UNIDENTIFIED
S486V
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/80(internal)MHz |
|
Chip Set |
SIS |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
JP13 |
External battery |
JP22 |
|
Turbo LED |
JP14 |
Reset switch |
JP24 |
|
Turbo switch |
JP15 |
32-bit VESA local bus slots |
SL1 - SL3 |
|
Power LED & keylock |
JP19 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP20 |
Closed | |
|
Monitor type select monochrome |
JP20 |
Open | |
|
|
CMOS memory normal operation |
JP21 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP21 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(1) 256K x 36 |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
|
2MB |
(1) 512K x 36 |
NONE |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
|
4MB |
(1) 1M x 36 |
NONE |
|
6MB |
(1) 512K x 36 |
(1) 1M x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
(1) 2M x 36 |
NONE |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
|
18MB |
(1) 512K x 36 |
(1) 4M x 36 |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U11) |
TAG (U60) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||||
|
Size |
JP8 |
JP9 |
JP10 |
JP11 |
JP12 |
JP61 |
JP86 |
|
64KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
128KB |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
|
256KB |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP2 |
JP3 |
JP4 |
|
80486SX |
Open |
pins 2 & 3 closed |
Open |
|
80487SX |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
80486DX |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX2 |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JP16 |
JP17 |
JP18 |
|
20MHz |
Open |
Open |
Open |
|
25MHz |
Closed |
Open |
Open |
|
33MHz |
Closed |
Closed |
Closed |
|
40MHz |
Closed |
Closed |
Open |
|
50MHz |
Open |
Open |
Closed |
|
50iMHz |
Closed |
Open |
Open |
|
66iMHz |
Closed |
Open |
Closed |
|
80iMHz |
Open |
Closed |
Closed |
|
VL BUS SPEED CONFIGURATION | ||
|
CPU speed |
JP25 |
JP26 |
|
<= 33MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
> 33MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |