SOYO COMPUTER CO., LTD.
SY-024B1/B2
|
Processor |
80386DX/CX486DLC/80486SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J17 |
External battery |
J20 |
|
Speaker |
J18 |
Turbo switch |
J21 |
|
Reset switch |
J19 |
Turbo LED |
J22 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select monochrome |
JP3 |
Open | |
|
Monitor type select color |
JP3 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U22) |
TAG (U23) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
NONE |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
NONE |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
NONE |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 8K x 8 |
(1) 8K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||||
|
Size |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
|
64KB |
Open |
Open |
Open |
Open |
Open |
2 & 3 |
|
128KB |
Closed |
Closed |
Closed |
Open |
Open |
1 & 2 |
|
256KB |
Closed |
Closed |
Closed |
Closed |
Closed |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||||
|
CPU TYPE CONFIGURATION | |||||||||
|
Type |
JP4 |
JP11 |
JP12 |
JP13 |
JP14 |
JP15 |
JP16 |
JP18 |
JP31 |
|
80386DX |
Closed |
1 & 2 |
Open |
2 & 3 |
N/A |
N/A |
N/A |
2 & 3 |
Closed |
|
CX486DLC |
Closed |
1 & 2 |
Closed |
2 & 3 |
N/A |
N/A |
N/A |
2 & 3 |
Closed |
|
80486SX |
N/A |
2 & 3 |
N/A |
1 & 2 |
Open |
N/A |
2 & 3 |
1 & 2 |
Open |
|
80486DX |
N/A |
2 & 3 |
N/A |
1 & 2 |
Closed |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
|
ODP486SX |
N/A |
2 & 3 |
N/A |
1 & 2 |
Open |
N/A |
1 & 2 |
1 & 2 |
Open |
|
80486DX2 |
N/A |
2 & 3 |
N/A |
1 & 2 |
Closed |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
|
Note:Pins designated should be in the closed position. | |||||||||
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
JP24 |
JP25 |
JP26 |
JP27 |
|
25MHz |
Closed |
Open |
Closed |
Open |
|
33MHz |
Closed |
Closed |
Open |
Open |
|
40MHz |
Open |
Open |
Closed |
Closed |
|
50iMHz |
Closed |
Open |
Closed |
Open |
|
50MHz |
Closed |
Open |
Closed |
Closed |
|
66iMHz |
Closed |
Closed |
Open |
Open |
|
CPU CLOCK SOURCE CONFIGURATION | ||
|
Type |
JP17 |
JP19 |
|
AV9107-03 |
Open |
Closed |
|
Oscillator installed at OSC1 |
pins 1 & 2 closed |
pins 2 & 3 closed |