Full Yes SIS 486G 3.3/5V rev G/H
Chipset
CPU socket
FSB speeds
20MHz25MHz33MHz40MHz50MHz
Form factor
Baby AT (max 220 x 330 mm)
Dimensions
330mm x 218mm
Cache
64KB128KB256KB512KB1MB
Max RAM size
128MB
RAM types
30-pin SIMM72-pin FPM
PSU connector
I/O ports
1x
AT Keyboard
Expansion slots
7x
16-bit ISA
3x
32-bit VLB
Also known as:
- Full Yes SIS471MU
- Full Yes FY1471
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
- Fake cache
The motherboard may include a non-functional or counterfeit SRAM cache, which can adversely affect performance. Signs of fake cache often include soldered QFP or DIP-chips labeled "WRITE-BACK" with traces that do not connect to the chipset.
- DIP chips can typically be removed and replaced with functional SRAM chips in sockets to restore cache functionality.
- QFP fake cache chips are often not replaceable with functional cache as the PCB footprints are not chipset connected.
Last updated 2024-03-14T19:46:19Z
Board info score is 8.3/10
CPU family support
No drivers available
2 board documents available
Release date
File
Logs
Chip
Release date
File
Logs
Disclaimer
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