ECS UC4915-A AIO

Chipset

UMC UM82C491/493

Socket

Socket 3 (PGA237)

FSB speeds

20MHz25MHz33MHz40MHz50MHz

Form factor

Baby AT (max 220 x 330 mm)

Dimensions

330mm x 218mm

Cache

64KB128KB256KB

Max RAM size

64MB

RAM type

72-pin FPM

PSU connector

AT (6-pin P8 + 6-pin P9)

I/O ports

AT Keyboard

Floppy interface

Gameport

IDE interface

Parallel

Serial

Expansion slots

16-bit ISA

32-bit VLB

Known issues

Leaky Ni-Cd clock battery

The Ni-Cd battery may be leaking, risking damage to PCB layers & nearby components. Promptly remove the battery & clean corrosion/alkaline salts from the board. Use white vinegar to dissolve salts, but exercise caution as vinegar can corrode exposed metals. A thorough examination & repair may be needed. Replace battery with guide: https://github.com/wiretap-retro/Not-A-Varta

Notes

The Vobis BIOS version does not support PS/2 mouse, all routines and functions (IRQ12, INT15 function C1h, C2h, ETC.) responsible for PS/2 mouse data and resource handling are absent.

Last updated 2024-12-08T13:45:38Z

Board info score is 8.4/10

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