LASER COMPUTER, INC.
LASER 286X (VER. A)
|
Processor |
80286 |
|
Processor Speed |
Unidentified |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
1MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
IBM/Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Power LED & keylock |
J8 |
|
Turbo switch |
J4 |
External battery |
J12 |
|
Turbo LED |
J5 |
Reset switch |
J14 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
BIOS enable select active low enable |
J2 |
Pins 1 & 2 closed |
|
BIOS enable select active high enable |
J2 |
Pins 2 & 3 closed | |
|
BIOS type select 27256 |
J3 |
Pins 1 & 2 closed | |
|
BIOS type select 27128 |
J3 |
Pins 2 & 3 closed | |
|
Turbo disabled |
J4 |
Pins 1 & 2 closed | |
|
Turbo enabled |
J4 |
Pins 2 & 3 closed | |
|
Wait state select 0 wait states |
J6 |
Closed | |
|
Wait state select 1 wait state |
J6 |
Open | |
|
BIOS type select IBM/Phoenix |
J13 |
Pins 2 & 3 closed | |
|
BIOS type select all other BIOS types |
J13 |
Pins 1 & 2 closed | |
|
Monitor type select color |
SW1 |
Pins 1 & 2 closed | |
|
Monitor type select monochrome |
SW1 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
256KB |
(9) 41256 |
None |
None |
None |
|
512KB |
(9) 41256 |
(9) 41256 |
None |
None |
|
640KB |
(9) 41256 |
(9) 41256 |
(9) 4164 |
(9) 4164 |
|
1MB |
(9) 41256 |
(9) 41256 |
(9) 41256 |
(9) 41256 |
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
J9 |
J10 |
|
256KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
512KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
640KB |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
1MB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |