UNIDENTIFIED
SUPER TURBO-XT
|
Processor |
8088 (exact location is unknown) |
|
Processor Speed |
4.77/12MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
1MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
8087(exact location is unknown) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED |
CN3 |
Keylock |
CN6 |
|
Reset switch |
CN4 |
Turbo LED |
CN7 |
|
Speaker |
CN5 |
Turbo switch |
CN8 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
CPU type select NEC V20 |
J5 |
Closed |
|
CPU type select 8088 |
J5 |
Open | |
|
|
RAM wait state select 0 wait state |
J6 |
Closed |
|
RAM wait state select 1 wait state |
J6 |
Open | |
|
|
ROM wait state select 0 wait state |
J7 |
Closed |
|
ROM wait state select 1 wait state |
J7 |
Open | |
|
|
Factory configured - do not alter |
J8 |
Closed |
|
|
Parity check disabled |
SW1/1 |
On |
|
Parity check disabled |
SW1/1 |
Off | |
|
|
NPU disabled |
SW1/2 |
On |
|
NPU enabled |
SW1/2 |
Off | |
|
DRAM CONFIGURATION | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Bank 4 |
|
256KB |
(2) 414256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
(2) 414256 |
(2) 414256 |
NONE |
NONE |
NONE |
|
640KB |
(2) 414256 |
(2) 414256 |
(4) 41464 |
NONE |
NONE |
|
1MB |
(2) 414256 |
(2) 414256 |
NONE |
(2) 414256 |
(2) 414256 |
|
DRAM CONFIGURATION (PARITY) | |||||
|
Size |
Parity 0 |
Parity 1 |
Parity 2 |
Parity 3 |
Parity 4 |
|
256KB |
(1) 41256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
(1) 41256 |
(1) 841256 |
NONE |
NONE |
NONE |
|
640KB |
(1) 41256 |
(1) 41256 |
(2) 4164 |
NONE |
NONE |
|
1MB |
(1) 41256 |
(1) 41256 |
NONE |
(1) 41256 |
(1) 41256 |
|
Note:If SW1 is disabled, parity chips are not needed. | |||||
|
DRAM SWITCH CONFIGURATION | ||
|
Size |
SW1/3 |
SW1/4 |
|
0KB |
On |
On |
|
256KB |
Off |
On |
|
512KB |
Off |
On |
|
640KB |
On |
Off |
|
1MB |
Off |
Off |
|
MONITOR CONFIGURATION | ||
|
Type |
SW1/5 |
SW1/6 |
|
None installed |
On |
On |
|
Monochrome |
Off |
Off |
|
VGA (40 x 25) |
Off |
On |
|
VGA (80 x 25) |
On |
Off |
|
Note: Without ERSO BIOS 3301 installed. | ||
|
MONITOR CONFIGURATION | ||
|
Type |
SW1/5 |
SW1/6 |
|
Monochrome |
On |
On |
|
VGA (40 x 25) |
Off |
On |
|
VGA (80 x 25) |
On |
Off |
|
Note: With ERSO BIOS 3301 installed. | ||
|
DISK DRIVE CONFIGURATION | ||
|
Drives installed |
SW1/7 |
SW1/8 |
|
1 |
On |
On |
|
2 |
Off |
On |
|
3 |
On |
Off |
|
4 |
Off |
Off |