VIA Technologies EPIA-P900 User Manual
USER MANUAL
EPIA-P900
Pico-ITX embedded board
1.10-11012011-182900
Copyright
Copyright © 2011 VIA Technologies Incorporated. All rights reserved.
No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language,
in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise without the prior written
permission of VIA Technologies, Incorporated.
Trademarks
All trademarks are the property of their respective holders.
Disclaimer
No license is granted, implied or otherwise, under any patent or patent rights of VIA Technologies. VIA Technologies makes no
warranties, implied or otherwise, in regard to this document and to the products described in this document. The information
provided in this document is believed to be accurate and reliable as of the publication date of this document. However, VIA
Technologies assumes no responsibility for the use or misuse of the information in this document and for any patent infringements
that may arise from the use of this document. The information and product specifications within this document are subject to
change at any time, without notice and without obligation to notify any person of such change.
VIA Technologies, Inc. reserves the right the make changes to the products described in this manual at any time without prior
notice.
Regulatory Compliance
FCC-A Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC
rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his
personal expense.
Notice 1
The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to comply with the emission limits.
Tested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
Battery Recycling and Disposal
Only use the appropriate battery specified for this product.
Do not re-use, recharge, or reheat an old battery.
Do not attempt to force open the battery.
Do not discard used batteries with regular trash.
Discard used batteries according to local regulations.
Safety Precautions
Always read the safety instructions carefully.
Keep this User's Manual for future reference.
All cautions and warnings on the equipment should be noted.
Keep this equipment away from humidity.
Lay this equipment on a reliable flat surface before setting it up.
Make sure the voltage of the power source and adjust properly 110/220V before connecting
the equipment to the power inlet.
Place the power cord in such a way that people cannot step on it.
Always unplug the power cord before inserting any add-on card or module.
If any of the following situations arises, get the equipment checked by authorized service
personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment has not worked well or you cannot get it work according to User's Manual.
The equipment has dropped and damaged.
The equipment has obvious sign of breakage.
Do not leave this equipment in an environment unconditioned or in a storage temperature
above 60°C (140°F). The equipment may be damaged.
Do not leave this equipment in direct sunlight.
Never pour any liquid into the opening. Liquid can cause damage or electrical shock.
Do not place anything over the power cord.
Do not cover the ventilation holes. The openings on the enclosure protect the equipment
from overheating
EPIA-P900 User Manual
Box Contents and Ordering Information
EPIA-P900-10
1 x EPIA-P900 embedded board (with VIA Eden™ X2 U4200 @ 1.0+ GHz NanoBGA2
processor)
1 x P830-A I/O card (pre-assembled companion card)
1 x SATA data cable (P/N: 99G33-240103)
1 x SATA power cable (P/N: 99G33-020985)
1 x DC-in cable (P/N: 99G33-250024)
1 x Driver CD (P/N: 99H64-021428-100)
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EPIA-P900 User Manual
Table of Contents
1. Product Overview................................................................................................ 1
1.1.
Key Features and Benefits........................................................................... 2
1.1.1. VIA Eden™ X2 Processor ....................................................................... 2
1.1.2. VIA VX900H Chipset.............................................................................. 2
1.1.3. Expansion Option ................................................................................... 2
1.2.
Product Specifications................................................................................. 3
1.3.
Layout Diagram ............................................................................................. 5
1.4.
Product Dimensions..................................................................................... 7
1.5.
Height Distribution....................................................................................... 8
2. I/O Interface..........................................................................................................9
2.1.
External I/O Ports ......................................................................................... 9
2.1.1. HDMI Port ............................................................................................... 10
2.1.2. VGA Port................................................................................................. 11
2.1.3. USB 2.0 Port ........................................................................................... 12
2.1.4. RJ45 LAN port: Gigabit Ethernet ....................................................... 12
2.2.
