SOYO TECHNOLOGY CO., LTD.
SY-027 B2/B5
|
Processor |
80486SX/SL80486SX/CX486DX/U5/AM486DXL/80486DX/SL80486DX/ CX486DX2/AM486DX2/AM486DXL2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)100(internal)MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128/256 |
|
BIOS |
Award |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
32-bit PCI slots (4), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
IDE interface |
J1 |
Turbo switch |
J21 |
|
Power LED & keylock |
J17 |
Turbo LED |
J22 |
|
Speaker |
J18 |
IDE interface LED |
JP28 |
|
Reset switch |
J19 |
Green PC connector |
JW6 |
|
External battery |
J20 |
32-bit PCI slots |
PCI1 - PCI4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Factory configured - do not alter |
JP32 |
Closed |
|
» |
CMOS memory normal operation |
JP33 |
Open |
|
CMOS memory clear |
JP33 |
Closed | |
|
» |
Factory configured - do not alter |
JP65 |
Open |
|
Note: The location of JP32 is unidentified. | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
2MB |
(1) 512K x 36 |
NONE |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
|
4MB |
(1) 1M x 36 |
NONE |
|
6MB |
(1) 1M x 36 |
(1) 512K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
(1) 2M x 36 |
NONE |
|
10MB |
(1) 2M x 36 |
(1) 512K x 36 |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
|
18MB |
(1) 4M x 36 |
(1) 512K x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
|
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 8M x 36 |
NONE |
|
34MB |
(1) 8M x 36 |
(1) 512K x 36 |
|
36MB |
(1) 8M x 36 |
(1) 1M x 36 |
|
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
|
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
128KB |
(4) 32K x 8 |
(1) 8K x 8 |
|
256KB |
(4) 64K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |
|
Size |
JP26 |
|
128KB |
Open |
|
256KB |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||||||
|
Type |
JP6 |
JP9 |
JP10 |
JP13 |
JP23 |
JP24 |
|
80486SX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
SL80486SX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
CX486DX |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
U5 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
80486DX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
AM486DXL |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
SL80486DX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
CX486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX2 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
AM486DXL2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
SL80486DX2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
AM486DX4 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX4 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
P24D |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
P24T |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in closed position. | ||||||
|
CPU TYPE CONFIGURATION (CON’T) | ||||||
|
Type |
JP52 |
JP53 |
JP54 |
JP55 |
JP56 |
JP57 |
|
80486SX |
Open |
Open |
Open |
Open |
Open |
Open |
|
SL80486SX |
Open |
Open |
Open |
Open |
1 & 2 |
Open |
|
CX486DX |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
U5 |
3 & 4 |
Open |
Open |
Open |
2 & 3 |
Open |
|
80486DX |
Open |
Open |
Open |
Open |
Open |
Open |
|
AM486DXL |
3 & 4 |
Open |
Open |
Open |
2 & 3 |
Open |
|
SL80486DX |
Open |
Open |
Open |
Open |
1 & 2 |
Open |
|
CX486DX2 |
2 & 3 |
Open |
Open |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX2 |
Open |
Open |
Open |
Open |
Open |
Open |
|
80486DX2 |
Open |
Open |
Open |
Open |
Open |
Open |
|
AM486DXL2 |
3 & 4 |
Open |
Open |
Open |
2 & 3 |
Open |
|
SL80486DX2 |
Open |
Open |
Open |
Open |
1 & 2 |
Open |
|
AM486DX4 |
Open |
Open |
Open |
Open |
Open |
Open |
|
80486DX4 |
Open |
Open |
Open |
Open |
1 & 2 |
Open |
|
P24D |
Open |
Closed |
Closed |
Open |
1 & 2 |
Open |
|
P24T |
1 & 2 |
Open |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in closed position. | ||||||
|
CPU TYPE CONFIGURATION (CON’T) | ||||||
|
Type |
JP58 |
JP59 |
JP60 |
JP62 |
JP63 |
JP64 |
|
80486SX |
Open |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
|
SL80486SX |
1 & 2 |
2 & 3, 4 & 5 |
Open |
Open |
2 & 3 |
3 &4 |
|
CX486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
U5 |
Open |
Open |
Open |
1 & 2, 3 & 4 |
2 & 3 |
1 & 2 |
|
80486DX |
Open |
Open |
Open |
3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
AM486DXL |
Open |
Open |
Open |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
SL80486DX |
1 & 2 |
2 & 3, 4 & 5 |
Open |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
CX486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
AM486DX2 |
Open |
Open |
Open |
3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
80486DX2 |
Open |
Open |
Open |
3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
AM486DXL2 |
Open |
Open |
Open |
1 & 2, 3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
SL80486DX2 |
1 & 2 |
2 & 3, 4 & 5 |
Open |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
AM486DX4 |
Open |
Open |
Open |
3 & 4 |
1 & 2, 3 & 4 |
1 & 2 |
|
80486DX4 |
1 & 2 |
2 & 3, 4 & 5 |
Open |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
P24D |
1 & 2 |
2 & 3, 4 & 5 |
Closed |
3 & 4 |
1 & 2, 3 & 4 |
3 &4 |
|
P24T |
1 & 2 |
2 & 3, 4 & 5 |
Open |
2 & 3 |
1 & 2, 3 & 4 |
3 & 4, 5 & 6 |
|
Note: Pins designated should be in closed position. | ||||||
|
CPU SPEED CONFIGURATION | |
|
Speed |
JP22 |
|
25MHz |
pins 1 & 2 closed |
|
33MHz |
pins 1 & 2, 3 & 4, 5 & 6 closed |
|
40MHz |
pins 1 & 2, 3 & 4 closed |
|
50iMHz |
pins 1 & 2 closed |
|
50MHz |
pins 5 & 6 closed |
|
66iMHz |
pins 1 & 2, 3 & 4, 5 & 6 closed |
|
75iMHz |
pins 1 & 2 closed |
|
80iMHz |
pins 1 & 2, 3 & 4 closed |
|
100iMHz |
pins 5 & 6 closed |
|
CPU SPEED CONFIGURATION (AM486 ONLY) | |
|
Speed |
JP61 |
|
2x |
pins 2 & 3 closed |
|
3x |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION (80486DX4 ONLY) | |
|
Speed |
JP51 |
|
2x |
pins 2 & 3 closed |
|
2.5x |
pins 1 & 2 closed |
|
3x |
Open |