DD & TT Enterprise DT-423S4L (Revision C2 and earlier)
chipChipset
cpuCPU sockets
WTL4167 (PGA144) Socket 1 (PGA169)
speedFSB speeds
20MHz25MHz33MHz50MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 218mm
chipCache
64KB256KB1MB
ramMax RAM size
32MB
ramRAM type
30-pin SIMM
pwrPSU connector
AT (P8-P9)
connI/O ports
1x 
AT Keyboard
cardExpansion slots
7x 
16-bit ISA

Also known as:

  • Schneider T486DX

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.

Last updated 2024-03-27T22:22:49Z
Score is 8.9/10
2 files available

Vendor: AMI [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
30-0200-DF0000-00101111-070791-SYM_486
Note
Core version
BIOS version
Last edit
pwr 2024-02-11

Vendor: Mr. BIOS [1 entry]

POST string
Note
Core Ver.
BIOS Ver.
Last edit
POST string
SYML401
Note
Core version
BIOS version
Last edit
pwr 2024-02-11
drv No drivers available
doc 2 board documents available
Language
Release date
File
Last edit
Language
English
Release date
File
Last edit
pwr 1970-01-01
Language
English
Release date
1991
File
Last edit
pwr 2024-03-27

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