Entry by Zago
Asus P2B

Asus P2B Revision 1.10


CPU support

Supported sockets:
  • Slot 1
Front Side Bus speed: 66/100/133* MHz
Supported architectures:
  • Intel Celeron Covington
  • Intel Celeron Mendocino
  • Intel Pentium II Deschutes
  • Intel Pentium II Klamath
  • Intel Pentium III Coppermine
  • Intel Pentium III Katmai
Note! Some steppings might require updated BIOS/microcode to work properly.
Coppermine is supported in P2B 1.12 and 1.10 with the following voltage regulators: HIP6019BCB, HIP6020ACB, HIP6004CB, HIP6004BCB, US3007CW

System memory

  • Type: SDRAM 66/100/133*
    3x 168-pin DIMM
    ECC memory is optional
Max supported: 768.00 MB


Northbridge/MCH: Intel 440BX
Southbridge/ICH/PCH/MCP: Intel PIIX4E
SuperIO: Winbond W83977TF-AW

Power supply

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

Expansion slots

AGP 1.0 2x slot with 3.3 V keying
Due to the lack of a 1/2 divider in the 440BX, AGP will run at 89 MHz when running at FSB 133, expect issues when running AGP cards at FSB 133
4 PCI slots
3 16-bit ISA slots

Rear I/O ports

PS/2 keyboard
PS/2 mouse
2x USB 1.1 (15 Mb/s)
2x DE-9 serial
1x DB-25 parallel

Internal I/O headers

SB-Link header
IrDA header
SMBus header


2 IDE channels, up to 33 MB/s
Floppy connector, up to 2 drives

Circuit board

ATX form factor
PCB manufactured in the year 1998




BIOS image

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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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