ImageDP4 User Manual
User Manual
Version 01.06
DECLARATION OF CONFORMITY.......................................................4
Safety Instructions...............................................................................5
Hardware Installation...........................................................................8
Installing the ImageDP4.......................................................................9
ImageDP4 Video BIOS.......................................................................11
Multi Screen Configuration................................................................14
Appendix 1 - Defining Custom Modes................................................20
Appendix 2 - Screen Order.................................................................21
FCC Compliance ImageDP4
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following two conditions:
This device may not cause harmful interference, and
This device must accept any interference received, including interference that may cause undesired
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a commercial, industrial or business environment. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the manufacturers instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or tele¬vision reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures.
Re-orient or relocate the receiving antenna
Increase the separation between the equipment and the receiver
Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Warning! Any changes or modifications to this product not expressly approved by the manufacturer could void any assurances of safety or performance and could result in violation of Part 15 of
the FCC Rules.
Reprinted from the Code of Federal Regulations #47, part 15.193.1993. Washington DC: Office of the Federal Register, National Archives and Records
Administration, US Government Printing Office.
Per FCC Part 2 Section 2. 1077(a)
Responsible Party Name:
Datapath Limited
Alfreton Road, Derby
Hereby declares the product:
Product Name:
Model Number:
Four Head PCIe Graphics Card
ImageDP4 (DGC170)
Conforms to the following specifications:
FCC Part 15 Subpart b
Class A Digital Device
Supplementary Information:
This device has been shown to be in compliance with and was tested in accordance with the measurement procedures specified in the Standards & Specifications listed above and as indicated in the
measurement report number: TRA-013599GUS1
Representative Persons Name: Tony Jones, Operations Director
Safety Instructions
To prevent damage to your Datapath product or injury to personnel operating the equipment, please
read the following safety precautions prior to operation. These instructions should be made available to
all those who will use and operate Datapath products.
Power Supply
All Datapath products require a mains power supply. This power supply must be disconnected when
equipment is being upgraded or relocated.
Do not expose cables to any liquids; doing so may cause a short circuit which could damage the
equipment. Do not place heavy objects on top of any cables as this can cause damage and possibly lead
to exposed live wires.
All computer equipment should be located in a well ventilated area. All ventilation holes on the computer casing must be kept clear of any obstruction at all times. Failure to do so will result in the system over
heating and damaging your equipment.
Working Environment
The equipment should be located in an environment free from dust, moisture and extreme changes
in temperature and should be placed on a stable and solid work surface. Liquids (hot/cold drinks etc)
should not be placed near the equipment as spillage could cause serious damage.
Gas/Flammable Liquids
Electronic equipment should never be used in the presence of gas or any flammable liquid, doing so
could result in an explosion or serious fire.
Smoke/Unusual Smells
Should you notice smoke or unusual smells being emitted from your computer, turn off and unplug the
system from the mains supply. The system should then be passed to a qualified technician for
inspection. Continued operation could result in personal injury and damage to property.
Maintenance should only be carried out by competent technicians, any Datapath plug-in cards that are
physically damaged should be returned to Datapath for repair using Datapath RMA procedures.
At the end of life all Datapath products should be disposed of as per local laws and regulations dictate.
In UK contact Datapath to arrange disposal. Our WEE registration number is WEEE/AA0005ZR.
The ImageDP4 is based upon a single, powerful graphics processor that is complemented by faster
memory and higher pixel transfer bandwidth over its 16-lane second generation PCIexpress interface.
Up to sixteen ImageDP4 cards can be supported by the Datapath display driver, providing flexible
system configurations up to 64 screens.
DisplayPort connectors allow full-size, locking cables capable of driving next generation displays
DVI support using Datapath DPadapt modules (powered via graphics card)
Up to 40m cable support using Datapath DPextend modules (powered by graphics card).
