PCChips M421
Form factor
Baby-AT (max 220 x 330mm)
PSU connector
AT-Style (P8-P9)
Chipset
Chipset parts
PCChips TC6931AF (3228) PCChips 240 (16329)
Dimensions
220mm x 220mm
CPU platform
486
Supported FSB speeds
25MHz, 33MHz, 50MHz
Supported RAM size
32 MB
Supported RAM type
30-pin SIMM
I/O ports
1x 
AT Keyboard
Expansion slots
6x 
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 2022-10-21T11:34:03Z
drv Drivers: not available
BIOS images: no files available
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
AMI
doc Documentation: 1 entry
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 DX2 66
66MHz
33MHz
5V
8KB
-
-
P24
800nm
5W
Intel i486 SX 33
33MHz
33MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 DX 33
33MHz
33MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 DX2 50
50MHz
25MHz
5V
8KB
-
-
P24
800nm
-
Intel i486 SX 25
25MHz
25MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 DX 25
25MHz
25MHz
5V
8KB
-
-
P4
1000nm
-
No NPUs listed.

Disclaimer

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