Octek FOX-II User Manual

I
\0
The material in this manual is for information only and is subject
to change without notice.
REVISION: 4.0
I BM, I BM PC/XT/AT, PC-DOS, MS-DOS, OS/2,
INTEL,
AMI
ARE
THE
TRADEMARKS
OR
UNIX, XENIX,
REGISTERED
TRADEMARKS OF THEIR RESPECTIVE OWNERS.
RADIO FREQUENCY INTERFERENCE STATEMENT
This
generates
equipment
and
uses
radio
frequency energy and if not installed and used
properly,
in
that is,
strict accordance with
may
instructions,
manufacturer's
the
cause
interference with radio and television reception.
If this equipment does cause interference to radio
or
TV
reception,
turning
the
which
equipment
can
off
be
and
determined
on,
the
by
user
is
encouraged to try to correct the interference by
one or more of the following measures:
*
Reorient the receiving antenna.
*
Relocate the computer away from the receiver.
*
Move the computer away from the receiver.
*
Plug
the
power
cord
of
computer
into
a
different outlet so that computer and receiver
are on different branch circuits.
*
Ensure that card slot covers are in place when
no card is installed.
*
Ensure that card mounting screws, attachment
connector screws, and ground wires are tightly
secured.
*
If peripherals are used with this system, it is
suggested
to
use
shielded,
grounded
cables,
with in-line filters if necessary.
If necessary,
the user should consult the dealer
service repr�sentative for additional suggestions.
'-
The manufacturer is not responsible for any radio
or
TV
interferences
modifications
to
responsibility
of
interferences.
this
the
caused
by
equipment.
user
to
unauthorized
It
is
correct
the
such
Note
1.
To
achieve
optimum
performance.
'0
enable
Wait State option' and 'Main BIOS shadow'
the CMOS Setup.
2.
For
1MB
memory
configuration,
option
relocation'
'Memory
in
the
enable
the
111
CMOS
Setup; this will allow the 384KB to be used as
extended memory.
3.
Do not try to enable 'Fast I /0 BUS speed' in
the CMOS Setup unless you are sure that the
peripherals are capable of operating at high
speed.
4.
Electronic
componenls
are
sensiti1•e to
dust
Do inspecl and clean the computer
and dirt.
system regularly.
5.
Turn off the power whenever you install or
remove
any connector.
add-on card.
make
sure
memory
module
and
Before turning on the power.
that
all
the
connectors.
memory
modules and add-on cards are well secured.
6.
After power is on. please wait for a minute.
The system BIOS are going through a self-test
during this period and nothing is shown on the
screen.
will
After the self-test. the system BIOS
initialize
the
display
adaptor
and
messages will be shown.
7.
The SIMM sockets are fragile device.
Do not
force the SIMM modules into the sockets.
may break the locking latches.
It
Preface
This
manual
covers
the
necessary
information to operate the FOX-II system board.
In-depth
explanations
of
the
motherboard are provided.
functions
of
the
The table of contents
gives detailed information about the arrangement
of this manual.
The system BIOS setup is further
discussed in the appendix.
The
reference
content
in
and
intended
is
this
manual
to
information for the general users.
is
only
provide
for
basic
There are also
technical information provided for hardware and
software engineers.
The manual compose of 4 chapters,
contains
motherboard.
functions
a
brief
introduction
of
chapter
FOX-II
In the chapter 2, specifications and
of
FOX-II
are
discussed.
It
also
outlines many advanced features of the C PU and
the system architecture.
installation
jumpers
of
and
Chapter 3 deals with the
coprocessor,
the
DRAM
memory
modules,
configurations.
Technical information is provided in the chapter
4.
System
BIOS
and
the
system
further described in the appendix A.
setup
are
All setup
procedures are explained.
Note
FOX-II is avail able in three versions, 12MHz, 1.6MHz and
2 0MHz; which are further classified into 2 categories - with
Features and functions
or without memory modules.
described in the manual is identical for e ach version except
for their operating frequencies and memory configurations.
+
CONTENT
Chapter I
INTRO DUCTION
Chapter 2
GENERA L FEATURES
2- I
Specification
2- I
Processor
2-3
Math Coprocessor
2 -6
Memory System
2-8
I/0 Subsystem
2-10
System Functions
2-10
Chapter 3
'-
I -I
INSTA L LING COMPONENTS
3- 1
Installing 80287 Math Coprocessor
3- I
Installing System Memory
3-4
System Memory Configuration
3-5
Control of System Speed
3-10
System Board Jumper Setting
3-11
System Board Connectors
3-12
Chapter 4
T ECHNICAL INFORMATION
Memory Mapping
4- 1
4-1
1/0 Address Map
4-2
System Timers
4-4
System Interrupts
4-6
Direct Memory Access (DMA)
4-7
Real Time Clock and CMOS RAM
4-9
CMOS RAM Address Map
4-10
Real Time Clock Information
4-1 1
System Expansion Bus
4-12
APPENDIX A
S Y S TEM BIOS
A- 1
Memory Test Bypass
A-3
CMOS Setup
A-6
CMOS Setup Options
A-10
Exiting CMOS Setup
A-16
Running AMI BIOS Diagnostic
A-17
APPENDIX B
OPERATION & MAINTENANCE
B -1
Anti-Static Precaution
B-1
Keeping the System Cool
B-2
Cleaning the Golden Finger
B-2
Cleaning the Motherboard
B-3
APPENDIX C
SYSTEM BOARD LAYOUT
C-1
..
CHAPTER 1
I N TRO DUCTION
The FOX-II system board is a cost-effective,
mid-range
performance
designed for PC/AT
offers
an
system
board
that
compatible application.
increased
power
and
is
It
flexibility
architecture by supporting 80286 processor speeds
up to 20 MHz. (See NOTE on PREFACE)
For the memory system, it is configurable
from 256K to 4 MByte of DRAMs on the system
board with true "0" wait state DRAM accesses.
Hardware EMS is implemented with 4 registers.
addition
to
it,
System
and
features are also supported in
Video
In
shadowing
16K blocks.
It is
also optimized to allow mixing of DRAM types to
give end user the maximum flexibility in choosing
the correct DRAM capacity for their applications.
This flexibility in configuration allows
you
to
select an ideal cost/performance combination.
FOX-II is a fully PC/AT compatible system
board implemented with a highly integrated chip
sets to provide high performance, reliability and
compatibility.
This means that virtually all the
hardware and software that is available for the
PC/AT can also be run on a system
around the FOX-II system.
you build
It supports MS- DOS,
Xenix, Unix and all PC/AT application programs.
Users
PC/AT
can
on
run
applications
FOX-II
without
designed
any
for
the
modification.
Multi-tasking and multi-user capabilities are fully
functional on this system board.
1-1
INTRODUCTION
To speed up the switching of CPU between
protected and real mode, a special feature known
as
'OS/2
Otherwise
Optimization'
known
as
is
' Hot
also
Reset
incorporated.
and
Fast
A20
Gate', this feature provides an unique method to
handle the mode switching which will improve the
performance for advanced operating system and
expanded memory manager applications.
In addition, the FOX-II provides standard
ISA expansion bus connectors so that add-on cards
developed for the PC/AT will be fully functional.
On-board
power
implemented
to
good
ensure
generator
the
is
reliability
of
also
the
system and is capable of working with any power
supplies.
FOX-II
general
system
is
business
spreadsheet,
word
presentation
graphics,
network workstations.
1-2
the
perfect
choice
for
applications
involving
processing,
database,
telecommunications
and
CHAPTER 2
GEN ERA L FEATURES
S PECIFICATIO N
Processor S ubsystem
80286 CPU
Optional 80287 co-processor
S peed :
Turbo/normal speed
Software/hardware selectable
Mem ory S ubsystem :
4MB using 1M SIMMs
1MB using 256Kbx4
DRAM chips or 256K
SIMMs
Support memory mixing of 256K and 1M
System BIOS shadow
Video BIOS shadow
Hardware EMS implementation
128K or 256K Eprom BIOS
0 or 1 wait state selectable
2-1
GENERAL FEATURES
1/0 S ubsystern :
Compatible to standard AT bus
Four 16-bit expansion slots
Two 8-bit expansion slots
System S upport Functions :
8-Channe\ DMA ( Direct Memory Access)
16-level interrupt
3 programmable timers
CMOS RAM for system configuration
Real time clock with battery backup
OS/2 Optimization
(Fast A20 gate and
fast reset)
Oth er Features :
On board POWERGOO D test circuit
External battery connector
Hardware turbo switch
2-2
GENERAL FEATURES
PROCESSOR
The 80286 is an advanced, high-performance
with
microprocessor
specially
optimized
capabilities for multiple user and mul ti-tasking
systems.
The
80286
has
built-in
memory
protection that supports operating system and task
isolation
within
as
well
tasks.
management
as
program
The
80286
capabilities
and
data
includes
that
map
privacy
memory
30
2
(one
gigabyte) of virtual address space per task into 2 24
bytes ( 16 megabytes) of physical memory.
The 80286 is upward compatible with 8086
and 8088 software.
Using 8086 real address mode,
the 80286 is object code compatible with existing
8086,88 software.