Card format
Card size
Max output resolution
Max number of cards per system
Graphic card memory
Max current at +3.3V
Max current at +12V
Max Power
Operating temperature
Storage temperature
Relative humidity
Gen 2, x16 lane PCI express
110mm x 177mm (incl heat sync)
4 x 2560 x 1600 @ 60Hz
16 (64 display channels)
512MB total
0.25A (+1.8A when powering four channels of DPextend +
15 watts
0 to 35 deg C / 32 to 96 deg F
-20 to 70 deg C / -4 to 158 deg F
5% to 90% non-condensing
180,000 hrs
3 years
The ImageDP4 PCI Express graphics card supports the display of digital video capture windows. It is ideal
for high end video/data walls, signage or display wall applications.
Gen 2, x16 lane PCI express graphics card
Digital outputs up to 4 x 2560 x 1600 x 32bits/pixel @ 60Hz
Low power
High Performance 2D and 3D graphics
High performance DMA image load (upto 2GB/s)
Support for Windows® Server 2008, and Windows® 7 (Server 2008 or Windows® 7 64-bit required for
greater than 8 screen support).
RGB, SD and HD video window support by adding the Datapath Vision range of capture cards.
Up to 16 cards per system for a maximum of 64 displays. In order to use 3 or more ImageDP4 cards
you must use a system based on the Express9, Express-G3 or an Express11-G3 backplane.
Hardware Installation
This section deals with installing ImageDP4 cards and spreading the Windows desktop across all the
screens. If you are intending to use the ImageDP4 cards with other Datapath products, you should follow
this section to get the Windows desktop working correctly first.
System Requirements
A Pentium PCI Express bus computer with sufficient free PCIe slots.
At least 1GByte of RAM.
Windows® Server 2008, Windows® 7 (Server 2008 or Windows® 7 64-bit required for greater than 8
screen support).
Your packing box should contain the following items:
The ImageDP4 PCIe plug-in card.
Installation CD-ROM
Installing the ImageDP4
It is recommended that all ImageDP4 cards and any Vision cards are installed in the system prior to
installing the drivers. Otherwise as cards are installed the drivers may need to be reinstalled as the card’s
PCI bus numbers change
All plug-in cards are static sensitive and packed in antistatic materials. Please keep the card in its
packaging until you are ready to install.
It is recommended that you do not discard the packing box until you are completely satisfied with
the ImageDP4 card, and it is fully installed and working correctly. We also recommend that you
make note of the serial number of the card in a prominent place before you plug the card into the
computer. This should hasten any query should you need to contact our Technical Support Department. The serial number is displayed on the card and the box label.
Power down the PC (including peripherals), switch off at the mains and disconnect all the
cables connected to the computer, noting the positions for accurate reconnection. Remove the PC
Locate a vacant PCIe (x4 or above) slot for the ImageDP4 on the motherboard and remove the
backing plate (retain all screws). If in doubt consult your motherboard documentation to
correctly identify a PCIe (PCI-express) slot. If the card is forced into a 32 or 64 bit PCI or PCI-X slot it
will be irreparably damaged when the system is powered up and the warranty will be void.
Remove the card from its packaging and secure it firmly into the empty PCIe slot. Extreme care
should be taken when securing the card into the slot as some motherboards may have
components that impede the siting of the card
Screw the card bracket to the back panel of the PC and replace the cover
Connect screens to all the outputs from the card. If there are other graphics devices in the system,
connect screens to them (even if you don’t intend to use all the outputs in your final configuration)
Switch all the screens on then switch the machine on
You should see the boot messages on one of the screens. The screen on which the system will boot is
dependent on how the system is configured and the motherboard BIOS. It is not possible to control
which of the ImageDP4 outputs the system will boot on.
Installing the Display Drivers
Once the ImageDP4 card has been installed and the boot messages are appearing on the correct monitor,
you can start Windows.
Boot the system into Safe Mode then Log on as a user with administrative access rights.
The Found New Hardware Wizard will announce that new hardware has been found.
Do not use the Found New Hardware Wizard to install the ImageDP4 drivers.
Install the display drivers from the Software Installation Suite CD supplied with the ImageDP4 card.
If your final configuration has less than four screens select the number of screens required, otherwise
select four screens.
