UNIDENTIFIED
VHP-1200
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
G-2 |
|
Max. onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
Unknown |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
P1 |
Turbo LED |
P4 |
|
Reset switch |
P2 |
External battery |
P7 |
|
Power LED & keylock |
P3 |
Turbo Switch |
W5 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
I/O half speed enabled |
SW1/switch 1 |
Off | |
|
I/O half speed disabled |
SW1/switch 1 |
On | |
|
Wait state select 0 wait states |
JP10 |
Closed | |
|
Wait state select 1 wait state |
JP10 |
Open | |
|
BIOS type select 27256 |
JP11 |
pins 1 & 2 closed | |
|
BIOS type select 27128 |
JP11 |
pins 2 & 3 closed | |
|
Monitor type select color |
JP12 |
pins 1 & 2 closed | |
|
Monitor type select monochrome |
JP12 |
pins 2 & 3 closed | |
|
Power good detect - do not alter |
JP16 |
N/A | |
|
DRAM CONFIGURATION | |||||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 2 |
JP7 |
JP8 |
JP9 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
Closed |
Closed |
Closed |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 4164 |
Closed |
Closed |
Open |
|
640KB |
(4) 44256 |
(2) 41256 |
(16) 4164 |
(2) 4164 |
Closed |
Closed |
Open |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 4164 |
Closed |
Open |
Closed |
|
1MB |
(4) 44256 |
(2) 41256 |
(16) 4164 |
(2) 4164 |
Closed |
Open |
Closed |
|
2MB |
(18) 411000 |
NONE |
NONE |
NONE |
Closed |
Open |
Open |
|
4MB |
(18) 411000 |
NONE |
(18) 411000 |
NONE |
Open |
Closed |
Closed |
|
KEYBOARD CONTROLLER CONFIGURATION | ||||
|
Pin Number |
JP13 |
JP14 |
JP15 |
JP18 |
|
23 |
Open |
Closed |
Open |
Open |
|
27 |
Open |
Open |
Closed |
Open |
|
30 |
Closed |
Open |
Open |
Open |
|
32 |
Open |
Open |
Open |
Closed |
|
Note:Make sure that the BIOS and the keyboard controller are compatible before shorting a controller pin for speed change via software. | ||||