UNIDENTIFIED
486S
|
Processor |
80486SX |
|
Processor Speed |
25MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-Bit external DRAM/SRAM card slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Reset switch 2 |
J12 |
|
Power LED & keylock |
J10 |
Reset switch 1 |
J13 |
|
Speaker |
J11 |
32-Bit external DRAM/SRAM card |
S1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CMOS memory normal operation |
J2 |
pins 1 & 2 closed | |
|
CMOS memory clear |
J2 |
pins 2 & 3 closed | |
|
Monitor type select color |
J3 |
Closed | |
|
Monitor type select monochrome |
J3 |
Open | |
|
Reset select J13 (Reset 1) |
J5 |
pins 1 & 2 closed | |
|
Reset select J12 (Reset 2) |
J5 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
J6 |
pins 1 & 2 closed | |
|
Note:Consult documentation provided with memory card for configurations. | |||
|
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 |
|
CACHE CONFIGURATION | ||
|
Setting |
J8 |
J9 |
|
Not installed |
Closed |
Closed |
|
Installed |
Open |
Open |