UNIDENTIFIED
CMC-820
|
Processor |
80386DX |
|
Processor Speed |
10/20MHz |
|
Chip Set |
C & T |
|
Max. onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
Unknown |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory cards (2) |
|
NPU Options |
80387DX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Speaker |
J11 |
|
Turbo LED |
J7 |
Keylock |
J12 |
|
Reset Switch |
J10 |
32-bit system memory cards |
S1 & S2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
BIOS type select 27128 or 27256 |
J3 |
pins 1 & 2 closed | |
|
BIOS type select 27512 |
J3 |
pins 2 & 3 closed | |
|
Monitor type select color |
J5 |
Closed | |
|
Monitor type select monochrome |
J5 |
Open | |
|
NPU enabled |
J6 |
Closed | |
|
NPU disabled |
J6 |
Open | |
|
NPU type select Intel or 80387 |
J9 |
Closed | |
|
NPU type select Weitek 3167 |
J9 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
10MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
Note:The numbering of bank 0 and bank 1 are located on the system board. Banks 2 & 3 are located on the external memory card. | ||||
|
CPU SPEED CONFIGURATION | ||
|
Speed |
J4 |
J8 |
|
10MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
20MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port DB-9 |
J101 |
Parallel port DB-9 |
J103 |
|
Serial port 10-pins header |
J102 |
Parallel port 10-pins header |
J104 |
|
I/O CONFIGURATION | ||||
|
Port |
SW1/switch 1 |
SW1/switch 2 |
SW1/switch 3 |
SW1/switch 4 |
|
Serial port DB-9 |
On |
Off |
On |
On |
|
Serial port 10-pins header |
On |
On |
On |
Off |
|
Parallel port DB-9 |
On |
On |
Off |
On |
|
Parallel port 10-pins header |
Off |
On |
On |
On |