DataExpert EXP4045
chipChipset
cpuCPU socket
Socket 3 (PGA237)
cpuCPU platforms
486486 (DX4)
speedFSB speeds
25MHz33MHz40MHz50MHz
chipCache
128KB256KB512KB
ramRAM type
72-pin FPM
ramMax RAM size
128MB
pwrPSU connector
AT-Style (P8-P9)
moboForm factor
Baby-AT (max 220 x 330mm)
dimDimensions
249mm x 218mm
connI/O ports
1x 
AT Keyboard
cardExpansion slots
3x 
32-bit VLB
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 2022-03-30T12:09:11Z
 TRW ID: 1489
chipsetChipset
chipsetChipset parts
Symphony Labs SL82C491 Symphony Labs SL82C492
drv Drivers: not available
BIOS images: 2 files
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
Award
01/18/95-SYM-SL82C491/49-2C4J6D01-00
4.50G
Award
11/23/94-SYM-SL82C491/49-2C4J6D01-00
4.50G
doc Documentation: 2 entries
doc Other files: not available
Model
Speed
FSB
Voltages
L1 Cache
L2 Cache
L3 Cache
Core
Process
TDP
AMD Am486 DX-40
40MHz
40MHz
5V
8KB
-
-
-
-
-
Cyrix Cx486 DX-50
50MHz
50MHz
5V
8KB
-
-
M6
-
-
Cyrix Cx486 DX2-66
66MHz
33MHz
5V
8KB
-
-
M7
-
-
Cyrix Cx486 DX-33
33MHz
33MHz
5V
8KB
-
-
M6
-
-
Cyrix Cx486 DX2-50
50MHz
25MHz
5V
8KB
-
-
M7
-
-
Cyrix Cx486 DX2-v66
66MHz
33MHz
3.45V
8KB
-
-
M7
-
-
Cyrix Cx486 DX-v33
33MHz
33MHz
3.3V
8KB
-
-
M6
-
-
Cyrix Cx486 DX2-v50
50MHz
25MHz
3.45V
8KB
-
-
M7
-
-
Intel i486 DX 50
50MHz
50MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 DX2 66
66MHz
33MHz
5V
8KB
-
-
P24
800nm
5W
Intel i486 DX2 66 (WB)
66MHz
33MHz
5V
8KB
-
-
P24D
800nm
-
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 DX2 50 (WB)
50MHz
25MHz
5V
8KB
-
-
P24D
800nm
-
Intel i486 DX 25
25MHz
25MHz
5V
8KB
-
-
P4
1000nm
-
Intel i486 SX 25
25MHz
25MHz
5V
8KB
-
-
P23
1000nm
-
Intel i486 DX4 100
100MHz
33MHz
3.3V
16KB
-
-
P24C
600nm
-
Intel i486 DX4 75
75MHz
25MHz
3.3V
16KB
-
-
P24C
600nm
-
No NPUs listed.

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