In protected
virtual address
mode, the 80286 is source code compatible with
8086, 88 software and may require upgrading to
use
virtual
integrated
addresses
memory
mechanism.
Both
supported
management
modes
by
the
and
operate
at
80 286's
protection
full
80286
performance and execute a superset of the 8086
and 88 instructions.
The
support
80 286
the
provides
efficient
special
operations
implementation
execution of operating systems.
to
and
For example, one
instruction can end execution of one task, save its
state,
switch
to
a
new
task,
load
segment-not­
present exception and restartable instructions.
The 80286 operates in two modes: protected
virtual address and real address.
2-3
GENERAL FEATURES
Virtual A d d ress M o d e
The
virtual
address
mode
provides
a
!-gigabyte virtual address space mapped onto a 16
megabyte physical address space.
Virtual address
space is l arger than physical address space, and
the use of a virtual address that does not map to
a physical address l ocation will cause a restartable
interrupt.
This mode uses 32-bit pointers that consist
of a
16-bit selector and offset components.
The
sel ector specifies an index into a memory-resident
table, and the 24 bit base address of the desired
segment is obtained from the memory table.
A
16-bit offset is added to the segment base address
to form the physical address.
The microprocessor
automatically
the
tables
loaded
with
segment
references
register
is
whenever a
a
selector.
Instructions that load a segment register will refer
to
the
memory-based
program
support.
tables
The
without
additional
memory-based
contain 8-byte values called descriptors.
2-4
tables
GENERAL FEATURES
Real A d d ress Mode
In
contiguous
this
mode,
array
of
physical
up
to
I
memory
is
megabyte.
a
The
selector portion of the pointer is interpreted as
the upper
16 bits of a 20-bit address,
remaining 4 bits are set to zero.
and the
This mode of
operation is compatible with the 8088 and 8086.
Segments in this mode are 6 4 KB in size and
may be read, written or executed.
An interrupt
may occur if data operands or instructions attempt
to wrap around the end of a segment.
In this
mode, the information contained in the segment
does not use the full 6 4 KB, and the unused end of
the segment may be overlay by another segment to
reduce physical memory requirements.
2-5
GENERAL FEATURES
MATH COPROCESSOR
The
80287
Math
Coprocessor
enables
the
FOX-II system to perform high-speed arithmetic,
logarithmic
functions,
and
trigonometric
operations with extreme accuracy.
The coprocessor works in parallel with the
microprocessor.
The parallel operation decrease
operating time by allowing the coprocessor to do
mathematical
the
while
calculations
microprocessor continues t o do other functions.
The 80287 Math Coprocessor is an extension
to the 80286 microprocessor architecture.
When
combined with the 80286 microprocessor the 80287
dramatically
computer
increases
application
mathematical
the
processing
software
operations.
This
computer workstation platform
such
as
financial
modelling
speed
which
makes
of
utilize
an
ideal
for applications
and
spreadsheet,
CA D/CAM, or graphics.
It adds over seventy mnemonics to the 80286
microprocessor
math
instruction
operations include
exponential,
and
set.
Specific
logarithmic
trigonometric
80287
arithmetic,
functions.
The
80287 supports integer, extended integer, floating
point and BC D data formats, and fully conforms
to the ANSI/IEEE floating point standard.
The
Mathematics
Coprocessor,
8028 7
IS
treated as an 1/0 device through 1/0 port address
hex OF8, OFA and OFC.
2-6
The microprocessor sends
GENERAL FEATURES
O P codes a n d operands through t h ese I/0 ports.
The m icroprocessor a l so recei ves and stores res u l t s
t h ro u g h t h e s a m e I / 0 ports.
T h e "B U S Y " s i g n a l
genera ted b y t h e coprocessor s i g n i f i es to t h e
microprocessor to w a i t u n t i l t h e coprocessor h a s
f i n i s h e d e x e c u t i n g.
T h e follow i n g descr i be
c o p r o c e s s o r c o n t r o l p o r t s:
the
mathematics
OFO
T h e l a t c h e d Ma t h e m a t i c s C o p r o c e s s o r b u s y
signa l ca n be clea red w i t h an 8- bit, O u t
c o m m a n d , t o p o r t FO. T h e c o p r o c e s s o r w i l l
l a t c h " B U SY", i f i t a s s e r t s i t s e r r o r s i g n a l .
D a t a o u t p u t s h o u l d b e z e r o.
OFJ
The Ma t h e m a t ics Coprocessor w i l l reset to
real a d dress mode w h ic h is i n the 8087
compat i bl e i f a n 8- b i t O u t comm a n d i s s e n t
to port F l . A g a i n , t h e d a ta o u t p u t s h o u l d b e
ze r o.
2-7
GENE�AL FEATURES
MEMORY SYSTEM
DRAM
f e a t u r e s zero w a i t - s t a t e
FOX-II
a c c e s s e s i n a d e s i g n w h i c h s u p p or t s u p t o 4 M B y t e
T h i s f e a t u re
o f D R A M o n t h e s y s t e m b o ard.
i m pr o v e p e r f o rm a n c e s i g n i f i c a n t l y re l a t i v e t o t h e
U s e r c a n c o n f i g u re
c o n v e n t i o n a l PC / A T d e s i g n.
t h e D R A M f or t h e o n e - w a i t /z e ro - w a i t o p t i o n .
T h i s f l e x i b i l i t y i n c o n f i g ura t i o n a l l o w s y o u t o
s e l e c t a n i d e a l c o s t / p er f or m a n c e c o m b i n a t i o n .
H a rd w a r e L I M E M S i s s u p p ort e d u s i n g 4
r e g i s t er s e t s f or s o f t w a re a p p l i c a t i o n s w h i c h
H a rd w a r e E M S c a n
r e q u i r e e x p a n s i o n m e m or y .
a l s o b e d i s a b l e d a l l o w i n g t h e u s e o f s o f t w a re
" L i m u l a t o r s " f or m a x i m u m f l e x i b i l i t y . E x p a n d e d
m e m o r y pro v i d e s u s a b l e me m o r y b e y o n d D O S 's
D O S a p p l i c a t i o n pro gra m s t h a t
640K l i m i t.
c o n f or m t o t h e E M S ( s u c h a s t h e l a t e s t v e rs i o n s o f
1 - 2- 3 , S y m p h o n y , Fra m e w o r k II, S u p e rC a l c 3 ) c a n
u s e e x p a n d e d m e m or y . I f y o u u s e D O S a p p l i c a t i o n
p r o g r a m s , i t w o u l d b e m o s t d e s i ra b l e t o u s e E M S .
To f u r t h e r e n h a n c e t h e s y s t e m p e r f or m a n c e ,
Shadow RAM is a
s h a d o w R A M i s s u p p or t e d .
t e c h n o l o g y t h a t l o a d s s y s t e m B I OS a n d /or v i d e o
B I O S fro m t h e l o w s p e e d EPR O M / R O M d i re c t l y
i n t o f a s t D R A M d u r i n g b o o t -u p o f t h e c o m p u t e r.
have
will
BIO S t h e n
of the
The execution
s i g n i f i c a n t i m p ro v e m e n t b e c a u se a c ce s s t o D R A M
i s m u c h f a s t er t h a n R O M.
B IOS i s shadowed i n 1 6 K blocks i n the
ra n g e o f COOOO t o F F F F F . I n t h e c a s e t h a t I M o f
2-8
GENERAL FEATURES
m e m o r y i s i n s t a l l e d , i t a l so s u p p o r t r e l o ca t i o n o f
m e m o r y f r o m a d d ress A OOOO to a dd ress F F F FF
t h a t a r e n o t u s e d i n s h a d o w i n g t o a b o v e I M. T h e
f o l lo w i n g t a b l e shows t h e various shadow i n g and
r e l o c a t i o n c o m b i n a t i o n s.
-
Shadow Range Relocated
Relocation Range
Memory
No shadowing
AOOOO-FFFFF
384K
COOOO-
AOOOO-BFFFF
128K
DOOOO-
AOOOO-CFFFF
192 K
EOOOO-
AOOOO -DFFFF
256K
FOOOO-
AOOOO-EFFFF
320K
COOOO-CFFFF,
FOOOO-FFFFF
AOOOO-EFFFF,
DOOOO-EFFFF
256K
2-9
GENERAL FEATURES
1/0 SUBSYSTEM
I t i s very i mport a n t t h a t a h igh s peed
system
s ho u l d
be
compa t i bl e
with
existing
p e r i p h e r a l s w i t hou t dow n g r a d i n g t h e p e r f o r m a n c e .
The F O X - I I s y s t e m i s e x a c t l y d e s i g n e d w i t h t h i s
ca p a b i l i t y i n m i nd.
I t has the capa b i l i t y of
co m m u n i c a t i n g wi t h 1 / 0 p e r i p h e r a l s a t 8 MHz o r
s l o w e r w h i l e m a i n t a i n i n g hig h s p e e d f o r s y s t e m
ope r a t ion.
SYSTEM FUNCTIONS
S y s t e m f u n c t i o n s i n c l u d e:
I n te r r u p t
DMA
Tim e r
Real time clock
C l oc k a n d r e a d y g e n e r a t i o n
1/0 c h a n nel con trol
A l l s y s t e m f u n c t i o n s a r e 100% c o m p a t i b l e t o
A T s t a n d a r d . 1 / 0 c h a n n e l o f FOX- I I i s d e s i g n e d
to be compatible with standard AT bus.
All the
e x p a n s i o n c a r d s c o n f o r m e d t o t h e s t a n d a r d A T bus
c a n be u s e d i n FOX-II w i t h o u t p r o b l e m .
2-10
CHAPTER 3
INSTALLING COMPONENTS
Warning : Be sure to turn off the computer's
power sw itch before installing or replacing any
component.
If installation sounds risky. let your dealer
install the 8028 7. If you make a mistake. you could
damage the 8028 7 or your computer.
INSTALLING 80287 MATH COPROCESSOR
T h e s p e e d r a t i n g o f 8 0 2 8 7 Ma t h c o p r o c e s s o r
should match that of the system speed for an
optimum and reliable operation.
Refer to the
table below to d etermi ne the correct speed rating
o f t h e 8 0 28 7 .
I
FOX-II
20M H z S y s t e m
1 6M H z S y s t e m
1 2M H z S y s t e m
I Math
Coprocessor
8 0 28 7- 1 0
8 0 28 7- 1 0
8 0 28 7-8
3-1
INSTALLING COMPONENTS
Y o u r c o m p u t e r c a n be d a m a g e d b y s t a t i c
d ischa r ge.
Y o u're l ess l i k e l y t o d i s c h a rge s t a t i c
elec t r i c i t y i f you g r o u n d yourse l f by touch i n g t h e
metal
on
your
computer
before
you
begin
i ns t a l l at i o n .
F i n d t h e 8 0 2 8 7 s o c k e t o n y o u r c o m p u t e r 's
system board.
T h e s o c k e t h a s 20 h o l e s o n e a c h
s i d e , a n d i s l o c a t e d a t ' U l 2' o n t h e c o r n e r o f t h e
motherboard.
A l i g n the 8028 7 so that i t s notch matches u p
w i t h t h e n o t c h o n t h e soc ket. Before you i nsta l l
t h e 80287, v e r i f y t h a t i t s p i n s ma tch u p w i t h the
h o l e s i n t h e s o c k e t . I f t h e y d o n't, a l i g n t h e p i n s
b y l a y i n g t h e 80287 on its side on a table a nd
ge n t l y pressi n g i t s t o p edge ( n o t t h e pi n s). R e pea t
for t h e o t h e r row of p i n s.
Wh e n y o u a r e s u r e t h e p i n s a rc a l i g n e d
correc t l y , press f i r m l y a n d e v e n l y on t h e 80287 to
"s e a t " t h e p i n s i n t h e s o c k e t . C a r e f u l l y e x a m i n e
t h e 8 0 2 8 7's p i n s . L o ok f o r a n y p i n s t h a t a r c b e n t
u n d e r o r o u t . I f y o u f i n d b e n t p i n s , r e mo v e t h e
8 0 28 7 , g e n t l y s t r a i g h t e n t h e m , a n d i n s e r t t h e c h i p
again.
3-2
INSTALLING COMPONENTS
Il l u s t r a t i o n a r e g i v e n b e l o w.
�
Notch
�
80287
DDDDDODDDDDDDDODDDDD
D
I
I
I
I
J
DDDDDDDDDDD O DDDDDDDD
80287
]
SOCKET
C h e c k w h e t h e r t h e s y s t e m BIO S c a n d e t e c t
t h e c o p r o c e s s o r u p o n p o w e r u p . T h e s y s t e m BIOS
w i ll d i s p l a y a l i s t of d e v i ce s o n t h e m o t h e r b o a r d
a f t e r s e l f - t e s t. I f t h e c o p r o c e s s o r i s i n s t a l l e d , i t
s h o u l d show t h e type o f coprocesso r.
3-3
INSTALLING COMPONENTS
INSTALLING SYSTEM MEMORY
T h e s p e e d r a ti n g o f t h e s y s t e m D R A M
s h o u l d m a t ch t h a t o f t h e s y s t e m s p e e d f o r a n
o p t i m u m a n d r el i a b l e o p e r a t i o n .
R efer t o t h e
t a bl e b el o w t o d e t e r m i n e t h e c o r r e ct s p e e d r a t i n g
o f t h e D R A M.
I
*
3-4
FOX-II
I System
20 M H z S y s t e m
1 6 MHz System
1 2 MHz System
Only selected brand can be used.
about the det ailed information.
DRAM
60 n s
80 ns
1 00 n s
*
I
Please contact the dealer
INSTALLING COMPONENTS
SYSTEM MEMORY CON FIGURATION
F O X - II
offers
a
flexible
memory
c o n f i gu r a t i o n .
There
are
2 memory
banks
a v a i l a b l e, t h e s e m e m o r y b a n k s a r e r e f e r e n c e d a s
B A N K 0 a n d B A N K 1 i n t h e m o t h e r b o a r d . (See
Appendix C for the motherboard layout) U s e r h as
t h e o p t i o n o f e i t h e r u s i n g DIP t y p e D R A M o r
SIMM t y p e m e m o r y m o d u l e s .
Still if the user
p r e f e r s, h e c ou l d us e b o t h t y p e s t o g e t h e r .
That
m ea n s y o u co u l d u s e D I P a n d SIMM t y p e m e m o r y
a t t h e s a m e t i m e . P l e a s e n o t e t h at h o w e v e r , you
c a n n o t i n s ta l l b o t h m e m o r y t y p e s mar k e d w i t h t h e
sam e ban k r e f e r e n c e .
For example if you had
a l r e a d y i n s t a l l e d D I P m e m o r y i n t o ' B A N K 0', y o u
can n o l o n g e r i n s t a l l SIMM i n t o t h e S I M M s o c k e t
r e f e r e n c e d a s ' B A N K 0'.
O n e b a n k o f m e m o r y r e f e r s t o a s 2 SIMMs
m o d ul e s o r 6 D I P m e m o r y c h i p s ( 4 x 4 4 256 +
2 x 4 1 256). F o r t h e S I M M m e m o r y , u s e r c a n i n s ta l l
256 K a n d / o r
1 M S I M M; t h e r e f o r e
it
has
a
max i m u m m e m o r y c a p a c i t y o f 4 M e g a b y t e s .
On
t h e o t h e r h a n d ; i f p u r e l y DIP D R A M a r e u s e d , i t
w i l l al l o w u p t o 1 M e g a b y t e s o f m e m o r y . T h e DIP
D R A M a r e o r ga n i z e d i n 2 b a n k s a s s h o w n b e l o w :
3-5
INSTALLING COMPONENTS
Dip Mem ory Config uration
1! Mem ory Bank I
I
*
Memory Location
BANK 0
U 22, U23, U 27, U 28
U 1 8, U 1 9 ( pari t y )
B ANK 1
U 24 , U25, U 29, U 3 0
U 20, U 2 1 ( pari t y )
! DRAM Size l
4425 6
4 1 25 6
4425 6 /4464*
4 1 25 6 /4 1 64*
For the special case of 640K memory configuration, use the
combination of 4464/4164 DRAM size in 'BANK 1' for a more
cost/effective solution.
' U 1 8 , U 1 9' & 'U 20 , U 21' are t h e par i t y b i t s
f or B ANK 0 a n d B A N K I r e s p e c t i v e l y .
These
s o c k e t s c a n b e l e f t b la n k i f par i t y c h e c k i n g l o g i c
i s n o t d e s i rab l e .
T h e r e are s e v e ral c o m b i n at i o n s o f D R A M
t y p e s y o u m a y c o n s i d e r. S o , a bas i c s y s t e m c a n b e
e qu i p p e d w i t h f e w e r m e m o ry a n d l a t e r m o re
m e m or y c a n b e i n s ta l l e d w h e n u pgrad i n g t h e
As a t y p i ca l c a s e , a bas i c s y s t e m c a n b e
s y s t e m.
e qu i p p e d w i t h 5 1 2 K b y t e m e m o ry u s i n g 25 6 K D I P
D R AM a n d t h e n m e m o r y s i ze i s l a t er i n c reas e d t o
2.5 M e ga b y t e s b y p u t t i n g a n o t h e r 2 ban k s o f 1 M
S I M M . T h e m e m o r y s i ze i s d e t e c t e d au t o ma t i cal l y
b y s y s t e m B I O S a n d i n d i ca t e d d ur i n g m e m o ry t e s t
a f t er p o w er up .
N o s w i t c h e s o r j u m p e rs are
r e q u i r e d t o b e s e t f o r t h e m e m o r y s i ze a n d D R A M
t y pe .
3-6
INSTALLING COMPONENTS
The d ifferent configurations of memory is
i l l u s t r a t e d o n t h e f o l l o w i ng t a b l e .
I t s h o ws t h e
memory configuration a v a i l a b l e for each possi ble
memory map.
Mem ory Config uration
I
I
*
Bank 0
25 6K
25 6K
25 6 K
25 6K
1M
1M
I
Ban k 1
---
64 K
25 6 K
1M
--
-
1M
I T�-tal
Mem ory
I
5 1 2K
64 0 K
1M *
2.5 M
2M
4M
This is a special case where memory relocation i s available, the
384K of memory between 640K and 1M can be remapped
between 1M and 1.384M as extended memory or can be used
for EMS and Shadow RAM simultaneously.
