Entry by Carlos S. M.
ESA TF-486

ESA TF-486 Revision 1.0

Specifications

CPU support

Supported sockets:
  • Socket 3
Front Side Bus speed: 20/25/33/40/50 MHz MHz
Supported architectures:
  • AMD Am486 DX P4
  • AMD Am486 DX2 (3.3V) P24C
  • AMD Am486 DX2 (5V) P24
  • AMD Am486 DX4 P24C
  • AMD Am486 SX P23
  • AMD Am5x86
  • AMD Enhanced Am486 DX2
  • AMD Enhanced Am486 DX4
  • AMD Enhanced Am486 DX4
  • Cyrix 5x86 M1sc
  • Cyrix Cx486DX M6
  • Cyrix Cx486DX2 (3.3V) M6
  • Cyrix Cx486DX2 (5V) M6
  • Cyrix Cx486DX4 M6
  • Cyrix Cx486S M5
  • Cyrix Cx487S M5
  • Intel i486DX P4
  • Intel i486DX2 P24
  • Intel i486DX2 (WB) P24D
  • Intel i486DX4 P24C
  • Intel i486SX P23
  • Intel i486SX2
  • Intel i487SX P23N
  • Intel Pentium Overdrive P24T
Note! Some steppings might require updated BIOS/microcode to work properly.
Supports external cache up to 512 kB

System memory

  • Type: EDO 70/60 ns
    2x 72-pin SIMM
    ECC memory is optional
Max supported: 64.00 MB

Platform

Northbridge/MCH: ALi M1489
Southbridge/ICH/PCH/MCP: ALi M1487
ALi M5042 keyboard controller
SuperIO: Winbond W83977EG-AW
1 Mbit Parallel BIOS ROM

Power supply

Main board power: AT
1 3-pin DC fan header

Expansion slots

1 PCI slot
8 16-bit ISA slots

Rear I/O ports

AT-style keyboard DIN connector

Internal I/O headers

2x RS232 serial
1x parallel

Storage

2 IDE channels, up to 16 MB/s
Floppy connector, up to 2 drives

Circuit board

Baby AT form factor
PCB manufactured in the year 2006

Notes

Dedicated socket for Disk-On-Chip module. Uses a Dallas DS12887 RTC.

Gallery

Attachments

Documentation

All files are checked before upload to make sure no harmful software is included. If your antivirus software gets triggered, it's most likely a false positive.

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
Feel free to improve the quality and quantity of this database by contributing with your entries. Use the contact links in the footer to get in touch.

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