UNIDENTIFIED
TXM/10-IV
|
Processor |
8088 |
|
Processor Speed |
4.77/10MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
1MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
8087 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
JP7 |
Turbo switch |
JP10 |
|
Reset switch |
JP8 |
Keylock |
JP11 |
|
Turbo LED |
JP9 |
Power LED |
JP12 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Parity enabled |
JP6 |
Open |
|
Parity disabled |
JP6 |
Closed | |
|
|
Factory configured - do not alter |
SW1/1 |
Off |
|
|
NPU disabled |
SW1/2 |
On |
|
NPU enabled |
SW1/2 |
Off | |
|
|
Factory configured - do not alter |
SW1/3 |
Off |
|
|
Factory configured - do not alter |
SW1/4 |
Off |
|
DRAM CONFIGURATION | ||||||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2A |
Bank 3A |
Bank 2B |
Bank 3B |
Bank 2C |
Bank 3C |
|
256KB |
(2)44256 |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
|
512KB |
(2)44256 |
(2)44256 |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(2)44256 |
(2)44256 |
NONE |
NONE |
(2)4464 |
(2)4464 |
NONE |
NONE |
|
640KB |
(2)44256 |
(2)44256 |
NONE |
NONE |
(2)4164 |
(2)4164 |
(6)4164 |
(6)4164 |
|
1MB |
(2)44256 |
(2)44256 |
(2)44256 |
(2)44256 |
NONE |
NONE |
NONE |
NONE |
|
DRAM PARITY CONFIGURATION | ||||||||
|
Size |
P 0 |
P 1 |
P 2A |
P 3A |
P 2B |
P 3B |
P 2C |
P 3C |
|
256KB |
(1)41256 |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
|
512KB |
(1)41256 |
(1)41256 |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(1)41256 |
(1)41256 |
NONE |
NONE |
NONE |
NONE |
(1)4164 |
(1)4164 |
|
640KB |
(1)41256 |
(1)41256 |
NONE |
NONE |
NONE |
NONE |
(2)4164 |
(2)4164 |
|
1MB |
(1)41256 |
(1)41256 |
(1)41256 |
(1)41256 |
NONE |
NONE |
NONE |
NONE |
|
DRAM SWITCH CONFIGURATION | ||
|
Size |
SW1/9 |
SW1/10 |
|
256KB |
On |
On |
|
512KB |
Off |
On |
|
640KB |
On |
Off |
|
1MB |
Off |
Off |
|
VIDEO TYPE CONFIGURATION | ||
|
Type |
SW1/5 |
SW1/6 |
|
CGA (40 x 25) |
Off |
On |
|
CGA (80 x 25) |
On |
Off |
|
EGA/VGA |
On |
On |
|
MGA |
Off |
Off |
|
FLOPPY DRIVE CONFIGURATION | ||
|
Floppy drives installed |
SW1/7 |
SW1/8 |
|
1 |
On |
On |
|
2 |
Off |
On |
|
3 |
On |
Off |
|
4 |
Off |
Off |
|
BIOS CONFIGURATION | |
|
Setting |
CN3 |
|
27128 installed in U80 |
pins 2 & 17, 3 & 16, 5 & 14, 7 & 12 closed |
|
27256 installed in U65 & 2764 installed in U80 |
pins 1 & 18, 4 & 15, 6 & 13 closed |