ROBOTECH, INC.
GMB-386UMC
|
Processor |
80386DX/CX486DLC |
|
Processor Speed |
20/25/33/40MHz |
|
Chip Set |
UMC |
|
Max. Onboard DRAM |
64MB |
|
Cache |
32/128KB |
|
BIOS |
AMI |
|
Dimensions |
220mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387DX/CX487DLC |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Turbo LED |
J5 |
|
Reset switch |
J3 |
External battery |
J6 |
|
Turbo switch |
J4 |
Speaker |
J10 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Turbo switch select turbo |
J4 |
Open |
|
Turbo switch select normal |
J4 |
Closed | |
|
|
NPU disabled |
JP6 |
pins 1 & 2 closed |
|
NPU enabled |
JP6 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP8 |
pins 2 & 3 closed |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
NONE |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
32KB |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
(1) 8K x 8 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP3 |
JP4 |
|
32KB |
Open |
Open |
|
128KB |
Closed |
Closed |
|
CPU SPEED CONFIGURATION | ||
|
Speed |
JP1 |
JP2 |
|
20MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
25MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
33MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
40MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |