COMMODORE BUSINESS MACHINES, INC.
386SX
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
Unknown |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
Commodore |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
16-bit riser card slot, bus mouse port, floppy drive interface, game port, IDE interface, parallel port, serial ports (2), VGA interface |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
16-bit riser card |
CN1 |
Turbo LED |
J3 |
|
VGA port |
CN2 |
Turbo switch |
J4 |
|
Serial port 2 |
CN3 |
Reset switch |
J5 |
|
Serial port 1 |
CN4 |
IDE interface |
J9 |
|
Parallel port |
CN5 |
Floppy drive interface |
J10 |
|
Bus mouse port |
CN6 |
Game port |
J12 |
|
Power LED & keylock |
J1 |
External battery |
J15 |
|
IDE interface LED |
J2 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
J6 |
Closed | |
|
Monitor type select monochrome |
J6 |
Open | |
|
IDE interface enabled |
J7 and J8 |
Closed | |
|
IDE interface disabled |
J7 and J8 |
Open | |
|
Battery type select internal |
J14 |
pins 1 & 2 closed | |
|
Battery type select external |
J14 |
pins 2 & 3 closed | |
|
VGA port wait states select one |
J16 |
Open | |
|
VGA port wait states select zero |
J16 |
Closed | |
|
VGA port enabled |
J17 |
Closed | |
|
VGA port disabled |
J17 |
Open | |
|
Floppy interface enabled |
J23 |
pins 1 & 2 closed | |
|
Floppy interface disabled |
J23 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
|
1.5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
|
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
NONE |
NONE |
|
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
|
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
|
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
|
12MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
PARALLEL PORT CONFIGURATION | ||||
|
Parallel port |
IRQ |
J13 |
J18 |
J19 |
|
LPT1 |
5 |
pins 3 & 4 closed |
Open |
Closed |
|
LPT1 |
7 |
pins 1 & 2 closed |
Open |
Closed |
|
LPT2 |
5 |
pins 3 & 4 closed |
Closed |
Closed |
|
LPT2 |
7 |
pins 1 & 2 closed |
Closed |
Closed |
|
LPT3 |
5 |
pins 3 & 4 closed |
Closed |
Open |
|
LPT3 |
7 |
pins 1 & 2 closed |
Closed |
Open |
|
Disabled |
N/A |
N/A |
Open |
Open |
|
SERIAL PORT CONFIGURATION | ||||
|
UART1 |
UART2 |
J20 |
J21 |
J22 |
|
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 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Disabled |
COM1 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Disabled |
COM2 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM2 |
Disabled |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Disabled |
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
N/A |