SOYO COMPUTER CO., LTD.
SY-24A
|
Processor |
80386DX/80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
CONTAQ |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 217mm |
|
I/O Options |
None |
|
NPU Options |
80387/3167 |
|
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 | |
| » |
CMOS memory normal operation |
JP5 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP5 |
pins 2 & 3 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 |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
2OMB |
(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 (U28) |
Dirty Bit (U44) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 16K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 16K x 4 |
|
Note:Dirty bit need only be filled if writeback mode is selected in the CMOS-advanced chipset setup. | ||||
|
CACHE JUMPER CONFIGURATION | ||||||
|
Size |
JP30 |
JP31 |
JP32 |
JP33 |
JP34 |
JP35 |
|
64KB |
Open |
Open |
Open |
Open |
Open |
2 & 3 |
|
256KB |
Closed |
Closed |
Closed |
Closed |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||||
|
CPU TYPE CONFIGURATION | |||||||||
|
Type |
JP36 |
JP37 |
JP38 |
JP39 |
JP40 |
JP41 |
JP42 |
JP43 |
JP44 |
|
80386DX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486SX |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
80486DX |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
80486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||||||
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
OSC2 |
JP8 |
JP13 |
JP14 |
|
25/50iMHz |
25MHz |
pins 1 & 2 closed |
Open |
Closed |
|
25/50iMHz |
50MHz |
pins 2 & 3 closed |
Open |
Closed |
|
33/66iMHz |
33.33MHz |
pins 1 & 2 closed |
Closed |
Open |
|
33/66iMHz |
66.667MHz |
pins 2 & 3 closed |
Closed |
Open |
|
40MHz |
40MHz |
pins 1 & 2 closed |
Open |
Open |
|
40MHz |
80MHz |
pins 2 & 3 closed |
Open |
Open |
|
50MHz |
50MHz |
pins 1 & 2 closed |
Closed |
Closed |