UNIDENTIFIED
286LX-A
Processor |
80286 |
Processor Speed |
10/12MHz |
Chip Set |
VLSI |
Max. Onboard DRAM |
4MB |
Cache |
None |
BIOS |
AMI |
Dimensions |
330mm x 220mm |
I/O Options |
None |
NPU Options |
80287 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Power LED & keylock |
J18 |
Reset switch |
J29 |
External battery |
J22 |
Turbo LED |
J103 |
Speaker |
J23 |
Turbo switch |
J104 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper/Switch |
Position | |
» |
Battery select internal |
J28 |
pins 1 & 2 closed |
Battery select external |
J28 |
pins 2 & 3 closed | |
» |
Timing mode select fast |
J30 |
pins 1 & 2 closed |
Timing mode select slow |
J30 |
pins 2 & 3 closed | |
» |
CPU speed select 12MHz |
J102 |
pins 1 & 2 closed |
CPU speed select 10MHz |
J102 |
pins 2 & 3 closed | |
» |
Monitor type select color |
SW1/4 |
On |
Monitor type select monochrome |
SW1/4 |
Off |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
512KB |
(18) 41256 |
NONE |
640KB |
(18) 41256 |
(18) 4164 |
1MB |
(18) 41256 |
(18) 41256 |
2MB |
(18) 411000 |
NONE |
4MB |
(18) 411000 |
(18) 411000 |
DRAM SPEED CONFIGURATION | ||
Speed |
J10 |
J31 |
100ns/0 wait states |
pins 1 & 2 closed |
Closed |
120ns/1 wait state |
pins 2 & 3 closed |
Open |
DRAM JUMPER CONFIGURATION | |||
Size |
SW1/1 |
SW1/2 |
SW1/3 |
512KB |
On |
On |
On |
640KB |
Off |
On |
On |
1MB |
On |
Off |
On |
2MB |
Off |
Off |
On |
4MB |
On |
On |
Off |