ESA TF-486

Chipset

ALi M1489/87 (FinALi-486 PCI Chipset)

Socket

Socket 3 (PGA237)

FSB speeds

20MHz25MHz33MHz40MHz50MHz

Form factor

Baby AT (max 220 x 330 mm)

Dimensions

257mm x 222mm

Cache

0B128KB256KB512KB

Max RAM size

64MB

RAM types

72-pin FPM72-pin EDO

PSU connector

Empty

Also known as

ESA TF-486C
ESA TF-486F

I/O ports

AT Keyboard

Floppy interface

IDE interface

PS/2 mouse

Parallel

Serial

Expansion slots

16-bit ISA

32-bit PCI

Known issues

DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Notes

Industrial motherboard. Very late 486 board (1999)

Last updated 2025-02-28T20:58:20Z

Board info score is 8.7/10

Chips