3-7
INSTALLING COMPONENTS
Installing SIMM Modules
Whe n e v e r a d d ing m e m o r y mod u l es to t h e
m o t h e r b o a r d , i n s t a l l 2 m o d u l e s a t a t i m e.
A lso
m a k e s u r e t h a t the S I MM i s i n s t a l l e d in t h e
correct o r i e n t a t i o n , the c h i ps on t h e mod u l es
s h o u l d b e f a c i n g t h e 1 /0 b e x p a n s i o n s l o t s. S e e t h e
f o l l o w i n g p a ge f o r t h e c o r r e c t o r i e n t a t i o n o f t h e
m e m o r y m o d u l e s.
T o i n s t a l l a m o d u l e, t h e m o d u l e e d ge s h o u l d
a ng l e d i n t o t h e s o c k e t's c o n t a c t a n d t h e n t h e
m o d u l e i s p i v o t e d i n t o pos i t i o n , w h e re t h e loc k i ng
l a t c h e s w i l l s e c u r e i t . I f t h e m o d u l e e d ge i s n o t
comp l e t e l y i n serted i n to the socket, i t can not be
p i v o t e d t o b e i n v e r t i c a l p o s i t i o n a n d s h ou l d b e
d r a gge d o u t a n d i n s e r t e d a g a i n . D o n o t f o r c e t h e
m o d u l e i n t o t h e S I M M s o c k e t . I t w i l l d a m a ge t h e
l o c k i ng l a t c h e s .
T h e mod u l es should be locked b y t h e
l o c k i ng l a t c h e s o f t h e s o c k e t s f i r m l y .
Please
check c a r e f u l l y before t u r n i ng on the power.
O t h e r w i se, t h e s y s t e m w i l l n o t w o r k p r o pe r l y .
3-8
INSTALLING COMPONENTS
I13EEEIIIII
BANI\
0
BAN"
1
R A M Mod ule O r i e n t a t i o n
3-9
INSTALLING COMPONENTS
CONTROL OF SYSTEM SPEED
S y s t e m S p e e d ca n b e s e l ect e d b y h a r d w a r e
s w i tc h a n d k e y b o a r d .
C o n n ect o r P 3 s h o u l d b e
co n n ec t e d t o t h e t u r b o s w i t c h o f t h e ca s e p a n e l .
T h i s co n t r o l s t h e o p e r a t i o n m o d e b e t w e e n t u r b o
a n d n o r m a l m o d e,
i t will toggle between the 2
modes when pressed.
I n a d d i t i o n t o t h e f r o n t - pa n e l s w i tc h , y o u
can a l s o c h an g e t h e s y s t e m s p e e d v i a k e y b o a r d .
P r e s s 'C t r l ', 'Al t ' a n d '+' f o r t u r b o m o d e a n d
'C t r l ', 'Al t' a n d '-' f o r n o r ma l m o d e .
I n e i t h e r ca s e , t h e t u r b o L E D w i l l l i g h t u p
t o i n d i ca t e w h e t h e r t h e s y s t e m i s n o w r u n n i ng i n
t u r b o m o d e o r n o r m a l m o d e.
I n t u r bo mod e , t h e
tur b o L ED w i l l t u r n e d o n .
I n n o r m a l mod e , t h e
turbo LED is off.
I t s h o u l d b e n o t e t h a t t u r b o s w i t ch s e t t i n g
w i l l o v e r r i d e t h e k e ybo a r d s w i tc h i n g m o d e , but
n o t v i ce v e r s a .
3-10
INSTALLING COMPONENTS
SYSTEM BOARD JUMPER SETTING
T h ere
are
s e v er a l
ju m p e rs
in
the
m o t h e rbo a r d t h a t a l l o w t h e u s e r t o s e l e c t t h e
d e s i r e d s y s t e m c o n f i g u ra t i o n .
The follow ing
t abl e s s h o w t h e f u n c t i o n a n d d e f a u l t s e t t i ngs o f
t h e s e ju m p e r s .
ROM Size
I
JP I
I
I -2
2-3
ll
II
u u-ROM
S i ze
2 7 25 6 *
27 1 2 8
I
I
Display Selection
I
i
Note
•
JP 3
1 -2
2- 3
I
M o n o c h ro m e d i s p l a y *
C G A , E G A or V G A
factory setting
3-11
INSTALLING COMPONENTS
SYSTEM BOARD CONNECTORS
U n d e r t y p i ca l c o n d i t i o n s, t he s e c o n n e c t o rs
s ho u l d b e c o n n e c t e d to the i n d i ca t o r s a n d s w i t c he s
o f t he s y s t e m u n i t .
I
Connector
PI
P2
P3
P4
P5
P 6, P 7
P8
KBl
I
Function
Hard ware re s e t c o n n ec t or
S p eak er c o n n ec t or
Turbo s w i tch c o n n e c t or
Turbo L E D c o n n ec tor
P o w er L E D & E x t - l o c k c o n n e c t or
P o w er s u p p l y c o n n e c t or
E x t ernal bat t ery c o n n e c tor
K e y b oard c o n n e c t or
P i n as s i gn m e n t s
i l l u s t rat e d as f o l l o w s:
of
t he
c o n n e c t o rs
P 1 - Hardware Reset Connector
I
3-12
Pin
1
2
I
A s s i gn m e n t
Selec t i on P i n
Gro u n d
are
INSTALLING COMPONENTS
P
2
-
Speaker Connector
I
P 3
-
-
1
2
3
4
I
Assignment
Da t a o u t
+5 V d c
Gro u n d
+5 V d c
Turbo Switch Connector
I
P 4
Pin
Pin
1
2
I
A ss i g n m e n t
S e l ec t i on P i n
Ground
Turbo LED Connector
I
Pin
1
2
I
Assignment
+5 V d c
LED signal
3-13
INSTALLING COMPONENTS
P 5
-
Power L ED & E x t - L ock Connector
I
Pin
1
2
3
4
5
I
As s i g n m e n t
+5 V d c
Key
Grou nd
K e y board i n h i b i t
Ground
P 6 . P 7 - Power Supply Connector
I
Pin
1
2
I
3
4
5
6
I
Pin
1
2
3
4
5
6
3-14
I
As s i gn m e n t
P O WE R G O O D
+5 V d c
+ 1 2 Vde
- 1 2 Vde
Gro u n d
Ground
As s i gn m e n t
Ground
Ground
-5 V d e
+5 V d c
+5 V d c
+5 V d c
I
INSTALLING COMPONENTS
P 8
-
Ext ernal Bat t ery Conne c t or
I
KB 1
-
I
Pin
1
2
3
4
Assignment
+ Vdc
n o t u se d
Ground
Ground
Keyboard Connect or
I
Pin
1
2
3
4
5
I
-
Assignment
K e y bo a r d c l o c k
K e y bo a r d d a t a
Spare
Ground
+5 V d c
3-1 5
INSTALLING COMPONENTS
THIS PAG E IS INTENT I ONA L LY LE FT B L A N K
3-16
CHAPTER 4
TECHNI CA L I N FO R MATION
T h i s secti o n prov ides tec h n i c a l i n forma t ion
a b o u t F O X -II a n d i s i n t e n d e d f o r a d v a n c e d u s e r s
i n t e r e s te d
F O X - II.
in
the
basic desi g n
and
operation
of
MEMORY MAPPING
I A d d ress II
R a n ge
II
I
Function
S y s t e m Boa rd M e m o r y
(5 1 2K )
0000007FFFFF
O O O K -5 1 2K
0 8 000009FFFF
5 1 2K-64 0 K
System Board Memory
( 1 28 K )
O AOOOOOBFFFF
640 K - 7 6 8 K
D i s p l a y B u f f e r ( 1 28 K )
OCOOOOO D FF F F
768K -896K
A d a p to r R O M I
S h a d o w R A M ( 1 28 K )
0£0000OEFFFF
8 9 6 K - 960K
System R O M I
S h a d o w R A M (64 K )
O F OOOOOFFFFF
960 K - 1 024 K
S y s t e m B I O S R OM I
S h a d o w R A M ( 64 K )
1 000003 FF F F F
1 0 24 K -4 0 9 6 K
System Memory
4 00000FFFFFF
4096K- 1 63 1 8K
1 1 0 C h a n nel Memory
4-1
TECHNICAL INFORMATION
1 / 0 A D DRESS MAP
I/ 0
Address Map on Syste m Board
1 / 0 a d d re s s h e x 000 to O F F a r e r e s e r v e d for
the system board 1/0.
A D D R ES S
(HEX)
000-0 I F
020-0 3 F
4-2
I
DEVICE
D M A C o n t r o l l e r 1 , 8 23 7
I n t e r r u p t C o n t r o l l e r 1 , 8 25 9 , Ma s t e r
040-05 F
T i me r , 8 254
060-06F
K e y bo a r d C o n t ro l l e r
070-07F
Real Time Clock, NMI
( n on - m a s k a b l e i n t e r r u p t ) m a s k
0 8 0-09F
D M A P a ge R e g i s te r , 74LS6 1 2
OAO-OBF
I n te r r u p t C o n t r o l l e r 2 , 825 9
OCO-O D F
DMA Con troller 2 , 8237
OFO
C l e a r Ma th C o p r ocessor B u s y
OF I
R e s e t M a t h C o p rocessor
OF8-0FF
M a t h Coprocessor P o r t
I
II
TECHNICAL INFORMATION
1/0 a d d ress h e x 1 00 to 3FF are a v a i l a b l e on
the I/0 channel.
A D D R ES S
(HEX)
I FO- I F8
200-20 7
I
DE V I C E
Fixed Disk
--
_j
Game I/0
278-27F
P a ra l l e l P r i n te r P o r t 2
2F8-2FF
Seria l Port 2
300-3 1 F
Protot ype Card
360-36F
Reserved
378-37F
Para l lel Printer Port
380-38F
SDLC, bisynchronous 2
3 A 0- 3 A F
B i s y n c h ro n o u s I
3 B0 - 3 B F
M o n o c h rome D i s p l a y a n d P r i n te r
Adapter
3 C0 - 3 C F
Reserved
3D0-3DF
C o l o r G r a p h i c s Mo n i to r A d a pter
3F0-3F7
D i s k e t t e Con t r o l l e r
3F8-3FF
Serial Port
I
l
4-3
TECHNICAL INFORMATION
SYSTEM TI MERS
F O X -II h a s
t h ree
progra mmable
t i mer/
c o u n t e r s w h i c h a re b u i l d - i n in the c h i p s e t a n d
t h e y a r e d e f i n e d as c h a n n e l s 0 t h rough 2 :
I
I
Channel 0
Gate 0
T i ed o n
1 . 1 90 M h z OSC
Clk out 0
8 25 9 I R Q 0
Channel I
Gate
}
Clk in 1
I
I
System Timer
Clk in 0
Clk out 1
4-4
II
--
-
-
-�
-
Refresh Request
Generator
Tied on
1 . 1 90 Mhz OSC
R eq u est R efresh C y c l e
TECHNICAL INFO RMATI 0 N
I
t
11
!
�
Note
Channel 2
Gate 2
1
Tone Generation of
Speaker
Controlled by bit 0 of
p o r t h e x 6 1 P PI b i t
Clk in 2
1 . 1 90 Mhz OSC
Clk out 2
Used to d r i ve the
spea ker
Channel 1 is programmed to generate a 15-micro-second
period s i gnal.
T h e 8 25 4 T i m e r / C o u n t e r s a r e t r e a t e d b y
s y s t e m p r o g r a ms a s a n a r ra n ge m e n t o f f o u r
progra mmable external I / 0 ports.
T h ree a re
trea ted as cou n ters and the fourth is a con trol
register for mode prog ramming.
•
•
4-5
TECHNICAL INFORMATION
SYSTEM INTERRUPTS
Sixteen levels of system i n terrupts are
provided on FOX-II. The fol low ing shows the ·
i n te r r upt-level ass i g n ments i n d ecrea s i n g priority . .
Level
\
Function
Microprocessor NMI
Parity or 1/0 Channel
Check
I n t e r r u p t C o n t r o l l e rs
CTLR 2
CTLR I
T i mer Output 0
K e y board
(Output Buffer Full)
Interrupt from CTLR 2
I RQO
IRQ !
IRQ2 I
I RQ8
I R Q9
L_____j I R Q I 0
IRQ I I
IRQ I 2
IRQ I 3
IRQI4
IRQ I S
l__
IRQ3
I R Q4
I R Q5
I R Q6
I RQ7
4-6
Real-time Clock I n terrupt
So f t w a r e R e d i r e c t e d t o
I N T O A H ( I R Q 2)
Reserved
Reserved
Reserved
Coprocessor
F i x ed Disk Con t r o l l e r
Reserved
Se r i a l P o r t 2
Serial Port I
Parallel Port 2
D is k e t t e Cont rol l e r
Pa r a l l e l P o r t I
..
TECHNICAL INF0RMA TIO N
DIR E CT MEMORY A C C E S S ( D MA )
FOX - I I s u pports seven DMA c h a n n e l s.
I
I
�
Channel
0
1
I
!
I
Function
Spare ( 8 b i t t ra n sfer)
,SDLC (8 bit transfer)
2
Floppy Disk ( 8 b i t t r a n s fer)
3
S p a r e ( 8 b i t t r a n s fe r )
4
Cascade for DMA Co n t ro l l e r
5
Spare ( 1 6 bit transfer)
6
Spare ( 1 6 bit tra nsfer)
7
Spare ( 1 6 bit tra nsfer)
I
I
_
,
4-7
TECHNICAL INFORMATION
The f o l l o w i n g shows the a d d resses for the
page register.
I
P a g e R e g i s te r
DMA Channel 0
4-8
I
•
I/0 Address ( H E X )
008 7
DMA Channel I
0083
DMA Channel 2
008 1
DMA Channel 3
0082
DMA Channel 5
008 B
DMA C h a n nel 6
0089
DMA Channel 7
008A
Refresh
008F
TECHNICAL INFORMATION
REAL TIME CLOC K AND CMOS RAM
"
T h e CMOS R A M C h i p ( 1 468 1 8 ) conta i n s t h e
r e a l - t i m e c l o c k a n d 64 b y t e s o f C M O S R A M , i t
keeps con f i g u ra t ion i nformation when power i s
o f f . U p o n y o u t u r n t h e s ys t e m p o w e r o n , CMOS
w i l l load t h e recorded con f i g u ra t ion i n t o the
system so that the system can function i n the
r i g h t t r a c k w i t h t h e e q u i p pe d d e v i ces. H o w e v e r ,
i f y o u h a v e n ' t c o n f i g u red t h e CMOS, or t h e
battery w h ic h s u pports the power to the CMOS i s
wea ken, you n e e d to redefine the necessary
para meters w h e never the system is boot u p. The
follow i ng page shows the CMOS R A M a d d resses.
.l>
4-9
TECHNICAL INFORMATION
CMOS RAM A D DRESS M A P
I
A d d resses
00-0D
I
Desc r i p t i o n
* R e a l - t i m e c l o c k i n fo r m a t i o n
OE
* D i a gn o s t i c s t a t u s b y t e
OF
* S h u td o w n s t a t u s b y te
10
D i s k e t t e d r i v e t y pe b y t e
- d r i ves A a n d B
R es e r v e d
11
12
F i x ed d i s k t y p e b y te
- d r i ves C a n d D
13
Reserved
14
E q u ipment byte
15
L o w base m e m o r y b y t e
16
H i g h base memory byte
17
Low expansion memory byte
18
H i gh expansion memory byte
1 9-2D
2E-2F
R e s e r v ed
2- b y t e CMOS c h e c k s u m
30
* Low expansion memory byte
31
* H i g h e x pa n s i o n m e m o r y b y t e
32
* Date century byte
33
34- 3 F
* I n f o r ma t i o n f l a gs
(set d u ri n g power on)
Reserved
These bytes are n o t included i n the checksum calcul at i on and
are not p a r t of the configura t i on record.
4-10
I>
TECHNICAL INFORMATION
REA L TI ME C L O C K I N FORMATIO N
<>
T h e f o l l o w i n g t a b l e d e scr i b e s r e a l - t i m e
cl o c k b y t e s a n d s p ec i f i e s t h e i r a d d r e s s e s .
I Byte I
•
Function
A d d ress
0
S e co n d s
00
1
S e co n d a l a r m
01
2
Minutes
02
3
Mi n u t e a l a r m
03
4
H o u rs
04
5
Hour alarm
05
6
Day of week
06
7
D a t e o f mo n t h
07
8
Mo n t h
08
9
Year
09
10
S t a t u s R egi s t e r A
OA
1 1
S t a t u s R egi s t e r B
OB
12
S t a t u s R e gi s t e r C
oc
13
S t a t u s R egi s t e r D
OD
4-11
TECHNICAL INFORMATION
SYSTEM EXPANSION BUS
F O X - I I p ro v i d e s s i x e x p a n s i o n s l o t s, f o u r o f
w h i c h are 1 6 -b i t a n d t w o a r e 8 -b i t e x pan s i o n s l o t .
0
T h e 1/ 0 c h a n n e l s u p p or t s :
*
1 / 0 ad d r e s s s pac e f r o m h e x 1 0 0 t o h e x 3 F F
*
S e l e c t i o n o f d a t a a c c e s s ( e i t h e r 8 or 1 6 b i t )
*
24 b i t m e m o r y a d d re s s e s ( 1 6 M B )
*
I n t erru p t s
*
D M A c h an n e l s
*
M e m or y r e f re s h s i g n a l
•
4-12
TECHNICAL INFORMATI0 N
T he
fo l l o w i n g
f igure
s ho w s
the
pin
n u m b er i n g for 1 /0 c ha n n e l c o n n e c t o rs J A 1 - J A 6 .
