UNIDENTIFIED
VLSI 89402-2
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
VLSI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
4MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
AMI/Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
JP10 |
Power LED & keylock |
JP15 |
|
Turbo switch |
JP11 |
External battery |
JP17 |
|
Speaker |
JP14 |
Reset switch |
JP21 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Monitor type select color |
JP4 |
Closed | |
|
Monitor type select monochrome |
JP4 |
Open | |
|
Turbo enabled |
JP11 |
Closed | |
|
Turbo disabled & switchable through keyboard (CRTL, ALT, +/-) |
JP11 |
Open | |
|
ROM wait state select 2 wait states |
JP9 |
Closed | |
|
ROM wait state select 1 wait state |
JP9 |
Open | |
|
|
Battery type select internal |
JP16 |
Closed |
|
Battery type select external |
JP16 |
Open | |
|
|
BIOS type select 27128 |
JP18 |
Open |
|
BIOS type select 27256 |
JP18 |
Closed | |
|
|
Fast mode enabled |
JP19 |
Closed |
|
Fast mode disabled |
JP19 |
Open | |
|
Wait state select 0 wait states |
JP20 |
Closed | |
|
Wait state select 1 wait state |
JP20 |
Open | |
|
|
Factory configured - do not alter |
JP22 |
Unidentified |
|
|
Factory configured - do not alter |
JP23 |
Unidentified |
|
Parity check disabled |
JP24 |
Pins 1 & 2 closed | |
|
Parity check enabled |
JP24 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Parity |
|
512KB |
(4) 44256 |
None |
None |
None |
(2) 41256 |
|
512KB |
None |
None |
(2) 256K x 9 |
None |
None |
|
640KB |
(4) 44256 |
(4) 4464 |
None |
None |
None |
|
1MB |
(4) 44256 |
(4) 44256 |
None |
None |
(2) 41256 |
|
1MB |
None |
None |
(2) 256K x 9 |
(2) 256K x 9 |
None |
|
2MB |
(16) 411000 |
None |
None |
None |
None |
|
2MB |
None |
None |
(2) 1M x 9 |
None |
None |
|
4MB |
(16) 411000 |
(16) 411000 |
None |
None |
(4) 411000 |
|
4MB |
None |
None |
(2) 1M x 9 |
(2) 1M x 9 |
None |
|
Note: The location of banks 0, 1, 2 & 3 are unidentified. Board also accepts ZIP memory, but the configurations are unidentified. | |||||
|
DRAM JUMPER CONFIGURATION | |||
|
Size |
JP1 |
JP2 |
JP3 |
|
512KB |
Closed |
Closed |
Closed |
|
640KB |
Closed |
Open |
Closed |
|
1MB |
Closed |
Closed |
Open |
|
2MB |
Closed |
Open |
Open |
|
4MB |
Open |
Closed |
Closed |
|
CPU SPEED SELECTION | |
|
Speed |
JP12 |
|
6/12MHz |
Open |
|
8/12MHz |
Closed |