UNIDENTIFIED
286A
Processor | 80286 |
Processor Speed | 12/16MHz |
Chip Set | C & T |
Max. Onboard DRAM | 5MB |
Cache | None |
BIOS | AMI |
Dimensions | 310mm x 218mm |
I/O Options | Floppy drive interface, game port, IDE interface, parallel port, serial ports (2) |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Serial port 2 | J3 | Reset switch | J11 |
Serial port 1 | J4 | Speaker | J12 |
Game port | J5 | Power LED & keylock | J13 |
Parallel port | J7 | IDE interface | JP9 |
Floppy drive interface | J8 | Turbo switch | JP23 |
Turbo LED | J10 | IDE interface LED | JP28 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
Monitor type select monochrome | JP2 | pins 1 & 2 closed | |
Monitor type select color | JP2 | pins 2 & 3 closed | |
Floppy drive interface enabled | JP4 | pins 1 & 2 closed | |
Floppy drive interface disabled | JP4 | pins 2 & 3 closed | |
CPU low speed CLK select 1/2 ATCLK | JP22 | Closed | |
CPU low speed CLK select 1/4 CLK2N | JP22 | Open |
DRAM CONFIGURATION | ||||||
Size | Bank 0 | P 0 | Bank 1 | P 1 | Bank 2 | Bank 3 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE | NONE | NONE |
640KB | (4) 44256 | (2) 41256 | (4) 4464 | (2) 4164 | NONE | NONE |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | NONE | NONE |
2MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 256K x 9 | (2) 256K x 9 |
2MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | NONE |
3MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 1M x 9 | NONE |
4MB | NONE | NONE | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 |
5MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 1M x 9 | (2) 1M x 9 |
DRAM CONFIGURATION | ||||||
Setting | JP10 | JP11 | JP12 | JP13 | JP14 | JP15 |
SIMM set as Bank 0 & 1 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
SIMM set as Bank 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |
IDE CONFIGURATION | ||
Setting | JP16 | JP17 |
Enabled | Closed | Closed |
Disabled | Open | Open |
PARALLEL PORT CONFIGURATION | ||
LPT | JP8 | JP9 |
LPT1 | pins 1 & 2 closed | pins 2 & 3 closed |
LPT2 | pins 1 & 2 closed | pins 1 & 2 closed |
LPT3 | pins 2 & 3 closed | pins 1 & 2 closed |
Disabled | pins 2 & 3 closed | pins 2 & 3 closed |
SERIAL PORT CONFIGURATION | ||||
Serial port 1 | Serial port 2 | JP5 | JP6 | JP7 |
COM1 | COM2 | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
COM1 | Disabled | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
COM2 | COM1 | pins 2 & 3 closed | pins 1 & 2 closed | pins 1 & 2 closed |
Disabled | COM1 | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
Disabled | COM2 | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed |
COM2 | Disabled | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
Disabled | Disabled | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |