UNIDENTIFIED
286-SYSTEM BOARD
Processor |
AM286/80286 |
Processor Speed |
6/8/10/12/16MHz |
Chip Set |
VLSI |
Video Chip Set |
None |
Maximum Onboard Memory |
4MB |
Maximum Video Memory |
None |
Cache |
None |
BIOS |
AMI/Award/Phoenix |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
80287 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Speaker |
J1 |
Turbo LED |
J4 |
Power LED & keylock |
J2 |
Turbo switch |
J5 |
Reset switch |
J3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
BIOS type select 27128 |
JP1 |
Pins 2 & 3 closed | |
BIOS type select 27256 |
JP1 |
Pins 1 & 2 closed | |
Monitor type select color |
JP7 |
Closed | |
Monitor type select monochrome |
JP7 |
Open | |
Wait state select 0 wait states |
JP8 |
Closed | |
Wait state select 1 wait state |
JP8 |
Open |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
512KB |
(18) 41256 |
None |
None |
None |
512KB |
None |
None |
(2) 256K x 9 |
None |
640KB |
(18) 41256 |
(18) 4164 |
None |
None |
1MB |
(18) 41256 |
(18) 41256 |
None |
None |
1MB |
None |
None |
(2) 256K x 9 |
(2) 256K x 9 |
2MB |
(18) 411000 |
None |
None |
None |
2MB |
None |
None |
(2) 1M x 9 |
None |
4MB |
(18) 411000 |
(18) 411000 |
None |
None |
4MB |
None |
None |
(2) 1M x 9 |
(2) 1M x 9 |
DRAM JUMPER CONFIGURATION | |||
Size |
JP2 |
JP3 |
JP4 |
512KB |
Open |
Closed |
Closed |
640KB |
Closed |
Open |
Open |
1MB |
Closed |
Open |
Closed |
2MB |
Closed |
Closed |
Open |
4MB |
Closed |
Closed |
Closed |
CPU SPEED SELECTION | |
Speed |
JP6 |
6/12MHz |
Open |
8/12MHz |
Closed |