Onboard Connectors ................................................................................13
2.2.1. LVDS Connector.................................................................................... 13
2.2.2. VGA and USB combination pin header ...........................................14
2.2.3. SATA Connectors .................................................................................15
2.2.4. SATA Power Connector ...................................................................... 16
2.2.5. USB and USB Device Combination Pin Header.............................. 17
2.2.6. LAN pin header .....................................................................................18
2.2.7. UART Connectors ................................................................................. 19
2.2.8. LPC, SMBus, and GPIO Combination Pin Header .......................... 20
2.2.9. SPI Flash Connector.............................................................................. 21
2.2.10. CMOS Battery Connector.................................................................... 22
2.2.11. Front Panel and PS2 Combination Pin Header................................. 23
2.2.12. Front Audio Pin Header ....................................................................... 24
2.2.13. CPU Fan Connector .............................................................................. 25
2.2.14. DC-In Power Connector ......................................................................26
3. Jumpers ............................................................................................................... 27
3.1.
Clear CMOS Jumper.................................................................................. 27
3.2.
Panel Power Select Jumper .....................................................................28
3.3.
Backlight Power Select Jumper............................................................... 29
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EPIA-P900 User Manual
4. Expansion Slots.................................................................................................. 31
4.1.
PCIe and USB Combination Connector ................................................. 31
4.2.
DDR3 SODIMM Memory Slot.................................................................. 33
4.2.1. Installing a Memory Module ..............................................................34
4.2.2. Removing a Memory Module............................................................. 36
5. Hardware Installation ........................................................................................ 37
5.1.
Removing and Installing the P830-A Companion Card..................... 37
5.1.1. Removing the P830-A ..........................................................................37
5.1.2. Installing the P830-A............................................................................ 39
5.2.
Installing the P830-B Expansion Card.................................................... 41
5.3.
Installing into a Chassis............................................................................. 42
5.3.1. Suggested minimum chassis dimensions ......................................... 42
5.3.2. Suggested minimum chassis height................................................... 43
5.3.3. Suggested keepout areas .................................................................... 44
6. BIOS Setup Utility.............................................................................................. 45
6.1.
Entering the BIOS Setup Utility............................................................... 45
6.2.
Control Keys................................................................................................ 45
6.3.
Getting Help................................................................................................ 45
6.4.
System Overview........................................................................................ 46
6.4.1. AMIBIOS.................................................................................................. 46
6.4.2. Processor................................................................................................. 46
6.4.3. System Memory ..................................................................................... 46
6.4.4. System Time ........................................................................................... 46
6.4.5. System Date............................................................................................ 47
6.5.
Advanced Settings ..................................................................................... 48
6.5.1. CPU Configuration ................................................................................49
6.5.2. SATA Configuration.............................................................................. 50
6.5.3. SuperIO Configuration ......................................................................... 52
6.5.4. Hardware Health Configuration ........................................................53
6.5.5. ACPI Configuration ............................................................................... 54
6.5.6. APM Configuration................................................................................ 55
6.5.7. Event Log Configuration ...................................................................... 59
6.5.8. Spread Spectrum Configuration ........................................................60
6.5.9. USB Configuration................................................................................. 61
6.5.10. CRB Configuration................................................................................. 62
6.6.
Boot Settings ............................................................................................... 65
6.6.1. Boot Settings Configuration ................................................................ 65
6.6.2. Boot Device Priority.............................................................................. 67
6.7.
Security Settings ......................................................................................... 68
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EPIA-P900 User Manual
6.7.1. Change Supervisor Password ............................................................. 68
6.7.2. Change User Password ........................................................................ 68
6.7.3. Clear User Password ............................................................................68
6.7.4. Password Check .................................................................................... 69
6.8.
Exit Options.................................................................................................70
6.8.1. Save Changes and Exit ......................................................................... 70
6.8.2. Discard Changes and Exit.................................................................... 70
6.8.3. Discard Changes.................................................................................... 70
6.8.4. Load Optimal Defaults ........................................................................ 70
7. Driver Installation...............................................................................................71
7.1.
Microsoft Driver Support.......................................................................... 71
7.2.
