NCR CORPORATION
MODEL 3386-6XXX PC925/PC386
|
Processor |
80386 |
|
Processor Speed |
25MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
16MB (8MB on external memory card) |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
External memory card |
|
NPU Options |
80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J1 |
External battery |
J9 |
|
Speaker |
J7 |
External memory card |
SL1 |
|
Power LED & keylock |
J8 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Jumper not used |
J2 |
N/A | |
|
|
BIOS type select 27256 |
J4 |
Pins 1 & 2 closed |
|
BIOS type select 27128 |
J4 |
Pins 2 & 3 closed | |
|
|
NPU installed |
J5 |
Pins 1 & 2 closed |
|
NPU not installed |
J5 |
Pins 2 & 3 closed | |
|
|
Manufacturing diagnostics loop disabled |
SW/1 |
Off |
|
Manufacturing diagnostics loop enabled |
SW/1 |
On | |
|
Monitor type select color |
SW/2 |
On | |
|
Monitor type select monochrome |
SW/2 |
Off | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
411000 |
None |
|
8MB |
411000 |
(4) 1M x 9 |
|
Note: The location of banks 0 & 1 are unidentified. The number of chips for bank 0 are unidentified. | ||
|
DRAM JUMPER CONFIGURATION | |
|
Size |
J27 |
|
4MB |
Pins 1 & 2, 3 & 4 closed |
|
8MB |
Pins 2 & 3, 4 & 5 closed |
|
MISCELLANEOUS TECHINCAL NOTE |
|
The location of all pin 1s are unidentified. |