SOYO TECHNOLOGY CO., LTD.
SY-045A2/A5
|
Processor |
80486SX/80486SX2/CX486DX/U5S/80486DX/CX486DX2/AM486DX2/ 80486DX2/AM486DX4/80486DX4/P24D/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
256MB |
|
Cache |
256/512/1024KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slot, 32-bit PCI slots (4), IDE interfaces (2), parallel port, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Reset switch |
J19 |
|
Serial port 2 |
CN2 |
External battery |
J20 |
|
Parallel port |
CN3 |
Turbo switch |
J21 |
|
Floppy drive interface |
CN4 |
Turbo LED |
J22 |
|
IDE interface (primary) |
CN5 |
IDE interface LED (secondary) |
JP17 |
|
IDE interface (secondary) |
CN6 |
IDE interface LED (primary) |
JP18 |
|
Power LED & keylock |
J17 |
32-bit PCI slots |
PCI1 - PCI4 |
|
Speaker |
J18 |
32-bit VESA local bus slot |
SL1 |
|
Note: The locations of J19, J21, and J22 are unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Factory configured - do not alter |
J7 |
Open |
|
» |
Factory configured - do not alter |
JP1 |
N/A |
|
» |
Factory configured - do not alter |
JP2 |
N/A |
|
» |
Monitor type select color |
JP3 |
Closed |
|
Monitor type select monochrome |
JP3 |
Open | |
|
» |
Factory configured - do not alter |
JP4 |
N/A |
|
» |
CMOS memory normal operation |
JP5 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP5 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
JP6 |
Closed |
|
» |
Factory configured - do not alter |
JP7 |
Open |
|
» |
Factory configured - do not alter |
JP12 |
pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
JP13 |
N/A |
|
» |
CPU signal type select SMOUT |
JP15 |
pins 1 & 2 closed |
|
CPU signal type select STPCLK |
JP15 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
JP19 |
N/A |
|
» |
Factory configured - do not alter |
JP27 |
pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP28 |
pins 2 & 3 closed |
|
Note: The locations of JP1, JP2, JP3, JP4, JP13, JP19, and JP29 are unidentified. | |||
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
2MB |
(1) 512K x 36 |
NONE |
NONE |
NONE |
|
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
6MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
|
8MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
|
12MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
17MB |
(1) 256K x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
20MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 4M x 36 |
NONE |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
24MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
NONE |
|
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
32MB |
(1) 8M x 36 |
NONE |
NONE |
NONE |
|
36MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
NONE |
NONE |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
NONE |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
NONE |
NONE |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 16M x 36 |
NONE |
NONE |
NONE |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
NONE |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
NONE |
|
65MB |
(1) 256K x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
68MB |
(1) 1M x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
68MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
70MB |
(1) 16M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
|
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
NONE |
|
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
80MB |
(1) 4M x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
80MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
88MB |
(1) 16M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
NONE |
|
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
|
112MB |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
128MB |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
NONE |
|
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
132MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
|
144MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
160MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
160MB |
(1) 16M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
192MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
|
192MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
194MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 512K x 36 |
|
200MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 2M x 36 |
|
208MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
|
224MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 8M x 36 |
|
256MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
256KB |
(4) 64K x 8 |
NONE |
(1) 32K x 8 |
|
512KB |
(4) 64K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(1) 32K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 64K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP25 |
JP26 |
JP29 |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
512KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
512KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
1MB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | ||||||
|
Type |
JP30 |
JP31 |
JP32 |
JP33 |
JP34 |
JP36 |
|
80486SX |
3 & 4 |
Open |
2 & 3 |
Open |
Open |
Open |
|
80486SX2 |
3 & 4 |
Open |
2 & 3 |
Open |
Open |
Open |
|
CX486DX (5v) |
2 & 3 |
3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
Open |
|
U5S |
Open |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
3 & 4 |
Open |
Open |
|
80486DX |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
|
CX486DX2 (3.6v) |
2 & 3 |
3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
Open |
|
CX486DX2 (4v) |
2 & 3 |
3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
Open |
|
CX486DX2 (5v) |
2 & 3 |
3 & 4 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
Open |
|
AM486DX2 (3.45v) |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
Open |
|
AM486DX2 (5v) |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
Open |
|
AM486DX2 |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
1 & 2 |
|
80486DX2 |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
|
AM486DX4 (3.45v) |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
1 & 2 |
Open |
|
AM486DX4 |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
1 & 2 |
1 & 2 |
|
80486DX4 |
3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
|
P24D |
1 & 2, 3 & 4 |
3 & 4 |
1 & 2, 3 & 4 |
Open |
1 & 2 |
Open |
|
Pentium Overdrive |
3 & 4 |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
Open |
1 & 2 |
|
Note: Pins designated should be in closed position. | ||||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
JP37 |
JP38 |
JP39 |
JP40 |
JP41 |
|
80486SX |
4 & 5 |
Open |
Open |
1 & 2, 3 & 4 |
Open |
|
80486SX2 |
4 & 5 |
Open |
Open |
1 & 2, 3 & 4 |
Open |
|
CX486DX (5v) |
2 & 3 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
|
U5S |
Open |
Open |
Open |
1 & 2, 3 & 4 |
Open |
|
80486DX |
4 & 5 |
Open |
Open |
1 & 2, 3 & 4 |
Open |
|
CX486DX2 (3.6v) |
2 & 3 |
2 & 3 |
3 & 4 |
3 & 4, 5 & 6 |
Open |
|
CX486DX2 (4v) |
2 & 3 |
2 & 3 |
5 & 6 |
3 & 4, 5 & 6 |
Open |
|
CX486DX2 (5v) |
2 & 3 |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
|
AM486DX2 (3.45v) |
4 & 5 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
Open |
|
AM486DX2 (5v) |
4 & 5 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
Open |
|
AM486DX2 |
4 & 5 |
Open |
1 & 2 |
3 & 4, 5 & 6 |
2 & 3 |
|
80486DX2 |
4 & 5 |
Open |
Open |
1 & 2, 3 & 4 |
Open |
|
AM486DX4 (3.45v) |
4 & 5 |
Open |
1 & 2 |
1 & 2, 3 & 4 |
Open |
|
AM486DX4 |
4 & 5 |
Open |
1 & 2 |
3 & 4, 5 & 6 |
2 & 3 |
|
80486DX4 |
4 & 5 |
Open |
1 & 2 |
3 & 4, 5 & 6 |
Open |
|
P24D |
4 & 5 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
1 & 2 |
|
Pentium Overdrive |
1 & 2 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
|
Note: Pins designated should be in closed position. | |||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
JP42 |
JP43 |
JP44 |
JP45 |
JP46 |
|
80486SX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
|
80486SX2 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
|
CX486DX (5v) |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
|
U5S |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
4 & 5 |
|
80486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
CX486DX2 (3.6v) |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
|
CX486DX2 (4v) |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
|
CX486DX2 (5v) |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
|
AM486DX2 (3.45v) |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX2 (5v) |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX2 |
2 & 3 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
80486DX2 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX4 (3.45v) |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX4 |
2 & 3 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
80486DX4 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
P24D |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
2 & 3 |
|
Pentium Overdrive |
1 & 2 |
Open |
Open |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in closed position. | |||||
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JP14 |
JP21 |
JP22 |
|
25MHz |
pins 1 & 2 closed |
Open |
Open |
|
33MHz |
pins 1 & 2 closed |
Closed |
Closed |
|
40MHz |
pins 1 & 2 closed |
Closed |
Open |
|
50iMHz |
pins 1 & 2 closed |
Open |
Open |
|
66iMHz |
pins 1 & 2 closed |
Closed |
Closed |
|
75iMHz |
pins 1 & 2 closed |
Open |
Open |
|
80iMHz |
pins 1 & 2 closed |
Closed |
Open |
|
100iMHz |
pins 1 & 2 closed |
Closed |
Closed |
|
DRQ/DACK CONFIGURATION | ||||
|
DRQ/DACK |
JP8 |
JP9 |
JP10 |
JP11 |
|
None |
Open |
Open |
Open |
Open |
|
DRQ3/DACK3 |
Closed |
Open |
Open |
Closed |
|
DRQ7/DACK7 |
Open |
Closed |
Closed |
Open |