AMERICAN MEGATRENDS, INC.
80386B
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
C & T |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
16MB (8MB on external memory card) |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
External memory cards (2) |
|
NPU Options |
80287 (exact location unidentified)/80387SX/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J17 |
Turbo LED |
J22 |
|
Speaker |
J18 |
External memory cards |
SL1 & SL2 |
|
External battery |
J20 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Jumper information unavailable |
J19 |
Unidentified | |
|
80287 installed |
JP1 |
Closed | |
|
80287 not installed |
JP1 |
Open | |
|
Monitor type select color |
JP3 |
Pins 1 & 2 closed | |
|
Monitor type select monochrome |
JP3 |
Pins 2 & 3 closed | |
|
Jumper information unavailable |
JP5 |
Unidentified | |
|
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 |
(36) 41256 |
(36) 41256 |
|
4MB |
(4) 1M x 9 |
None |
None |
None |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
None |
None |
|
10MB |
(4) 1M x 9 |
(4) 1M x 9 |
(36) 41256 |
(36) 41256 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(36) 411000 |
(36) 411000 |
|
Note: Banks 2 & 3 are located on the external memory card. | ||||
|
CPU SPEED SELECTION | |
|
Speed |
J21 |
|
16MHz |
Pins 1 & 2 closed |
|
20MHz |
Pins 2 & 3 closed |
|
25MHz |
Pins 2 & 3 closed |
|
NPU TYPE SELECTION | ||
|
Type |
JP11 |
JP12 |
|
80387 installed |
Closed |
Closed |
|
80387 not installed |
Open |
Open |
|
DRAM JUMPER CONFIGURATION | ||
|
Setting |
JP1 |
JP2 |
|
Card configured as Bank 0 & 1 |
Pins 1 & 2, 4 & 5 closed |
Pins 1 & 2, 4 & 5 closed |
|
Card configured as Bank 2 & 3 |
Pins 2 & 3, 5 & 6 closed |
Pins 2 & 3, 5 & 6 closed |
|
Note: If all 4 banks are populated, memory card must be set as banks 2 & 3. Jumpers JP1 & JP2 are incorrectly labeled in the card. The correct label should read banks selection. | ||