(I
0
REAR PANEL
81
A1
810
A10
820
A20
831
A31
COMPONENT SIDE
4-13
TECHNICAL INFORMATION
The
f o l l o w i ng
f i gure
shows
the
pin
n u mber i n g f o r 1 /0 c h a n n e l c o n n e c t o rs J B I ,JB 3,JB5
& J B 6.
"
REAR PANEL
01
C1
010
C10
018
C18
COMPONENT SIDE
0
4-14
TECHNICAL INFORMATION
The
following
ta bles
s u m m a r i ze
as s i g n m e n t s f o r t h e I / 0 c h a n n e l co n n e ct o r s .
Q
I/0 Channel (A-Side)
I
•
pin
1/0 Pin
AI
A2
A3
A4
AS
A6
A7
AS
A9
AIO
All
A12
A13
A14
A15
Al6
Al7
Al8
Al9
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
I
Signal Name
-1/0 CH CK
S07
S06
S05
S04
S03
S02
SOl
SOO
-1/0 CH ROY
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SAil
SAlO
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SAl
SAO
I
1/0
I
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
I
0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
I
4-15
TECHNICAL INFORMATION
I/0 Channel ( B-Side)
I
4-16
1/0 Pin
B1
B2
B3
B4
B5
B6
B7
BB
B9
B10
Bll
B12
B13
814
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
I
----
Signal Name
GND
RESET DRY
+5 Vdc
IRQ9
-5 Vdc
DRQ2
-12 Vdc
OW S
+12 Vdc
GND
-SMEMW
-SMEMR
-lOW
-lOR
-DACK3
DRQ3
-DACK1
DRQ1
-Refresh
C LK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
-DACK2
T/C
BALE
+5 Vdc
osc
GND
I
1/0
Ground
I
Power
I
Power
I
Power
I
Power
Ground
0
0
I/0
I/0
I
0
I
0
I/0
0
I
I
I
I
I
0
0
0
Power
0
Ground
I
•
i
•
TECHNICAL INFORMATION
1/0 Channel ( C-Side )
I
1/0 Pin
Cl
C2
C3
C4
C5
C6
C7
C8
C9
ClO
Cll
C12
C13
C14
C15
C16
C17
C18
I
Signal Name
SBHE
LA2 3
LA22
LA21
LA20
LA19
LA18
LA17
-MEMR
-MEMW
SD8
SD9
SOlO
SDll
SD 12
SD13
SD14
SD15
I
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
I
..
4-17
TECHNICAL INFORMATION
l/0
Channel ( D-Side)
I
1/0 Pin
Dl
D2
D3
D4
DS
D6
D7
DB
D9
D10
Dll
D12
D13
D14
D15
D16
D17
D18
I
Signal Name
-MEM CS16
-1/0 CS16
IRQ10
IRQll
IRQ12
IRQ15
IRQ14
-DACKO
DRQO
-DACK5
DRQ5
-DACK6
DRQ6
-DACK7
DRQ7
+5 Vdc
-MASTER
GND
I
1/0
I
I
I
I
I
I
I
0
I
0
I
0
I
0
I
Power
I
Ground
I
"'
t>
4-18
APPENDIX A
SYSTEM BIOS
"
�
Al l m i c ro c o m p u t e r s y s t e m s us e a Bas i c In p u t
O ut p u t S y s t e m .
T h i s i s s o f t w are t h a t h a s b e e n
p e r m an e n t l y re c ord e d i n a R O M ( R ead O n l y
M e m o r y ) c h i p a n d f u n c t i o n s as t h e bas i c p o i n t o f
c o m m u n i ca t i o n b e t w e e n t h e s y s t e m b oard a n d t h e
r e s t o f t h e c o m pu t e r .
T h e BIO S p r o v i d e s a n o p erat i o n a l i n t e r fac e
t o t h e s y s t e m a n d re l i e v e t h e program m e r fro m
w orr y i n g a b o u t t h e c h arac t e r i s t i c s o f h ard w are
d e v ices.
T h us,
h ar d w are
m o d i f i cat i o n s a n d
e n han c e m e n t s
become
tran s pare n t
to
u s er's
progra m s , ac c e s s to B I O S i s t h r o u g h t h e p rogra m
i n t e rr u p t s o f t h e 8 0 2 8 6 m i c ro pro c e s s o r.
Eac h
B I O S e n t r y p o i n t i s a v a i l a b l e t h ro u gh i t s o w n
i n t e rr u p t.
...
U p o n y o u t ur n o n t h e p o w e r o f y o u r F O X -II
s y s t e m, t h e s y s t e m w i l l go t h ro u g h a s e l f - t e s t
r o u t i n e w h i c h c h e c k s a l l o f i t s i n t e rnal d e v i c e s .
C o m p l e t e t e s t i n gs w i l l b e carr i e d o u t o n t h e C P U ,
b a s e 64 0 K R A M, e x t e n d e d R A M, R O M, s y s t e m
b oar d , C M O S m e m o r y , v i d e o c o n t ro l l ers, para l l e l
a n d s e r i al s u b s y s t e m s , f l o p p y a n d f i x e d d i s k
s u b s y s t e m s a n d t h e k e y b o ard .
Wh e n t h e s e l f - t e s t i s c o m p l e t e d, t h e s y s t e m
s
earc
h f o r t h e D O S ( d i s k o p e rat i n g s y s t e m )
will
s y s t e m f i l e i n dri v e A . I f n o s y s t e m d i s k e t t e i s
p u t i n d r i v e A, i t w i l l c h e c k t h e f i x e d d i s k ( i f
i n s ta l l e d ).
A-1
SYSTEM BIOS
If i t i s t h e f i rs t t i me that the computer i s
s tar t e d u p, y o u w i l l n e e d t o c o n f i g u r e t h e s y s t e m
b y t e l l i n g t h e SETUP progra m what h a rd ware
co n f i g u r at i o n y ou r s y s t e m c o n t a i n s .
•
T h e S E T U P i s a p r o g r a m t hat r e s i d e s i n t h e
BIOS a n d i s cal l e d u p e v e r y t i m e t h e s y s t e m b o o t s
up.
It
l e ts
you
speci f y
y ou r
s y s t e m's
co n f i gu r at i o n of d i s k e t t e d r i v e s, h a r d d i s k d r i v e s,
v i d e o d i s p la y , m e m o r y , d a t e a n d t i m e. T h e A MI
B I O S S E T U P p r o v i d e s a o n e- s c r e e n i n t e r a c t i v e
e qu i p m e n t a n d m a c h i n e co n f i gu r a t i o n s e t u p . I t
can b e r u n a f t e r t h e s y s t e m h a s b e e n t u r n e d o n
and the memory test is finished or has been
e s ca p e d . T h e S E T U P p r o g r a m i s b u i l t - i n , y ou d o
not need a d iskette to use it.
I f y o u r F O X -II i s a l r e a d y i n s t a l l e d i n a
w o r k i n g s y s t e m, y o u w i l l n o t n e e d t o u s e t h e
S E T U P p r o g r a m un less t h e con f i g u r a t i o n a l r e a d y
recorded i n t h e o n-board CMOS R A M i s lost or a
chan g e
is
made
in
y ou r
system
hardware
co n f i g u r at i o n . I f t h e i n f o r m a t i o n i s l o s t d u e t o
l o s s o f b a t t e r y p o w e r, y o u w i l l n e e d t o r e e n t e r t h e
c o n f i gu r a t i o n .
..
A-2
SYSTEM BIOS
MEMORY TEST BYPASS
After the system is powered on or after a
r e s e t , t h e BIO S p e r f o r m s d i a g n o s t i cs o f t h e s y s t e m
a n d d i s pla y s t h e s i z e o f t h e m e m o r y b e i n g t e s t e d .
N o t e t h a t y o u ca n b y p a s s t h e m e m o r y t e s t
b y p r e s s i n g t h e < E S C> k e y . T h i s o p t i o n w o u ld b e
u s e f ul w h e n t h e m e m o r y o n t h e s y s t e m i s q u i t e
l a r g e.
Y o u m a y h i t t h e < E S C> k e y w h e n t h e
m e s s a g e f ollo w i n g m e s s a g e a p p e a r s o n t h e s c r e e n :
Press <ESC> Key to bypass MEM 0 RY te_st
It i s r e c o m m e n d e d t o c o m ple t e t h e m e m o r y
t e s t . T h e t o t a l m e m o r y s i z e i s d i s pla y e d a f t e r t h e
m e m o r y t e s t.
I n c a s e o f s e r io u s e r r o r s , t h e B I O S will
s u s p e n d t h e t e s t . If t h e d i s p l a y i s n o t i n i t i a li z e d ,
t h e BIO S ' w i ll r e p o r t t h e e r r o r t h r o u g h a s e q u e n c e
o f b e e p s o u n d s. O t h e r w i s e , e r r o r m e s s a g e w i l l b e
s h o w n o n t h e s cr e e n .
..
There are two t y pes of errors reported by
beep sounds.
O n e i s c o n v e y e d a s o n e lo n g b e e p
f ollo w e d b y a n u m b e r o f s h o r t b e e p s .
The
m e a n i n g s o f t h e e r r o r s a r e a s b elo w :r
Short Beep Count
3
8
Meaning
Memory F ailure
Display Adapter Failure
A-3
SYSTEM BIOS
T h e o t h e r t y p e o f e r r o r s a r e s e r i o u s fa i l u r e
a n d a re conveyed as a n u m be r of beep and
r e p e a t e d i n f i n i t e l y.
Beep Count
Meaning
I
3
4
5
6
D R AM R e f r e s h Fa i l u re
B a s e 64 K B y t e Me m o r y F a i l u r e
System T i mer Fa i l u re
P rocessor Fa i I u re
K e y b o a r d C o n t r o l l e r - G a t e A 20
Failure
7
9
V i r t u a l M o de E x c e p t i o n E r r o r
R O M - BIO S C h e c k s u m F a i l u r e
I f n o e r r o r i s f o u n d d u r i n g s e l f - t e s t, t h e
s y s t e m BIOS w i l l p r o c e e d t o b o o t f r o m f l o p p y d i sk
or hard disk.
T h e system B I OS w i l l l ist the
system con figuration on the screen similar to
b e l o w.
System Configuration (C) Copyright 1985-1990, American Megatrends Inc.,
Main Processor
Numeric Processor
Floppy Drive A:
Floppy Drive B:
Display Type
ROM-BIOS Date
A-4
:
80286
None
1.2 MB, 5'/,"
1.44MB, 3Vz"
VGA or EGA
6/13/90
Base Memory Size
Ext. Memory Size
Hard Disk C: Type
Hard Disk D: Type
Serial Port(s)
Parallel Port(s)
640 KB
0 KB
2
None
None
3BC
"
SYSTEM BIOS
•
Do check t h e l ist to make s u re t h a t the
con f i g u ra t i o n i s correct.
Sometimes, problems
a r i s e b e c a u s e o f t h e i n co r r e c t i n forma t i o n o f t h e
co n f i g u r a t i o n.
F o r e x a m p l e, i f y o u f o r g e t t o
modi f y the set u p a fter changing the floppy d i s k
d r i v e f r o m o n e t y p e t o a n o t h e r, i t c a n n o t b o o t
from floppy disk or may not work properly.
If
y o u c h e c k t h e l i s t , y o u ca n f i g u r e o u t t h e c a u s e o f
the problem at the early stage.
..
A-5
SYSTEM BIOS
CMOS SETUP
Note : The BIOS may be updated from time
to time, the one you got may not be exactly as
discussed; this section will also be updated as
necessary.
..
F ollo w t h e i n s t r u c t i o n s a s t h e y c o m e u p o n
t h e screen to complete the i n i t i a l proced u re. The
i n i t i a l prompt on t h e screen tells you to press the
< D E L> k e y i f y o u w a n t t o u s e t h e s e t u p p r o g r a m .
It i s d is p l ayed b r i e f l y just a fter t h e R AM test i s
run when you first turn on the system.
If it
d isappears before you h a v e a c h an e e to respond
t u r n the system off and on a ga i n or reset t h e
s y s t e m a n d t h e m e s s a g e w ill r e a p p e a r . T h e i n i t i a l
screen prompt will be similar to:
Press <DEL> key if you want to run SETUP or DIAGS
H i t <D E L> k e y t o g e t i n t o t h e S e t u p Mod e .
( N o t e t h a t < D E L> k e y w i l l g e t y o u i n t o t h e s e t u p
m o d e, o n l y w h e n t h e a b ove m e s s a g e i s d i s p l a y e d
o n the screen.)
"'
U p o n y o u r p r e ss i n g o f t h e <DE L> k e y , t h e
f o l l o w i n g message w i l l a ppea r on t h e screen :
EXIT FOR BOOT
RUN CMOS SETUP
RUN DIAGNOSTICS
A-6
SYSTEM BIOS
U s e < U p> a n d < D ow n > k e y s t o h i g h l i g h t t h e
s e l e c t e d i t e m.
H i g h l i g h t R U N C M O S S E TU P f o r
t h e S E TU P p r o g r a m a n d p r e s s t h e <R e t u r n > k e y t o
enter t h i s opti on.
D e p e n d i n g on
the
B I O S v e r s io n , a S E TUP
m e n u s i m i l a r t o b e l o w wi l l a p p e a r s:
CMOS SETUP (C) Copyright 1985-1990, American Megatrends Inc.,
Date (mn/date/year) :
Time (hour/min/sec) :
:
Floppy Drive A:
:
Floppy Drive B:
Sun, Jul 1, 1990
12 : 05 : 30
1.2 MB, 5V,"
1.44 MB, 3'12"
Hard Disk C: type
:
Hard Disk D: type
:
Primary Display
:
Keyboard
Video BIOS shadow :
Scratch RAM option :
Main BIOS shadow :
Fast I/0 BUS Speed :
0 W ait State Option:
Memory Relocation
Not Inst alled
Not Installed
VGA or EGA
Installed
Enabled
1
Enabled
Disabled
Enabled
Enabled
640 KB
0 KB
None
Base memory size
Ext. memory size
Numeric Processor
Cyln Head WPcom LZone Sect Size
Month :
Date
Year
Jan, Feb, .......... Dec
01, 02, 03, ........ 31
1901, 1902, ....... 2099
ESC=Exit,!�r�=Select,PgUp/PgDn=Modify
Sun Mon Tue Wed Thu Fri
Sat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
6
7
8
9
10
11
5
A-7
SYSTEM BIOS
O n c e y o u h a v e e n t e r e d t h e S E T U P m enu ,
en ter t h e d a te, t i me,
the primary d isplay type,
t h e f l o p p y d r i v e i n s t a l l e d a n d t h e h a r d d i s k dr i v e
t y p e ( i f i n s t a l l e d ).
The SETUP progra m will
a u t o m a t i c a l l y d e t e r m i n e s y o u r c o m p u t e r 's m e m o r y
c o n f i g u r a t i o n a n d d i s p l a y s i t o n the S E T U P m e n u .
A-8
SYSTEM BIOS
Key Conventions
Th e f i e l d s h o w n i n re vers e v i d e o is t h e
c u rre n t f i e l d , w h i c h i s t h e o n e t h e u s e r ma y
c h a n g e s.
Use the arrow keys to move
Use <PgUp> or <PgDn> to
settings menu.
Use <ENTER> to select the
Use <ESC> key to abort
previous menu.
the options.
move bar inside
options.
and return
to
N o t e t h a t i f u s er s e t t i n g s d o n o t a l l o w
s y s t e m t o s t a r t u p, w h i c h h a p p e n s i f i n c orrec t
s e t t i n g s w e re m a d e; t h e f o l l o w i n g s t e p s s h o u l d be
t a k e n:
a)
b)
c)
d)
T ur n
Hold
Turn
Whe n
o f f t h e c o m p u t e r.
< I N S> k e y d o w n .
o n t h e c o m p u t e r.
m e m or y t e s t b e g i n s, re l e a s e <INS> key .
T h e a b o v e pro c e d ure w i l l c l e a r t h e C M O S
re g i s t er h e n c e a l l o w i n g t h e BIO S t o bri n g u p t h e
s y s t e m w i t h B I O S d e f a u l t v a l u e s.
A-9
SYSTEM BIOS
CMOS SETUP OPTIONS
F o l l o w i n g i s a d e ta i l e x p l a n a t i o n o f e a c h
CMOS S e t u p o p t i on.
OPTION 1
TIME AND DATE
Use PgUp and PgDn keys to change the
v a l u e.
The d a t e a n d t i m e cannot be e ntered
d i r e c t l y.
A calender i s d ispla yed on the lower
right corner of the screen for your reference.
OPTION
2
Four
s u p p o r t e d:
I.
2.
3.
4.
5 - v.
5 - v.
3 -v,
3 -v,
FLOPPY DISK DRIVE
t y pes
i nch
inch
inch
inch
of
floppy
disk
dri ves
a re
s t a n d a rd d r i v e ( 3 6 0 K )
h igh-density drive ( 1 .2M)
s t a n d a rd d r i v e ( 7 20K )
h i g h - d e n s i t y d r i v e ( 1.44 M )
T h e s y s t e m B I O S s up p o r t s t w o f l o p p y d i s k
d r i ves a n d t h e y a r e recogni zed as d r i v e A a n d B .
S e l e c t t h e c o r r e c t t y p es .
Otherwise t h e d ri v es
cannot work properly.
If one of them is not
i n s t a l l e d, s e l e c t 'N o t I n s t a l l ed' f o r t h a t d r i v e .
A-10
0
SYSTEM BIOS
The BIOS is able to detect the type of the
drives automatically.
But remember to check the
settings before exit.
FIXED DISK DRIVE
OPTION 3
There are 4 7 types of fixed disks supported
by the BIOS.
Consult your fixed disk manual to
determine its correct type.
The parameters such
as cylinder number, head number, sector number
and
pre-compensation
must
match
your
fixed
disk's parameters.
Use
PgUp
and
fixed disk type.
PgDn
keys
to
change
the
If the type of your fixed disk is
not included in the hard disk list, define a new
type as type 47.
Use left and right arrow keys to
move between the parameter fields and enter the
parameters.
CMOS
RAM
afterwards.
The parameters will be stored in the
and
Each
your
fixed
disk
can
hard disk can be
different type 47 hard disk.
be
used
assigned
a
So two hard disks
which are not included in the list can be used
together in your system.
