UNIDENTIFIED
286 VLSI TURBO MAINBOARD
|
Processor |
80286 |
|
Processor Speed |
12/16MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI/Award/Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J13 |
Power LED & keylock |
J16 |
|
Turbo switch |
J14 |
Reset switch |
J18 |
|
Turbo LED |
J15 |
Speaker |
J19 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
IOCHRDY select normal |
J4 |
pins 1 & 2 closed | |
|
IOCHRDY select add on card |
J4 |
pins 2 & 3 closed | |
|
Monitor type select color |
J7 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
J7 |
pins 1 & 2 closed | |
|
Shadow BIOS enabled |
J8 |
Open | |
|
Shadow BIOS disabled |
J8 |
Closed | |
|
Parity check enabled |
J12 |
pins 1 & 2 closed | |
|
Parity check disabled |
J12 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 4164 |
NONE |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
2MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | |||
|
Size |
J9 |
J10 |
J11 |
|
512KB |
Open |
Closed |
Closed |
|
640KB |
Closed |
Open |
Closed |
|
1MB |
Closed |
Open |
Closed |
|
2MB |
Open |
Open |
Open |
|
4MB |
Closed |
Open |
Open |