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 |