.,
If the type of fixed disk is wrong, it takes
a while before the BIOS can identify the error.
After setting the fixed disk type, if the system
halts after reboot, please wait for a while.
It is
most likely that the setting of fixed disk type is
incorrect.
A-ll
SYSTEM BIOS
When you install a new hard disk, make sure
whether it is already formatted.
If not, the BIOS
has to check for a while before reporting the hard
disk error.
In fact, the error arises only because
the hard disk is not formatted.
If the hard disk
is formatted, you can run DOS F DISK and DOS
FORMAT.
Some fixed disks are specially handled and
must be set to 'Not Installed'.
Consul t the fixed
disk manual for details.
OPTION 4
DISPLAY
Four types of display are supported:
I.
CGA 80 column mode
2.
CGA 40 column mode
3.
EGA and VGA
4.
Monochrome
If the type of display is incorrect, the BIOS
will prompt you and ask you to set up again.
But
the BIOS is still able to display messages on the
display
attached
to
the system.
Thus you can
enter the setup program.
The jumper
this setting.
after self-test.
A-12
JP4
must be set according to
Otherwise, the BIOS will report error
0
SYSTEM BIOS
OPTION 5
KEYBOARD
If a
keyboard is attached to
select 'Instal l ed'.
the
system,
The BIOS will test the keyboard
during self-test.
OPTION 6
The
VIDEO BIOS SHADOW
Video
BIOS
Shadow
can
/disabled in this particular option.
card
has
no
video
monochrome display
shadow
the
Video
ROM
(as
card),
there
BIOS.
in
be
enabled
If the display
the
case
of
is no need to
However,
if
you
arc
using VGA or EGA card where there's video ROM,
video accesses will
shadow is enabled.
be improved if video
BIOS
You will not be able to enable
this option if you have less than
1MB of system
memory.
a)
Disabled*
b)
Enabled
"
OPTION 7
SCRATCH RAM
The BIOS may require memory storage for
certain functions and the storage can be allocated
in two ways.
One way is to use the BIOS stack
and another is to allocate a
I K bytes memory in
A-13
SYSTEM BIOS
the base memory.
appropriate.
or
if
you
Generally, the former option is
If the hard disk type 47 is defined
run
program
like
OS/2,
select
the
option 2.
OPTION 8
MAIN BIOS SHADOW
Main BIOS Shadow can be selected in this
menu.
more,
If you
enable
have system memory of
Main
efficient system.
at FOOOOh.
BIOS
shadow
for
I MB or
a
more
The Main BIOS will be shadow
You cannot enable this option if your
system memory is less than I MB.
a)
Disabled*
b)
Enabled
OPTION 9
Fast I /0 BUS speed
This option provides a way t o speed up the
1/0 operation, however care should be exercised in
setting this option.
Make sure that the peripheral
cards
of
are
capable
operating
at
high
speed
before making changes, otherwise problems could
arise.
It is therefore strongly recommended that
this option be disabled.
A-14
a)
Disabled*
b)
Enabled
�
SYSTEM BIOS
OPTION 10 0 WAIT STATE OPTION
With this feature, user can use a wide range
of DRAM speed available.
If the user is using
slow DRAM, disable this option; this will provide
better timing margins for the DRAM.
high
speed
DRAM
is
available
to
If however
the
user,
do
enable this option; this will allow zero wait state
memory
access
and
improve
performance significantly.
to
the
user
to
the
system
In that way, it is up
determine
the
desired
cost/performance effective system.
a)
Enabled*
b)
Disabled
OPTION 11 MEMORY RELOCATION
If your system memory is
this
feature.
384KB
In
memory
that case
so
that
I
you
the
MByte, enable
can
remap
memory
the
which
is
neither used as EMS nor shadow RAM can be used
"
as ex tended
applicable
memory.
only
for
Note that
the
I
this
MByte
option
is
memory
configuration.
*
a)
Enabled*
b)
Disabled
BIOS Default
A-15
SYSTEM BIOS
EXITIN G CMOS S ETUP
After you have entered the correct va I ues to
all of the SETUP options, you may now exit the
SETUP program.
exit.
To do so, press <ESC> key to
The following message will then appear
Write d ata into CMOS and exit (Y /N ) ?
Press
Y t o update the data and exit the
SETUP program.
The
computer
now
performs
a
cold
boot
(equivalent to turning the power off and back on
again), performs the memory test, and then tries
to boot from the disk drive.
If your hard disk
has not yet been initialized, be sure that you have
a bootable DOS diskette in the A drive.
'I'
A-16
SYS�EM BIOS
RUNNING A MI BIOS DIAGNOSTICS
Follow initial procedures in the C MOS Setup
until the following display is shown on the screen:
EXIT FOR BOOT
RUN CMOS SETUP
RUN D IAGNOSTICS
•
Use
the
<Up>
&
< Down>
highlight bar to select "RUN
then press <Enter>.
to
move
the
DIAG NOSTICS" and
A diagnostic menu will soon
appear on the screen.
The AMI
Diagnostics provides an easy
to
operate screen-menu allowing inexperienced users
to operate the program. Simply press
<Left>
or
<Right> and <Up> or < Down> keys to move the
highlight bar the option desired.
The
diagnostics
program
performs
specialized tests on each of the following when
instructed.
..
Hard disk drive(s)
Floppy disk drive(s)
Keyboard
Video adapter board and monitor
Printer and Communication ports
A-17
SYSTEM BIOS
Diag nostics Option Menu
You
may
note
the
following
in
the
Diagnostics main menu:
The
top
line
with
title
of
the
program,
copyright message and the date and time in
•
military format.
ROMDIAG
Options
Line
with
the
adapters supported by the program.
devices/
They are:
Hard Disk, Floppy disk, Keyboard, Video and
Misc.
Each device option in the diagnostics
option line has its own test option
window
which is displayed when the particular device
is highlighted.
Diagnostics
Option
Window.
Below
the
diagnostics option line, the diagnostics option
menu for that option is displayed.
The Help Window in Reverse Video specifying
usage of keys.
The
bottom
line
with
a
short
Message
describing the test under the Block Cursor.
0
A-18
APPENDIX B
OPERATION AND MAINTENANCE
Preventing a problem is better than having
to fix it after it has happened.
This is where
cleanliness and proper operating procedures come
into play .
ANTI-STATIC PRECAUTION
Some components of the FO X-I I or computer
components are static-sensitive devices and can be
damaged
by static
damage,
the
conductive,
discharges.
device
may
anti-static
bag;
To prevent such
be
wrapped
certain
1n
a
precautions
should be taken before removing the device from
its bags.
When installing or removing any add-on
card, DRAM module or coprocessor, care should be
taken
when handling these
unpaint
metal
example,
the
Touch
devices.
part
of
your
screws
on
the
system
rear
of
unit
the
an
(for
system
unit) with one hand, then hold the component you
are installing on the other hand.
This will place
your body, the component, and the system unit at
the
same
accidental
ground
static
potential,
discharge.
Be
preventing
sure
to
an
handle
circuit boards by the edges only and do not touch
the
component
diskette
frames
drives
to
pins
or
avoid
or
fixed
solder
disk
touching
the
joints.
drives
Grasp
by
circuit
their
board.
Memory chips or co-processor should be held by
their bodies only, not by their pins.
B-1
OPERATION AND MAINTENANCE
KEEPING THE SYSTEM COO L
Airflow
The
is
motherboard
critical
for
contains
components
and they
operation.
Other
proper
many
will generate
add-on
cards
operation.
high-speed
heat
and
drive can also produce a lot of heat.
during
hard
disk
As a result,
the temperature inside the computer system may
be very high.
These boards require cool· air to
prevent a deadly heat build-up.
Be sure that all
cooling vents in the front or sides of the computer
are open and that air circulation is good.
the
clearance at the back of the
Check
computer;
the
power supply contains a fan to blow air out of the
case, make sure the fan is not blocked by cables
or papers.
Don't push your computer flush against
the wall; leave it some breathing space.
Heat can
destroy computer chips.
C LEANING THE "GO LDEN FINGER"
Whenever inserting an add-on card to the
motherboard, make sure that there is no dirt on
the "golden finger" of the add-on card.
If not, the
contact between the "golden finger" and the slot
may be poor and thus causing the add-on cards to
work improperly.
Use a pencil eraser to clean the
"golden finger" if dirt is found.
B-2
•
OPERATION AND MAINTENANCE
CLEANING THE MOTHERBOARD
Because the system is air-cooled, dust can
enter your system through the ventilation slots.
At
least once
computer
and
a
year,
vacuum
accumul ated dust.
take
the
the
cover off
interior
to
your
remove
Use a brush attachment on the
vacuum and carefully go over all exposed parts.
To prevent dust from accumulating on the mother­
board, install ing all mounting plates on the rear
of the case.
Regularly examine your system, and
if necessary, vacuum the interior of the system
with a miniature vacuum.
..
B-3
OPERATION AND MAINTENANCE
THIS PAGE IS INTENTIONALLY LEFT BLANK
•
B-4
APPENDIX C
SYSTEM BOARD LAYOUT
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