COMMODORE BUSINESS MACHINES, INC.
286 System (Part #368987-01 Rev B)
Processor |
80286 |
Processor Speed |
8/10MHz |
Chip Set |
Unidentified |
Max. Onboard DRAM |
16MB |
Cache |
None |
BIOS |
Commodore |
Dimensions |
254mm x 218mm |
I/O Options |
16-bit riser card slot, bus mouse port, floppy interface, game port, IDE interface, parallel port, serial ports (2) |
NPU Options |
80287 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
16-bit riser card |
CN1 |
Drive power |
DPWR |
Serial port 1 |
CN2 |
Floppy drive interface |
FDD |
Serial port 2 |
CN3 |
Game port |
GAM |
Parallel port |
CN4 |
IDE drive interface |
IDE |
Bus mouse port |
CN5 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Battery type select internal |
J10 |
pins 2 & 3 closed |
Battery type select external |
J10 |
pins 1 & 2 closed | |
» |
Monitor type select monochrome |
J12 |
Closed |
Monitor type select color |
J12 |
Open | |
» |
IDE interface enabled |
J14 |
pins 1 & 2 closed |
IDE interface disabled |
J14 |
pins 2 & 3 closed | |
» |
Floppy drive interface enabled |
J15 |
pins 1 & 2 closed |
Floppy drive interface disabled |
J15 |
pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
512KB |
(4) 44256 |
NONE |
NONE |
NONE |
1MB |
(4) 44256 |
(4) 44256 |
NONE |
NONE |
1.5MB |
(4) 44256 |
(4) 44256 |
(2) 256K x 9 |
NONE |
2MB |
(4) 44256 |
(4) 44256 |
(2) 256K x 9 |
(2) 256K x 9 |
2MB |
(4) 441000 |
NONE |
NONE |
NONE |
3MB |
(4) 44256 |
(4) 44256 |
(2) 1M x 9 |
NONE |
4MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
4MB |
(4) 441000 |
(4) 441000 |
NONE |
NONE |
5MB |
(4) 44256 |
(4) 44256 |
(2) 1M x 9 |
(2) 1M x 9 |
8MB |
(4) 444000 |
NONE |
NONE |
NONE |
16MB |
(4) 444000 |
(4) 444000 |
NONE |
NONE |
16MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
DRAM JUMPER CONFIGURATION | ||
Size |
J6 |
J7 |
512KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
1MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
1.5MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
2MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
2MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
3MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
4MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
4MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
5MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
8MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
16MB |
pins 2 & 3 closed |
pins 2 & 3 closed |
16MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
SERIAL PORT CONFIGURATION | ||||
CN1 |
CN2 |
J16 |
J17 |
J18 |
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 |
Disabled |
COM1 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
COM2 |
COM1 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
COM2 |
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
Disabled |
COM2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
Disabled |
Disabled |
N/A |
pins 2 & 3 closed |
pins 2 & 3 closed |
PARALLEL PORT CONFIGURATION | |||
LPT |
J19 |
J20 |
J21 |
LPT1 |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
LPT2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
LPT3 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
.
VIDEO BOARD CONFIGURATION | |||
Function |
Jumper |
Position | |
» |
VGA board enabled |
J1 |
Closed |
VGA board disabled (VESA enabled) |
J1 |
Open | |
» |
VGA 1024 x 768 mode disabled |
J2 |
Open |
VGA 1024 x 768 mode enabled |
J2 |
Closed | |
» |
Monitor type select color |
J3 |
Open |
Monitor type select monochrome |
J3 |
Closed |