Entry by Carlos S. M.
Acer / ECS EG31M

Acer / ECS EG31M Revision 1.1

Specifications

CPU support

Supported sockets:
  • LGA775
Front Side Bus speed: 800/1066/1333 MHz
Supported architectures:
  • Intel Celeron Conroe-L
  • Intel Celeron D Cedar Mill-512
  • Intel Celeron D Prescott-256
  • Intel Celeron Dual-Core Allendale
  • Intel Celeron Dual-Core Wolfdale
  • Intel Core2 Duo Allendale
  • Intel Core2 Duo Conroe
  • Intel Core2 Duo Wolfdale
  • Intel Core2 Quad Kentsfield
  • Intel Core2 Quad Yorkfield
  • Intel Pentium 4 Cedar Mill
  • Intel Pentium 4 Prescott
  • Intel Pentium 4 Prescott-2M
  • Intel Pentium D Presler
  • Intel Pentium D Smithfield
  • Intel Pentium Dual-Core Allendale
  • Intel Pentium Dual-Core Wolfdale
Note! Some steppings might require updated BIOS/microcode to work properly.
This board can run modified Xeons for LGA775 with a 95W or lower TDP

System memory

  • Type: DDR2 533 / 667 / 800MHz
    2 memory channels on 2x 240pin DIMM
Max supported: 4.00 GB

Platform

Northbridge/MCH: Intel G31
Southbridge/ICH/PCH/MCP: Intel ICH7
SuperIO: ITE IT8718F-S
Intel GMA 3100 integrated graphics, with max 256 MB of System VRAM
Realtek ALC888S audio IC over HD Audio bus
Realtek RTL8111DL for 1G operation
8 Mbit SPI BIOS ROM

Power supply

Main board power: 24-pin ATX
CPU power: 4-pin P4
1 3-pin DC fan header
1 4-pin PWM fan header

Expansion slots

2 PCI slots
1 PCIe x16 slot
1 PCIe x1 slot

Rear I/O ports

PS/2 keyboard
PS/2 mouse
4x USB 2.0 (480 Mb/s)
1x RJ-45
VGA output
Audio connectors: Line out, Line in, Microphone in

Internal I/O headers

4x USB 2.0 (480 Mb/s)
1x RS232 serial
Audio headers: S/PDIF
Header for front HD Audio

Storage

1 IDE channel, up to 100 MB/s
4 SATA-II (3 Gb/s) ports
Floppy connector, up to 1 drive

Circuit board

Micro ATX form factor
PCB manufactured in the year 2009

Notes

Has an integrated audio header for the OEM case/speaker and amplifier board

Gallery

Attachments

No documents uploaded yet :(

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Disclaimer

The info you find here might not be 100% correct. This is due to a couple of reasons:
  • I'm an idiot and I misread/misspelled something
  • I have a different board revision from yours
  • The production date/plant is different and they might have used slightly different components
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