Linux Driver Support.................................................................................. 71
Appendix A. Power Consumption Report...............................................................73
A.1. EPIA-P900-10....................................................................................................... 73
A.1.1. Burn-in 3DMark06, 1280 x 1024 (Demo mode)................................... 73
A.1.2. PassMark Burn-in (CPU usage = 100%).................................................. 73
A.1.3. Power DVD 10 to Player H.264 1080i_10M Movie ............................ 74
A.1.4. Power DVD 10 to Player MPEG2 1080P_40M Movie............................. 74
A.1.5. Idle at Windows 7 x64 .............................................................................. 74
A.1.6. Suspend S1................................................................................................... 74
A.1.7. Suspend S3................................................................................................... 74
A.1.8. Suspend S4................................................................................................... 75
A.1.9. Suspend S5................................................................................................... 75
Appendix B. Pin Header and Connector Vendor Lists........................................... 77
B.1. EPIA-P900 Mainboard ........................................................................................77
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Lists of Figures
Figure 1: Layout diagram of the EPIA-P900 mainboard (top and bottom view) 5
Figure 2: Mounting holes and dimensions of the EPIA-P900 .................................. 7
Figure 3: Height distribution of the EPIA-P900 mainboard...................................... 8
Figure 4: External I/O ports............................................................................................. 9
Figure 5: HDMI port pinout diagram........................................................................... 10
Figure 6: VGA port pinout diagram............................................................................. 11
Figure 7: USB port pinout diagram ..............................................................................12
Figure 8: Gigabit Ethernet port pinout diagram ....................................................... 12
Figure 9: LVDS connector.............................................................................................. 13
Figure 10: VGA and USB combination pin header ..................................................14
Figure 11: SATA connectors ......................................................................................... 15
Figure 12: SATA power connector.............................................................................. 16
Figure 13: USB and USB Device pin header ..............................................................17
Figure 14: LAN pin header ............................................................................................ 18
Figure 15: UART connectors .........................................................................................19
Figure 16: LPC, SMBus and GPIO combination pin header ................................... 20
Figure 17: SPI connector ................................................................................................21
Figure 18: CMOS battery connector ...........................................................................22
Figure 19: Front panel and PS2 combination pin header....................................... 23
Figure 20: Front audio pin header ...............................................................................24
Figure 21: CPU fan connector....................................................................................... 25
Figure 22: DC-In power connector .............................................................................26
Figure 23: CLEAR CMOS jumper .................................................................................27
Figure 24: LVDS panel power select jumper............................................................ 28
Figure 25: Backlight power select jumper................................................................. 29
Figure 26: PCIe and USB combination connector ....................................................31
Figure 27: DDR3 SODIMM memory slot .................................................................... 33
Figure 28: Inserting the memory module................................................................... 34
Figure 29: Locking the memory module .................................................................... 34
Figure 30: Installing memory thermal pad ................................................................35
Figure 31: Disengaging the SODIMM locking clips ................................................. 36
Figure 32: Removing the memory module ................................................................ 36
Figure 33: Unscrewing the P830-A companion card............................................... 37
Figure 34: Pulling the P830-A companion card ....................................................... 38
Figure 35: Aligning the P830-A companion card..................................................... 39
Figure 36: Connecting P830-A companion card ......................................................40
Figure 37: Securing the P830-A companion card .................................................... 40
Figure 38: Installing the P830-B expansion card ...................................................... 41
Figure 39: Suggested minimum chassis dimensions ................................................ 42
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EPIA-P900 User Manual
Figure 40: Suggested minimum internal chassis ceiling height............................. 43
Figure 41: Suggested keepout areas ........................................................................... 44
Figure 42: Illustration of the Main menu screen....................................................... 46
Figure 43: Illustration of the Advanced Settings screen......................................... 48
Figure 44: Illustration of the CPU Configuration screen .........................................49
Figure 45: Illustration of SATA Configuration screen ............................................. 50
Figure 46: Illustration of SATA-1 Primary IDE screen .............................................50
