MICRO COMPUTER SYSTEMS CORPORATION
V-286
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
W6 |
Speaker |
W15 |
|
Turbo LED |
W7 |
External battery |
W16 |
|
Turbo switch |
W11 |
Power LED & keylock |
W18 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Zero wait state enabled |
SW1/1 |
Off |
|
Zero wait state disabled |
SW1/1 |
On | |
|
|
Keyboard controlled speed switch enabled |
SW1/2 |
On |
|
Keyboard controlled speed switch disabled |
SW1/2 |
Off | |
|
|
Monitor type select color |
SW1/3 |
Off |
|
Monitor type select monochrome |
SW1/3 |
On | |
|
|
NPU clock speed select 7.159MHz |
SW1/4 |
On |
|
NPU clock speed select 14.318MHz |
SW1/4 |
Off | |
|
|
Fastmode enabled |
SW1/5 |
On |
|
Fastmode disabled |
SW1/5 |
Off | |
|
|
ROM wait state select 2 wait states |
SW1/6 |
On |
|
ROM wait state select 1 wait state |
SW1/6 |
Off | |
|
|
Factory configured - do not alter |
SW1/7 |
Off |
|
|
AT bus speed select 6MHz |
SW1/8 |
On |
|
AT bus speed select 8MHz |
SW1/8 |
Off | |
|
|
Factory configured - do not alter |
W8 |
Closed |
|
|
BIOS type select 27256 |
W9 |
pins 2 & 3 closed |
|
BIOS type select 27128 |
W9 |
pins 1 & 2 closed | |
|
|
Battery type select internal |
W12 |
pins 1 & 2 closed |
|
Battery type select external |
W12 |
pins 2 & 3 closed | |
|
|
Parity enabled |
W13 |
pins 2 & 3 closed |
|
Parity disabled |
W13 |
pins 1 & 2 closed | |
|
Note: The locations of W12 & W13 are unidentified. | |||
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
Bank 2 |
Bank 3 |
|
512KB |
(16) 41256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(16) 41256 |
(2) 41256 |
(16) 4164 |
(2) 4164 |
NONE |
NONE |
|
640KB |
(16) 41256 |
(2) 41256 |
NONE |
(2) 4164 |
(4) 44256 |
NONE |
|
1MB |
(16) 41256 |
(2) 41256 |
(16) 41256 |
(2) 41256 |
NONE |
NONE |
|
1MB |
NONE |
(2) 41256 |
NONE |
(2) 41256 |
(4) 44256 |
(4) 44256 |
|
2MB |
(16) 411000 |
(2) 411000 |
NONE |
NONE |
NONE |
NONE |
|
4MB |
(16) 411000 |
(2) 411000 |
(16) 411000 |
(2) 411000 |
NONE |
NONE |
|
DRAM JUMPER CONFIGURATION | |||
|
Size |
W1 |
W2 |
W3 |
|
512KB |
Closed |
Closed |
Closed |
|
640KB |
Closed |
Closed |
Open |
|
640KB |
Closed |
Closed |
Open |
|
1MB |
Open |
Closed |
Closed |
|
1MB |
Open |
Closed |
Closed |
|
2MB |
Open |
Closed |
Open |
|
4MB |
Closed |
Open |
Closed |