Restart the machine.
When Windows starts up, the desktop should be spread over all the screens connected to the ImageDP4.
Installing the Additional ImageDP4 Cards
As the number of required screens increase, the likelihood of reaching a system limitation or encountering
a problem increases. The system limitations are the amount of address space available and the capacity of
the power supply.
Please consult Datapath support if you have any problems installing multiple cards.
The amount of current a power supply can deliver on each voltage rail is limited. Often there is also a limit
on the total power.
Each ImageDP4 card requires 0.25A at +3.3V and 1.2A at +12V.
You can calculate the amount of current and the amount of power required for the ImageDP4 cards. For
example, the requirements for a 24-screen system of ImageDP4 cards is calculated as follows:
+3.3V 6 x 0.25A = 1.5A
+12V 6 x 1.2A = 7.2A
( 3.3V x 1.5A ) + ( 12V x 7.2A ) = 91.35W
These are the requirements for the ImageDP4 cards; you must take into account the requirements of all
the other devices in the system.
ImageDP4 Video BIOS
The Intel x86 based architecture limits the amount of legacy I/O space available in a system to 64KB.
Hardware which requires I/O access can be mapped into this 64KB area. An ImageDP4 requests 256 Bytes
of legacy I/O. Unfortunately any PCIe bridge will align this to a 4KB boundary and so the I/O space
allocated to each ImageDP4 is actually 4KB.
64KB ÷ 4kB gives an absolute maximum of 16 ImageDP4 graphics cards. However, other system devices
also require legacy I/O. Often the Network Devices will request some I/O space, and so might the USB
devices and on-board graphics. It is not unusual for there to be I/O space available for only 8 ImageDP4
graphics cards when installing them in a complex server class motherboard.
There are a number of different BIOS types in operation as the computer boots. The “System BIOS” is
resident on the motherboard and is responsible for starting up all the hardware and mapping in the
resources (like the I/O) so that they are available to the CPU. The “Video BIOS” is resident on the
graphics cards. It is responsible for booting the GPU and for informing the System BIOS which resources
will be required for the GPU to operate correctly.
The System BIOS requires an I/O enabled ImageDP4 if it is used as the boot device, i.e. it provides the
graphics output that displays the BIOS boot messages. However the Windows driver for the ImageDP4
has been designed so that it does not require I/O. We can therefore use two types of Video BIOS for the
ImageDP4, one which requests I/O (and which can be used as a boot device) and one which does not. This
allows us to increase the number of ImageDP4 cards which can be used in a system.
To find out more about how to choose the correct BIOS for your requirements and how to update the
BIOS for the ImageDP4, download a PDF from our website by clicking on the link below or select it from
the Read Me file on the Software Installation Suite CD supplied with your ImageDP4 card:
Connecting up to 64 Screens
To connect up to 64 screens to ImageDP4 cards, configure the links as shown in the diagram below:
Card Ordering
The links control the order in which the display driver uses the ImageDP4 cards. Knowing the order in
which the ImageDP4 cards are used is useful when connecting the screens and the outputs from video
Note that if you have not configured your system to boot-up on on-board VGA graphics device or
another plug-in VGA card the system will boot-up on the master head of one of the ImageDP4 cards but it
is not possible to control which output will be used, this is motherboard BIOS dependent.
Insert the ImageDP4 cards into the PCIe slots.
Connect the screens to the cards. The first card should be connected to the first group of four screens; the
second should be connected to the second group of four screens and so on.
Switch the screens on then switch the machine on.
Log on as a user with administrative access rights.
The Found New Hardware Wizard will announce that new hardware has been found. This will happen once
for each slave ImageDP4 card you have added to the system. Do not use the Found New Hardware Wizard
to install the ImageDP4 drivers.
The Windows desktop should appear on the four screens attached to the first card as it did after the
display driver had been installed for the first ImageDP4 card.
You need to install the display driver again. This time you should specify the number of screens you wish
to use.
Restart the machine.
The Windows desktop should now be spread across the number of screens you specified.