Figure 47: Illustration of SuperIO Configuration screen......................................... 52
Figure 48: Illustration of Hardware Health Configuration screen ........................ 53
Figure 49: Illustration of ACPI Configuration screen ...............................................54
Figure 50: Illustration of APM Configuration screen ...............................................55
Figure 51: Illustration of Event Log Configuration screen ...................................... 59
Figure 52: Illustration of Spread Spectrum Configuration screen ........................ 60
Figure 53: Illustration of USB Configuration screen ................................................ 61
Figure 54: Illustration of CRB Configuration screen................................................. 62
Figure 55: Illustration of Boot Settings screen.......................................................... 65
Figure 56: Illustration of Boot Settings Configuration ............................................. 65
Figure 57: Illustration of Boot Device Priority........................................................... 67
Figure 58: Illustration of Security Settings screen.................................................... 68
Figure 59: Illustration of Exit Options screen ........................................................... 70
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EPIA-P900 User Manual
Lists of Tables
Table 1: Layout diagram description table of the EPIA-P900 mainboard............ 6
Table 2: Layout diagram description table of external I/O ports.......................... 9
Table 3: HDMI port pinout ........................................................................................... 10
Table 4: VGA port pinout ............................................................................................. 11
Table 5: USB 2.0 port pinout........................................................................................ 12
Table 6: Gigabit Ethernet port pinout ........................................................................12
Table 7: Gigabit Ethernet LED color definition ........................................................ 12
Table 8: LVDS connector pinout ................................................................................. 13
Table 9: VGA and USB combination pin header pinout ........................................ 14
Table 10: SATA connector pinouts............................................................................. 15
Table 11: SATA power connector pinout .................................................................16
Table 12: USB and USB Device pin header pinout .................................................17
Table 13: LAN pin header pinout................................................................................ 18
Table 14: UART connector pinouts ............................................................................19
Table 15: LPC, SMBus and GPIO combination pin header pinout....................... 20
Table 16: SPI connector pinout ...................................................................................21
Table 17: CMOS battery connector pinout ..............................................................22
Table 18: Front panel and combination pin header pinout ..................................23
Table 19: Front audio pin header pinout................................................................... 24
Table 20: CPU fan connector pinout .......................................................................... 25
Table 21: DC-In power connector pinout ................................................................. 26
Table 22: CLEAR CMOS jumper settings ................................................................... 27
Table 23: LVDS panel power select jumper settings ............................................. 28
Table 24: Backlight power select jumper settings ..................................................29
Table 25: PCIe and USB combination connector pinout ....................................... 32
Table 26: Serial port addresses and IRQs ................................................................. 52
Table 27: Panel types resolution................................................................................. 63
Table 28: EPIA-P900 pin header and connector vendor lists ............................... 77
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EPIA-P900 User Manual
1. Product Overview
The VIA EPIA-P900 Pico-ITX mainboard is a compact native x86 mainboard
optimized for systems in embedded and multimedia applications. It can also
be used for various domain applications such as medical PC, industrial PC, and
etc. The mainboard is based on the VIA VX900H Unified Digital Media IGP
chipset that features the VIA Chrome9™ HD with 2D/3D graphics and video
accelerators for rich digital media performance.
The VIA EPIA-P900 mainboard has integrated HDMI port and comes with preinstalled I/O companion card called P830-A, and an optional P830-B
expansion card. The P830-A I/O companion card is connected through
onboard pin headers carrying the back panel I/O such as VGA port, RJ45 LAN
port and USB 2.0 ports. The P830-B expansion card provides two Mini PCIe x1
slots.
The VIA EPIA-P900 has a powerful, secure, and efficient VIA Eden™ X2 dual
core processor. The VIA Eden™ X2 processor includes the VIA AES Security
Engine, VIA CoolStream™ Architecture and VIA PowerSaver™ Technology.
The VIA EPIA-P900 includes one 1066 MHz DDR3 SODIMM slot that support
up to 4 GB memory size. The VIA EPIA-P900 provides support for high fidelity
audio with its included VIA VT2021 High Definition Audio codec. In addition it
supports two SATA 3Gb/s storage devices and fully compatible with
Microsoft® and Linux operating systems.
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EPIA-P900 User Manual
1.1. Key Features and Benefits
1.1.1. VIA Eden
™
X2 Processor
The VIA Eden X2 is a 64-bit superscalar x86 dual core processor based on a
40 nanometer process technology. Packed into an ultra compact NanoBGA2
package (measuring 21mm x 21mm), it delivers an energy-efficient yet
powerful performance, with cool and quiet operation. The VIA Eden X2 is
ideal for embedded system applications such as industrial PCs, test machines,
measuring equipment, digital signage, medical PCs, monitoring systems,
gaming machines, in-vehicle entertainment, etc.
