UNITRON U2908 B-V 4 (Identified by Giannis Karavasilis)
10MHz/8MHz SYSTEM BOARD
|
Processor |
8088 |
|
Processor Speed |
8/10MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
640KB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
8087 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
JP1 |
Speaker |
JP4 |
|
Keylock |
JP2 |
Power LED |
JP7 |
|
Turbo LED |
JP3 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Switch |
Position | |
|
NPU enabled |
SW1/2 |
Off | |
|
NPU disabled |
SW1/2 |
On | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
256K |
(9) 41256 |
NONE |
NONE |
NONE |
|
512K |
(9) 41256 |
(9) 41256 |
NONE |
NONE |
|
640K |
(9) 41256 |
(9) 41256 |
(9) 4164 |
(9) 4164 |
|
DRAM JUMPER CONFIGURATION | ||
|
Size |
SW1/3 |
SW1/4 |
|
None |
On |
On |
|
256KB |
Off |
Off |
|
512KB |
On |
Off |
|
640KB |
Off |
On |
|
CPU SPEED CONFIGURATION | |
|
Speed |
SW1/1 |
|
4.77MHz |
Off |
|
8MHz |
On |
|
10MHz |
On |
|
MONITOR TYPE SELECTION | ||
|
Type |
SW1/5 |
SW1/6 |
|
None |
On |
On |
|
Color 40 x 20 |
Off |
On |
|
Color 80 x 25 |
On |
Off |
|
Monochrome or both |
Off |
Off |
|
FLOPPY DRIVE CONFIGURATION | ||
|
Number of drives |
SW1/7 |
SW1/8 |
|
1 |
On |
On |
|
2 |
Off |
On |
|
3 |
On |
Off |
|
4 |
Off |
Off |