DisplayPort Outputs
The Datapath ImageDP4 has four DisplayPort conectors which allow full size, locking cables capable of
driving next generations displays. When used in conjunction with the Datapath DPextend modules
(powered via the ImageDP4) cable lengths of up to 30m can be achieved.
The ImageDP4 outputs are numbered as follows:
Multi Screen Configuration
To change the display settings for the ImageDP4 cards, use the Display Properties dialog in the Control
If you have more than one graphics device in your machine, the Display Settings allow you to control
which graphics devices are used and what their position on the desktop is. There should be a single
monitor icon representing all of the ImageDP4 cards and a monitor icon for each additional graphics
device in the system (there is a limit to the number of monitor icons that are displayed).
To change other properties of the ImageDP4 display, select the ImageDP4 monitor icon, click on the
Advanced settings and go to the TWIN tab.
Resolution per Screen:
Changing the resolution may alter the colour palette settings, so check that it is correct before
clicking OK or Apply.
Colour Palette:
Select the number of colours you want to use.
Refresh Rate:
Use the drop down arrow to select a refresh rate for the desktop. Only the refresh rates available
at the selected resolution and colour depth are displayed. The maximum settings are restricted to
the capabilities of the screens connected to the system.
Source of Mode:
When the TWIN tab is selected, the display driver reads the EDID information from each monitor and
reads the Registry to find detailed display timing information.
The Source of Mode group box shows which mode sources are available for the selected resolution and
colour depth.
The Source of Mode has 4 options.
Monitor timing information from the display driver’s internal tables.
Monitor timing information from the Registry. (See Appendix 1: Defining Custom Modes for details)
Monitor (Master)
Monitor timing information from the monitor attached to output 1 of the Master ImageDP4 is used for
all outputs.
Monitor (Each)
The monitor timing information from each monitor is used for the output connected to that monitor.
No. Screens
Change the number of screens the display driver uses. You should always install the driver (using install.
exe) for the maximum number of screens you want to use.
Screen Arrangement
Use the drop down menu to select the type of screen arrangement you require. The illustration in the
Monitor Configuration box will reflect your choice.
Force DVI Output
If set, Force DVI Output limits the display modes available to those displayable via Single-Link DVI
If clear, this allows display modes greater than 165MHz, for example 2560x1600 @ 60Hz.
Prune Modes
Enabling this check box limits the resolutions displayed in the resolution box to those that are
supported by all of the screens attached to the ImageDP4 card’s active outputs. This information is
read from the monitor EDIDs when the TWIN tab is opened. If the state of this check box is changed
then the resolution control is updated.
When you click on OK or Apply the following dialog is displayed:
This dialog gives you the option to accept the changes or restore the previous display settings. The
display will return to the previous settings after 15 seconds should Yes or No not be selected.
Always close all video window applications (including Wall Control applications connected locally
or remotely to the system) before performing any operation that modifies the settings of any attached display. Failure to do so could result in the machine locking up and requiring a reboot.
Datapath Limited
Datapath has a long and very successful history in the computer graphics industry. Datapath has been
designing and supplying high performance, high quality graphics display systems to the world’s largest and most demanding companies and institutions since 1982. Datapath was one of the founding
companies of multi-screen Windows acceleration using single and multi board solutions. Now using
the very latest display technology Datapath offers some of the world’s leading multi screen graphics
accelerators for the most demanding applications.
As new technology advances, so we at Datapath improve the performance and functionality of both
our hardware and software to give our customers more. Following a continuous development program, we pride ourselves on our support and responsive nature towards all our customers and their
changing needs. As more sophisticated equipment and techniques become readily available, so we
are there to exploit the power and potential that this technology presents.
Technical Support
Registered users can access our technical support line using, email, and the Support page on the Datapath Web Site, usually with a response within 24 hours (excluding weekends).
Via Email
Send an email to with as much information about your system as possible.
To enable a swift response we need to know the following details:
Specification of the PC - including processor speed
Operating System
Application Software
Datapath Hardware / Software
The exact nature of the problem - and please be as specific as possible.