Note:
For Windows 7 and Windows Server 2008 R2 users only:
If encounter the issue such as the operating system does recognize the VIA Dual-Core CPU as two
processors instead of one processor with two cores. Download and install the hotfix released by
Microsoft to address this issue. The downloadable hotfix is available at
http://support.microsoft.com/kb/2502664
1.1.2. VIA VX900H Chipset
The VIA VX900H Unified Digital Media Chipset is designed to enable high
quality digital video streaming and DVD playback in a new generation of
fanless, small form factor PCs and IA devices. The VIA VX900H features VIA
Chrome9™ HD with 2D/3D graphics and video acceleration, DDR3 1066/800
support, motion compensation and dual display support to ensure a rich
overall entertainment experience.
1.1.3. Expansion Option
The EPIA-P900 further proves its versatility by providing an expansion option
connector that uses a “PCIe and USB 2.0 combinations board-to-board
connector” for P830-B expansion card. The P830-B expansion card provides
two Mini-PCIe x1 slots.
The companies using the EPIA-P900 with P830-B expansion card obtain the
maximum benefits and enable to slowly roll out upgrades as necessary
instead of having to replace everything all at once.
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EPIA-P900 User Manual
1.2. Product Specifications
Processor
VIA Eden X2 1.0+ GHz NanoBGA2 (for EPIA-P900-10 SKU)
Supports 800MHz Front Side Bus
X86 and x64 compatible
21 mm x 21 mm FCBGA
Chipset
VIA VX900H Unified Digital Media IGP chipset
31 mm x 31 mm FCBGA
Graphics
Integrated VIA Chrome9™ HD 3D/2D AGP graphics
MPEG2, WMV9/VC1, H.264 Full HD video decoder
System Memory
1 x SODIMM slot supporting DDR3 1066/800
Supports up to 4 GB memory size
Onboard Peripherals
Serial ATA
Supports up to 3 Gb/s
Onboard LAN
VIA VT6130 PCIe Gigabit Ethernet controller
Onboard Audio
VIA VT2021 High Definition Audio Codec
Onboard Super I/O
Fintek F81801U-I Super I/O controller
Onboard I/O Connectors
1 x USB 2.0 pin headers for 5 addition USB 2.0 ports and 1 USB 2.0 device port
1 x Single-channel 18/24-bit LVDS panel connector
1 x VGA and USB combination pin header (supports two USB 2.0 ports and one VGA port)
1 x Gigabit LAN pin header
1 x LPC, SMBus and DIO (GPI x4, GPO x4) combination pin header
1 x Front panel and PS2 combination pin header
1 x Audio pin header for Line-Out, Line-In and MIC-In
1 x PCIe and USB combination board-to-board connector for P830-B expansion module
2 x SATA connectors
1 x SATA power connector
1 x CPU fan connector
2 x UART pin headers
1 x SPI connector
1 x LVDS panel power selector jumper (5V/3.3V)
1 x LVDS backlight voltage selector jumper (5V/12V)
1 x CMOS external battery connector
1 x DC-In power connector (+12V±5%)
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EPIA-P900 User Manual
Back Panel I/O
1 x HDMI port
1 x VGA port (on P830-A)
1 x GigaLAN port (on P830-A)
2 x USB 2.0 ports (on P830-A)
BIOS
AMI BIOS
8 Mbit SPI flash memory
Supported Operating System
Microsoft Windows 7
Microsoft Windows Embedded Standard/Compact
Linux
System Monitoring & Management
Wake-on-LAN
Keyboard-Power-on, Timer-Power-on
System Power Management
AC power failure recovery
Watchdog Timer
Smart Fan for CPU fan
Operating Conditions
Operating Temperature
0°C up to 60°C
Operating Humidity
0% ~ 95% (relative humidity; non-condensing)
Form Factor
Pico-ITX (10 cm x 7.2 cm)
Compliance
CE
FCC
RoHS
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EPIA-P900 User Manual
1.3. Layout Diagram
Figure 1: Layout diagram of the EPIA-P900 mainboard (top and bottom view)
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EPIA-P900 User Manual
Item Description
1 FAN1: CPU fan
2 CN5: LPC, SMBus, and GPIO combination pin header
3 CN4: Front panel and PS2 combination pin header
4 CN2: USB, and USB Device combination pin header
5 CN1: Audio pin header
6 PWR2: SATA power connector
7 J1: UART port 2
8 SATA1, SATA2: SATA 3Gb/s connectors
9 CN6: PCIe and USB 2.0 combination connector
10 CN3: LAN pin header
11 JM1: Clear CMOS jumper
12 HDMI1: HDMI port
13 VGA_USB1: VGA and USB combination pin header
14 VX900H chipset
15 JM2 LCD power selector
16 JM3: Backlight power selector
17 PWR1: DC-in power connector
18 VIA Eden X2 CPU
19 J2: UART port 1
20 SODIMM1: DDR3 SODIMM slot
21 LVDS1: LVDS connector
22 BAT1: CMOS battery connector
23 J3: SPI connector
Table 1: Layout diagram description table of the EPIA-P900 mainboard
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1.4. Product Dimensions
100.00
82.00
66.60
25.00
8.20
1.87
15.10
8.10
13.38
Figure 2: Mounting holes and dimensions of the EPIA-P900
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1.5. Height Distribution
Figure 3: Height distribution of the EPIA-P900 mainboard
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2. I/O Interface
The VIA EPIA-P900 has a wide selection of interfaces. It includes a selection of
frequently used ports as part of the external I/O coastline.
2.1. External I/O Ports
Figure 4: External I/O ports
Item Description
1 VGA1: VGA port (on P830-A)
2 USB1, USB2: USB 2.0 ports (on P830-A)
3 HDMI1: HDMI port
4 RJ1: Gigabit LAN port (on P830-A)
Table 2: Layout diagram description table of external I/O ports
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2.1.1. HDMI Port
The integrated 19-pin HDMI port uses an HDMI Type A receptacle connector
as defined in the HDMI 1.2 specification. The HDMI port is for connecting to
HDMI displays. The pinout of the HDMI port is shown below.
Figure 5: HDMI port pinout diagram
Pin Signal Pin Signal
1 HDMITX2+ 2 GND
3 HDMITX2- 4 HDMITX1+
5 GND 6 HDMITX17 HDMITX0+ 8 GND
9 HDMITX0- 10 HDMITXC+
11 GND 12 HDMITXC13 NC 14 NC
15 SPCLK 16 SPDAT
17 GND 18 PVDD5
19 -DP1_HPD
Table 3: HDMI port pinout
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EPIA-P900 User Manual
2.1.2. VGA Port
The 15-pin VGA port uses a female DE-15 connector. The VGA port is for
connecting to analog displays. The pinout of the VGA port is shown below.
Figure 6: VGA port pinout diagram
Pin Signal Pin Signal
1 VGA-R 9 +5VCRT
2 VGA-G 10 Ground
3 VGA-B 11 NC
4 NC 12 VGA-SPD
5 Ground 13 VGA_HS
6 Ground 14 VGA_VS
7 Ground 15 VGA-SPCLK
8 Ground
Table 4: VGA port pinout
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EPIA-P900 User Manual
2.1.3. USB 2.0 Port
There are two integrated USB 2.0 ports located below the RJ45 LAN port at
the external I/O panel. The USB 2.0 interface port gives complete Plug and
Play and hot swap capability for external devices and it complies with USB
UHCI, rev. 2.0. Each USB port is using the USB Type A receptacle connector.
The pinout of the typical USB port is shown below.
Pin Signal
1 +5VSUS
2 Data3 Data+
4 Ground
Table 5: USB 2.0 port pinout
Figure 7: USB port pinout diagram
2.1.4. RJ45 LAN port: Gigabit Ethernet
The integrated 8-pin Gigabit Ethernet port is using an 8 Position 8 Contact
(8P8C) receptacle connector (commonly referred to as RJ45). The Gigabit
Ethernet ports are controlled by VIA Fast Ethernet controller. The pinout of
the Gigabit Ethernet port is shown below.
