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Table of contents
- 12 1 Product Overview
- 13 Key Components
- 13 VIA Nano 1.2 GHz NanoBGA2 Processor
- 13 VIA VX855 Media System Processor
- 14 Mainboard Specifications
- 15 EPIA-P820 Layout
- 15 Top Side
- 16 Bottom Side
- 17 P820-A I/O Module Layout
- 17 Front View
- 17 Top View
- 17 Bottom View
- 18 Development Kit Accessories
- 18 DC-In Cable
- 18 Power Brick
- 20 2 Onboard Connectors, Slots and Pin Headers
- 21 Top Side Connectors
- 21 VIA Nano 1.2 GHz processor with Heatsink
- 21 System Fan connector: FAN
- 22 DC-In Power connector: PWR
- 22 Serial ATA Power connector: PWR
- 23 Serial ATA connector: SATA
- 23 port connector: HDMI
- 24 IDE pin header: IDE
- 25 Ethernet LAN pin header: CN
- 26 VGA and USB pin header: VGA_USB
- 27 Front Audio pin header: CN
- 28 USB pin header: CN
- 29 Front Panel and PS/2 KBMS pin header: CN
- 30 LPC, SMBus and Digital I/O pin header: CN
- 31 UART port 2: J
- 32 Bottom Side Connector
- 32 UART port 1: J
- 33 LVDS Panel connector: LVDS
- 34 External Battery: BAT
- 35 Memory Module Installation
- 37 Pin Header and Connector Vendor Lists
- 38 3 Onboard Jumpers
- 39 Clear CMOS jumper: JM
- 40 LCD Panel Power Selector: JM
- 40 LCD Backlight Power Selector: JM
- 42 4 P820-A I/O Module Installation
- 43 P820-A Installation Procedure
- 46 5 BIOS Setup
- 47 Entering the BIOS Setup Menu
- 47 Control Keys
- 48 Getting Help
- 49 Main Menu
- 49 AMIBIOS
- 49 Processor
- 49 System Memory
- 49 System Time
- 49 System Date
- 50 Advanced Settings
- 50 CPU Configuration
- 50 IDE Configuration
- 50 ACPI Configuration
- 50 APM Configuration
- 50 Spread Spectrum Configuration
- 50 USB Configuration
- 51 CPU Configuration
- 51 CMPXCHG8B instruction support
- 51 Nano CPU Thermal Monitor Adjust
- 52 IDE Configuration
- 52 Parallel ATA IDE Controller
- 52 Hard Disk Write Protect
- 52 IDE Detect Time Out (Sec)
- 52 ATA(PI) 80Pin Cable Detection
- 53 IDE Drives
- 53 Primary IDE Master
- 53 Primary IDE Slave (SATA Device)
- 53 LBA/Large Mode
- 54 Block (Multi-Sector Transfer)
- 54 PIO Mode
- 54 DMA Mode
- 54 S.M.A.R.T
- 54 32Bit Data Transfer
- 55 ACPI Settings
- 55 General ACPI Configuration
- 55 Advanced ACPI Configuration
- 55 Chipset ACPI Configuration
- 56 General ACPI Configuration
- 56 Suspend Mode
- 56 Repost Video on S3 Resume
- 57 Advanced ACPI Configuration
- 57 ACPI Version Features
- 57 ACPI APIC Support
- 57 AMI OEMB Table
- 57 Headless Mode
- 58 Chipset ACPI Configuration
- 58 USB Device Wakeup Function
- 59 APM Configuration
- 59 Power Management / APM
- 59 Power Button Mode
- 59 Suspend Power Saving Type
- 59 Restore on AC / Power Loss
- 59 Manual Throttle Ratio
- 60 System Thermal
- 60 Standby Time Out
- 60 Suspend Time Out
- 60 Hard Disk Time Out (Minute)
- 60 Green PC Monitor Power State
- 60 Video Power Down Mode
- 60 Hard Disk Power Down Mode
- 60 Display Activity
- 60 Monitor IRQ
- 61 Resume on Ring
- 61 Resume on PME
- 61 Resume On PS/2 KBC
- 61 Wake-up Key
- 61 Resume on PS/2 Mouse
- 61 Resume on RTC Alarm
- 62 Spread Spectrum Configuration
- 63 USB Configuration
- 63 USB 1.1 Ports Configuration
- 63 USB 2.0 Ports Enable
- 63 USB Device Mode Enable
- 63 Legacy USB Support
- 63 USB 2.0 Controller Mode
- 63 BIOS EHCI Hand-Off
- 64 Advanced PCI/PnP Settings
- 64 Clear NVRAM
- 64 Plug & Play O/S
- 64 PCI Latency Timer
- 64 Allocate IRQ to PCI VGA
- 64 Palette Snooping
- 65 PCI IDE BusMaster
- 65 Off Board PCI/ISA IDE Card
- 65 DMA Channel
- 65 Reserved Memory Size
- 66 Boot Settings
- 66 Boot Settings Configuration
- 66 Boot Device Priority
- 67 Boot Settings Configuration
- 67 Quick Boot
- 67 Display Logo
- 67 AddOn ROM Display Mode
- 67 Bootup Num-Lock
- 67 PS/2 Mouse Support
- 67 Wait For ‘F1’ If Error
- 67 Hit ‘DEL’ Message Display
- 68 Interrupt 19 Capture
- 69 Boot Device Priority
- 69 1st Boot Device
- 70 Security Settings
- 70 Change Supervisor Password
- 70 Change User Password
- 70 Boot Sector Virus Protection
- 71 Advanced Chipset Settings
- 71 North Bridge VIA VX855 Configuration
- 71 South Bridge VIA VX855 Configuration
- 72 North Bridge VIA VX855 Configuration
- 72 Software Reset E2 Issue
- 72 Change DCLK using RDCKM
- 72 Dynamic CKE
- 72 NB Performance Register
- 72 NB Energy Saving Register
- 73 OnChip VGA Configuration
- 73 VGA Frame Buffer Size
- 73 CPU Direct Access Frame Buffer
- 73 Select Display Device
- 73 Panel Type
- 73 Dithering
- 73 Backlight Control
- 74 South Bridge VIA VX855 Configuration
- 74 Parallel Channel Enable
- 74 ISA Master Support
- 74 High Definition Audio
- 74 Enable Embedded COM
- 74 PCI Debug Master Mode
- 74 SMBus Multi-Master
- 74 PCI VCC33 Leakage Patch
- 75 PCI Delay Transaction
- 75 WATCH-DOG
- 76 Exit Options
- 76 Save Changes and Exit
- 76 Discard Changes and Exit
- 76 Discard Changes
- 76 Load Optimal Defaults
- 78 6 Driver Installation
- 79 Microsoft Driver Support
- 79 Linux Driver Support