UNIDENTIFIED
C & T TURBO MAINBOARD
|
Processor |
80286 |
|
Processor Speed |
12 MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI/C & T |
|
Dimensions |
260mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
BAT |
Turbo LED |
JP1 |
|
Power LED & keylock |
J1 |
Reset switch |
JP2 |
|
Speaker |
J2 |
Turbo switch |
JP3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
NPU synchronous with CPU |
JP4 |
pins 1 & 2 closed |
|
NPU asynchronous with CPU |
JP4 |
pins 2 & 3 closed | |
|
|
Monitor type select color |
JP6 |
pins 2 & 3 closed |
|
Monitor type select monochrome |
JP6 |
pins 1 & 2 closed | |
|
|
Power good signal detect from power supply |
JP7 |
pins 2 & 3 closed |
|
Power good signal detect from board |
JP7 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION (DIP) | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(4) 44256 |
NONE |
|
640KB |
(4) 44256 |
(4) 4464 |
|
1MB |
(4) 44256 |
(4) 44256 |
|
DRAM PARITY CONFIGURATION (DIP) | ||
|
Size |
P0 |
P1 |
|
512KB |
(2) 41256 |
NONE |
|
640KB |
(2) 41256 |
(2) 4164 |
|
1MB |
(2) 41256 |
(2) 41256 |
|
DRAM CONFIGURATION (SIP) | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |