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 |