SOYO COMPUTER CO., LTD.
SY-033 A2/A5/A1M
|
Device Type |
Mainboard |
|
Processor |
Pentium |
|
Processor Speed |
75/90/100MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
128MB |
|
Cache |
256/512/1024KB |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit PCI slots (4) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Green PC connector |
BSW1 |
Reset switch |
J19 |
|
5v power |
J2 |
Turbo switch |
J21 |
|
3.3v power |
J3 |
Turbo LED |
J22 |
|
Power LED & keylock |
J17 |
Chassis fan power |
JP9 |
|
Speaker |
J18 |
32-bit PCI slots |
PC1 PC4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
BIOS type select EPROM |
JP1 |
Pins 2 & 3, 4 & 5 closed |
|
BIOS type select flash |
JP1 |
Pins 1 & 2, 5 & 6 closed | |
|
|
Monitor type select color |
JP3 |
Closed |
|
Monitor type select monochrome |
JP3 |
Open | |
|
|
Factory configured - do not alter |
JP5 |
Unidentified |
|
|
Factory configured - do not alter |
JP7 |
Pins 2 & 3 closed |
|
|
External fan controlled by JP18 |
JP8 |
Pins 1 & 2 closed |
|
External fan always enabled |
JP8 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP11 |
Pins 1 & 2 closed |
|
|
Factory configured - do not alter |
JP12 |
Pins 2 & 3 closed |
|
|
Factory configured - do not alter |
JP13 |
Pins 1 & 2 closed |
|
|
Clock generator select stopped by STPCLK |
JP17 |
Pins 1 & 2 closed |
|
Clock generator select stopped by SMOUT |
JP17 |
Pins 2 & 3 closed | |
|
|
Fan control select stopped by STPCLK |
JP18 |
Pins 1 & 2 closed |
|
Fan control select stopped by SMOUT |
JP18 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP20 |
Pins 2 & 3 closed |
|
|
Factory configured - do not alter |
SLED |
Unidentified |
|
Note: The location of JP8 is unidentified. | |||
|
SIMM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
2MB |
(2) 256K x 36 |
None |
|
4MB |
(2) 512K x 36 |
None |
|
4MB |
(2) 256K x 36 |
(2) 256K x 36 |
|
8MB |
(2) 1M x 36 |
None |
|
8MB |
(2) 512K x 36 |
(2) 512K x 36 |
|
12MB |
(2) 512K x 36 |
(2) 1M x 36 |
|
16MB |
(2) 2M x 36 |
None |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
|
20MB |
(2) 512K x 36 |
(2) 2M x 36 |
|
24MB |
(2) 1M x 36 |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
None |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
|
36MB |
(2) 512K x 36 |
(2) 4M x 36 |
|
40MB |
(2) 1M x 36 |
(2) 4M x 36 |
|
48MB |
(2) 2M x 36 |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
None |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
|
72MB |
(2) 1M x 36 |
(2) 8M x 36 |
|
80MB |
(2) 2M x 36 |
(2) 8M x 36 |
|
96MB |
(2) 4M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
|
128MB |
(2) 16M x 36 |
None |
|
SIMM JUMPER CONFIGURATION | ||
|
Size |
JP15 |
JP16 |
|
2MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
4MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
4MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
8MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
8MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
12MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
16MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
16MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
20MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
24MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
32MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
32MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
36MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
40MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
48MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
64MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
64MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
72MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
80MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
96MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
128MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
128MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
256KB |
(8) 32K x 8 |
(1) 8K x 8 |
|
512KB |
(8) 64K x 8 |
(1) 16K x 8 |
|
1MB |
(8) 128K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP10 |
JP14 |
JP20 |
|
256KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Open |
|
512KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
|
1MB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Closed |
|
CPU SPEED SELECTION | |||||
|
CPU speed |
Clock speed |
Multiplier |
JP2 |
JP4 |
JP6 |
|
75MHz |
50MHz |
1.5x |
Open |
Open |
Open |
|
90MHz |
60MHz |
1.5x |
Closed |
Open |
Open |
|
100MHz |
66MHz |
1.5x |
Closed |
Closed |
Closed |