Entry by Carlos S. M.
Intel D850EMV2

Intel D850EMV2


CPU support

Supported sockets:
  • mPGA478
Front Side Bus speed: 400/533 MHz
Supported architectures:
  • Intel Celeron Northwood-128
  • Intel Celeron Willamette-128
  • Intel Pentium 4 Northwood
  • Intel Pentium 4 Willamette
Note! Some steppings might require updated BIOS/microcode to work properly.
HyperThreading is only supported in revisions C18361-601, C18369-601 or newer

System memory

  • Type: RDRAM 800/1066
    2 memory channels on 4x RIMM
    ECC memory is optional
Max supported: 2.00 GB
PC1066 RDRAM is only supported in revisions C18361-603, C18369-604, C18701-603 or newer


Northbridge/MCH: Intel 850E
Southbridge/ICH/PCH/MCP: Intel ICH2
SuperIO: SMSC LPC47M172-NC
Analog Devices AD1881B audio IC over AC97 bus
Intel 82562ET (Optional) for 100M operation

Power supply

Main board power: 20-pin ATX
CPU power: 4-pin P4
3 3-pin DC fan headers

Expansion slots

AGP Pro 2.0 4x slot with 1.5 V keying
Can be configured to AGP Pro
5 PCI slots
1 Communication and Network riser

Rear I/O ports

PS/2 keyboard
PS/2 mouse
2x USB 2.0 (480 Mb/s)
2x DE-9 serial
1x DB-25 parallel
1x RJ-45

Internal I/O headers

1x USB 2.0 (480 Mb/s)


2 IDE channels, up to 100 MB/s
Floppy connector, up to 2 drives

Circuit board

ATX form factor




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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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