UNIDENTIFIED
80386SX MOTHERBOARD
|
Processor |
80386SX |
|
Processor Speed |
16MHz |
|
Chip Set |
NEAT |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Reset switch |
J4 |
|
Speaker |
J2 |
Turbo LED |
J5 |
|
Turbo switch |
J3 |
External battery |
J6 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Turbo enabled |
J3 |
pins 1 & 2 closed |
|
Turbo disabled |
J3 |
pins 2 & 3 closed | |
|
|
Battery type select internal |
J6 |
pins 1 & 2 closed |
|
Battery type select external |
J6 |
Closed | |
|
CMOS memory clear |
J6 |
pins 3 & 4 closed | |
|
|
Pipeline enabled |
JP3 |
Closed |
|
Pipeline disabled |
JP3 |
Open | |
|
|
NPU asynchronous with CPU |
JP4 |
Closed |
|
NPU synchronous with CPU |
JP4 |
Open | |
|
NPU enabled |
JP5 |
Closed | |
|
NPU disabled |
JP5 |
Open | |
|
|
Clock select 80386SX clock 2 |
JP6 |
pins 2 & 3 closed |
|
Clock select 80387SX clock 2 |
JP6 |
pins 1 & 2 closed | |
|
|
BIOS type select 27256 |
JP7 |
pins 1 & 2 closed |
|
BIOS type select 27128 |
JP7 |
pins 2 & 3 closed | |
|
|
Monitor type select monochrome |
JP8 |
pins 2 & 3 closed |
|
Monitor type select color/EGA/VGA |
JP8 |
pins 1 & 2 closed | |
|
|
BIOS pin select 23 pin |
JP9 |
pins 1 & 2 closed |
|
BIOS pin select 30 pin |
JP9 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(2) 256K x 9 |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
(18) 41256 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(18) 41256 |
(18) 41256 |
|
1.5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(18) 41256 |
NONE |
|
1.5MB |
(2) 256K x 9 |
NONE |
(18) 41256 |
(18) 41256 |
|
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(18) 41256 |
(18) 41256 |
|
2MB |
(2) 1M x 9 |
NONE |
NONE |
NONE |
|
2MB |
NONE |
NONE |
(18) 411000 |
(18) 411000 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
|
4MB |
(2) 1M x 9 |
NONE |
(18) 411000 |
(18) 411000 |
|
5MB |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 41256 |
(18) 41256 |
|
5MB |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
NONE |
|
5MB |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 41256 |
(18) 41256 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
(18) 411000 |
|
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(18) 411000 |
(18) 411000 |
|
8MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
JP1 |
JP2 |
|
512KB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
512KB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
1MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
1MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
1.5MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
1.5MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
2MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
2MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
2MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
4MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
4MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
5MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
5MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
5MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
6MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
6MB |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
1 & 12, 2 & 11, 3 & 10, 4 & 9, 5 & 8, 6 & 7 |
|
8MB |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
|
Note: Pins designated should be in the closed position. | ||