Please quote version and revision numbers of hardware and software in use wherever possible.
Copyright Statement
© Datapath Ltd., England.
Datapath Limited claims copyright on this documentation. No part of this documentation may be
reproduced, released, disclosed, stored in any electronic format, or used in whole or in part for any
purpose other than stated herein without the express permission of Datapath Limited.
Whilst every effort is made to ensure that the information contained in this User Manual is correct,
Datapath Limited make no representations or warranties with respect to the contents thereof, and
do not accept liability for any errors or omissions. Datapath reserves the right to change specification
without prior notice and cannot assume responsibility for the use made of the information supplied.
All registered trademarks used within this documentation are acknowledged by Datapath Limited
UK Headquarters and Main Sales Office
Datapath Ltd.,
Bemrose House,
Bemrose Park,
Wayzgoose Drive
Derby, DE21 6, UK
Tel: +44 (0) 1332 294441
Fax: +44 (0) 1332 290667
Appendix 1 - Defining Custom Modes
Defining custom modes is carried out using the Custom Mode Utilities tool that can be found on the
Datapath CD. The latest version may also be downloaded from the Datapath website:
The Custom Modes tool is a utility for defining custom modes that can be generated by the ImageDP4
graphics card. The custom modes tool must be used on a system where the active display driver supports
custom modes. To generate a custom mode the following values must be entered into the utility
application dialog box:
X Resolution - The active display width in pixels.
Y Resolution - The active display height in lines.
Refresh - The refresh rate displayed in the Display Properties dialog. Also used for calculating the
dot-clock if no value is provided.
Horizontal Front Porch - The horizontal front porch in pixels.
Horizontal Sync Width - The H-Sync width in pixels.
Horizontal Back Porch - The horizontal back porch in pixels.
Vertical Front Porch - The vertical front porch in lines.
Vertical Sync Width - The v-sync width in lines.
Vertical Back Porch - The vertical back porch in lines.
Horizontal Sync Polarity - 0 = negative, 1 = positive
vertical Sync Polarity - 0 = negative, 1 = positive.
Dot Clock (optional) - The pixel dot-clock in KHz. This is calculated from the Refresh rate if not
If a new mode is created or an existing one amended, then the Display Properties dialog must be closed
and re-opened to ensure the new values are refreshed in the display driver.
Appendix 2 - Screen Order
Connection of Screens
The first card to be initialized generates the picture for the top left monitor in the wall of screens, plus the
three adjacent screens. The second card drives the next four screens and so on. This sounds simple, but
nevertheless, can be confusing when trying to determine how to assign monitor video cables to the
ImageDP4 out¬puts.
Changing the Order of the Screens
Changing the order in which the screens appear is done using the Wall Control application.
Select Screen Order from the Wall Control Configure menu and in the displayed dialog, click on the screens
sequentially to establish the order you want.
The new screen order will not be applied until the Wall Control server is re-booted.
Additional ImageDP4 Cards 10
power requirements 10
Power Supply 5
Prune Modes 16
Boot the system 10
Refresh Rate 14
Relative humidity 6
Resolution per Screen 14
Cables 5
Card format 6
Card Ordering 12
Card size 6
Changing the Order of the Screens 21
Colour Palette 15
colour palette settings 15
configure the links 12
Connection of Screens 21
Copyright Statement 18
Screen Arrangement 15
Source of Mode 14, 15
Specifications 6
Storage temperature 6
Support for Windows 7
System Requirements 8
Defining Custom Modes 20
Display Drivers 10
display settings 14
Disposal 5
Force DVI Output 16
UK Headquarters 18
Unpacking 8
Graphic card memory 6
Technical Support 17
TWIN tab 15
Ventilation 5
Video BIOS 11
ImageDP4 Video BIOS 11
Installation 9
Installation CD-ROM 8
Warning 16
Warranty 6
Main Sales Office 19
Max current 6
Max number of cards per system 6
Max output resolution 6
Max Power 6
Operating temperature 6
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