Pin Signal
1 Signal pair 1+
2 Signal pair 13 Signal pair 2+
4 Signal pair 3+
5 Signal pair 36 Signal pair 27 Signal pair 4+
8 Signal pair 4-
Table 6: Gigabit Ethernet port pinout
Figure 8: Gigabit Ethernet port pinout diagram
The RJ-45 port has two individual LED indicators located on the front side to
show its Active/Link status and Speed status.
Link LED
Link Off Off Off
Speed_10Mbit The LED is always On in either Green
Speed_100Mbit The LED is always On in Green color Flash in Yellow color
Speed_1000Mbit The LED is always On in Orange color Flash in Yellow color
Table 7: Gigabit Ethernet LED color definition
(Left LED on RJ-45 connector)
or Orange colors
(Right LED on RJ-45 connector)
Active LED
Flash in Yellow color
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2.2. Onboard Connectors
2.2.1. LVDS Connector
The mainboard has one 24-pin LVDS panel connector on the bottom side. The
onboard LVDS panel connector allows to connect the panel’s LVDS cable to
support the single-channel 18-bit/24-bit display. Backlight controls are
integrated into the LVDS panel connector pinout. The LVDS panel connector
is labeled as “LVDS1”. The pinout of the connector is shown below.
Figure 9: LVDS connector
Pin Signal Pin Signal
1 LVDSD0- 2 LVDSD13 LVDSD0+ 4 LVDSD1+
5 GND 6 GND
7 PVDD2 8 LVDSD29 PVDD2 10 LVDSD2+
11 LCD1_DATA 12 GND
13 LCD1_CLK 14 LVDSCLK+
15 GND 16 LVDSCLK17 VDD_BL 18 GND
19 VDD_BL 20 LVDSD321 BLEN_1 22 LVDSD3+
23 BAK_ADJ 24 GND
Table 8: LVDS connector pinout
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EPIA-P900 User Manual
2.2.2. VGA and USB combination pin header
The VGA and USB combination pin header block labeled as VGA_USB1 is
used to connect to the P830-A companion card. The pin header block
provides support for one VGA port and two USB 2.0 ports. The pinout of the
VGA and USB combination pin header is shown below.
CPU
VIA Eden X2
Figure 10: VGA and USB combination pin header
VX900H
VGA_USB1
Pin Signal Pin Signal
1 REDN 2 +5VCRT
3 GREENN 4 GND
5 BLUEN 6 DDCDATAN
7 GND 8 DDCCLKN
9 VGP_IO 10 VS
11 HS 12 GND
13 +5VSUS_USB 14 GND
15 USBHP5- 16 USBHP417 USBHP5+ 18 USBHP4+
Table 9: VGA and USB combination pin header pinout
1
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EPIA-P900 User Manual
VIA Eden X2
CPU
VX900H
SATA1
SATA2
1
1
2.2.3. SATA Connectors
The two SATA connectors onboard can support up to 3 Gb/s transfer speeds.
Both SATA connectors have a 7th pin1 that can provide +5V power to a SATA
Disk-on-Module (DOM). When a regular SATA hard drive is connected, the 7th
pin will be a ground pin. The SATA connectors are labeled as “SATA1” and
“SATA2”. The pinout of the SATA connectors are shown below.
Figure 11: SATA connectors
SATA1 SATA2
Pin Signal Pin Signal
1 GND 1 GND
2 STXP_0 2 STXP_1
3 STXN_0 3 STXN_1
4 GND 4 GND
5 SRXN_0 5 SRXN_1
6 SRXP_0 6 SRXP_1
7 GND/+5V
Table 10: SATA connector pinouts
7 GND/+5V
Note:
1. The SATA connector pin 7 default setting is GND. The +5V supports is a factory option.
15
EPIA-P900 User Manual
VIA Eden X2
CPU
VX900H
PWR2
1
2.2.4. SATA Power Connector
The onboard SATA power connector provides both +5V and +12V directly
through the mainboard to the SATA drives. The SATA power connector is
labeled as “PWR2”. The pinout of the SATA power connector is shown below.
Figure 12: SATA power connector
Pin Signal
1 +5V
2 +12V
3 GND
Table 11: SATA power connector pinout
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