UNIDENTIFIED
TURBO MAINBOARD MB-101
Processor |
8088 |
Processor Speed |
10MHz |
Chip Set |
None |
Max. Onboard DRAM |
640KB |
Cache |
None |
BIOS |
Unidentified |
Dimensions |
220mm x 220mm |
I/O Options |
None |
NPU Options |
8087 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Power LED & keylock |
CN1 |
Turbo switch |
JP3 |
Speaker |
CN3 |
Reset switch |
JP4 |
Turbo LED |
JP1 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper/Switch |
Position | |
» |
Parity check enabled |
JP2 |
Open |
Parity check disabled |
JP2 |
Closed | |
» |
Factory configured - do not alter |
SW1/1 |
Off |
» |
NPU disabled |
SW1/2 |
Off |
NPU enabled |
SW1/2 |
Off |
DRAM CONFIGURATION | ||||||
Bank |
256KB |
256KB |
512KB |
512KB |
640KB |
640KB |
Bank 0 |
(8) 41256 |
NONE |
(8) 41256 |
NONE |
(8) 41256 |
NONE |
Bank 1 |
NONE |
NONE |
(8) 41256 |
NONE |
(8) 41256 |
NONE |
Bank 2 |
NONE |
NONE |
NONE |
NONE |
(8) 4164 |
NONE |
Bank 3 |
NONE |
NONE |
NONE |
NONE |
(8) 4164 |
NONE |
Bank 4 |
NONE |
(2) 44256 |
NONE |
(2) 44256 |
NONE |
(2) 44256 |
Bank 5 |
NONE |
NONE |
NONE |
(2) 44256 |
NONE |
(2) 44256 |
Bank 6 |
NONE |
NONE |
NONE |
NONE |
NONE |
(2) 4464 |
Bank 7 |
NONE |
NONE |
NONE |
NONE |
NONE |
(2) 4464 |
U9 |
(1) 41256 |
(1) 41256 |
(1) 41256 |
(1) 41256 |
(1) 41256 |
(1) 41256 |
U18 |
NONE |
NONE |
(1) 41256 |
(1) 41256 |
(1) 41256 |
(1) 41256 |
U27 |
NONE |
NONE |
NONE |
NONE |
(1) 4164 |
(1) 4164 |
U36 |
NONE |
NONE |
NONE |
NONE |
(1) 4164 |
(1) 4164 |
Note:If parity checking is disabled, then DRAM is not needed in U9, U18, U27, and U36. |
DRAM SWITCH CONFIGURATION | ||
Size |
SW1/3 |
SW1/4 |
256KB |
Open |
Open |
512KB |
Closed |
Open |
640KB |
Closed |
Closed |
FLOPPY DRIVE CONFIGURATION | ||
Drives installed |
SW1/7 |
SW1/8 |
1 |
(8) 41256 |
NONE |
2 |
(8) 41256 |
NONE |
3 |
(8) 4164 |
NONE |
4 |
(8) 4164 |
NONE |
MONITOR CONFIGURATION | ||
Type |
SW1/5 |
SW1/6 |
MGA |
Off |
Off |
CGA |
On |
Off |
EGA |
On |
On |