Gigabyte GA-486US
Form factor
Baby-AT (max 220 x 330mm)
PSU connector
AT-Style (P8-P9)
Chipset
Chipset parts
UMC UM82C481
UMC UM82C482
(any brand) 82C206
Dimensions
330mm x 218mm
CPU sockets
PGA168PGA144
CPU platforms
486WTL4167
Supported FSB speeds
16MHz, 20MHz, 25MHz, 33MHz, 50MHz
Cache
64 KB
, 128 KB
, 256 KB
Supported RAM size
32 MB
Supported RAM type
30-pin SIMM
I/O ports
1x
AT Keyboard
Expansion slots
1x
8-bit ISA
7x
16-bit ISA
Known issues:
-
Leaky Ni-Cd clock battery.
Remove the Ni-Cd battery as soon as possible and neutralize the leakage using white vinegar. Some more in-depth look may be needed to properly fix the motherboard. The battery can then be replaced using this https://github.com/wiretap-retro/Not-A-Varta.
Last updated 2021-11-11T22:43:17Z
Model
Speed
FSB
Voltages
L1 Cache
L2 Cache
L3 Cache
Core
Process
TDP
Intel i486 DX 50
50MHz
50MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 SX 33
33MHz
33MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 DX 33
33MHz
33MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 SX 25
25MHz
25MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 DX 25
25MHz
25MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 SX 20
20MHz
20MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 SX 16
16MHz
16MHz
5V
8KB
-
-
P23
1000nm
-
Model
Speed
FSB
Part Number
Weitek WTL4167
25MHz
25MHz
4167-025-GCD
Weitek WTL4167
33MHz
33MHz
4167-033-GCD
Disclaimer
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