Soyo SY-025P2
Also known as: Soyo SY-025P5 Soyo SY-025P1
chipChipset
cpuCPU socket
Socket 3 (PGA237)
cpuCPU family
486486 (DX4)
speedFSB speeds
25MHz33MHz50MHz
chipCache
64KB128KB256KB
ramRAM type
72-pin FPM
ramMax RAM size
128MB
pwrPSU connector
Unknown
moboForm factor
Baby-AT (max 220 x 330 mm)
dimDimensions
254mm x 220mm
connI/O ports
1x 
AT Keyboard
cardExpansion slots
3x 
32-bit VLB
7x 
16-bit ISA

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

Last updated 2023-04-27T19:05:50Z
 TRW ID: 4652
chipsetChipset
chipsetChipset parts
SiS 85C407 SiS 85C471
drv Drivers: not available
BIOS images: 2 files
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
Award
03/08/95-SIS-85C471B/E/G-2C4I9S21-00
4.50G
Award
08/01/94-SIS-85C471B/E-2C4I9S21-00
4.50G
doc Documentation: 2 entries
doc Other files: not available
Model
Speed
FSB
Voltages
L1 Cache
L2 Cache
L3 Cache
Core
Process
TDP
50MHz
50MHz
5V
8KB
-
-
M6
-
-
50MHz
50MHz
5V
8KB
-
-
P4
1000nm
-
100MHz
33MHz
5V
8KB
-
-
-
-
-
66MHz
33MHz
3.3V
8KB
-
-
-
-
2W
66MHz
33MHz
5V
8KB
-
-
P4T
-
-
66MHz
33MHz
5V
8KB
-
-
P4T
-
-
66MHz
33MHz
5V
8KB
-
-
P23T
-
-
33MHz
33MHz
5V
2KB
-
-
M5
-
-
33MHz
33MHz
5V
8KB
-
-
M6
-
-
33MHz
33MHz
3.3V
8KB
-
-
M6
-
-
133MHz
33MHz
3.45V
16KB
-
-
-
350nm
3W
100MHz
33MHz
3.3V
16KB
-
-
-
350nm
2W
83MHz
33MHz
5V
32KB
-
-
P24T
350nm
-
66MHz
33MHz
3.3V
16KB
-
-
-
350nm
2W
100MHz
33MHz
3.3V
8KB
-
-
-
500nm
2W
100MHz
33MHz
3.3V
8KB
-
-
-
500nm
2W
100MHz
33MHz
3.3V
8KB
-
-
-
500nm
2W
100MHz
33MHz
3.3V
16KB
-
-
P24C
600nm
-
100MHz
33MHz
3.3V
16KB
-
-
P24C
600nm
-
66MHz
33MHz
3.3V
8KB
-
-
P24C
600nm
-
33MHz
33MHz
5V
8KB
-
-
U5S
600nm
-
33MHz
33MHz
5V
8KB
-
-
U5SD
600nm
-
33MHz
33MHz
5V
8KB
-
-
U5SX
600nm
-
133MHz
33MHz
3.45V
16KB
-
-
M1sc
650nm
3W
100MHz
33MHz
3.45V
16KB
-
-
M1sc
650nm
3W
66MHz
33MHz
5V
8KB
-
-
P24
800nm
5W
66MHz
33MHz
5V
8KB
-
-
P24D
800nm
-
33MHz
33MHz
5V
8KB
-
-
P4
1000nm
-
33MHz
33MHz
5V
8KB
-
-
P23
1000nm
-
75MHz
25MHz
5V
8KB
-
-
-
-
-
63MHz
25MHz
5V
32KB
-
-
P24T
-
-
50MHz
25MHz
5V
8KB
-
-
M7
-
-
50MHz
25MHz
3.45V
8KB
-
-
M7
-
-
50MHz
25MHz
5V
8KB
-
-
P4T
-
-
50MHz
25MHz
5V
8KB
-
-
P23T
-
-
25MHz
25MHz
5V
8KB
-
-
M5
-
-
75MHz
25MHz
3.3V
8KB
-
-
-
500nm
2W
25MHz
25MHz
5V
8KB
-
-
U5S
600nm
-
25MHz
25MHz
5V
8KB
-
-
U5SD
600nm
-
50MHz
25MHz
5V
8KB
-
-
-
800nm
-
50MHz
25MHz
5V
8KB
-
-
P24
800nm
-
50MHz
25MHz
5V
8KB
-
-
P24D
800nm
-
25MHz
25MHz
5V
8KB
-
-
P4
1000nm
-
25MHz
25MHz
5V
8KB
-
-
P23
1000nm
-
No NPUs listed.

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