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 |