JE 3025A/33A Motherboard Settings and Configuration
AMERICAN MEGATRENDS, INC.
JE 3025A/33A
Processor | 80386SX |
Processor Speed | 25/33MHz |
Chip Set | Unknown |
Max. Onboard DRAM | 32MB |
SRAM Cache | 64KB (Factory configured) |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot, CPU expansion card slot |
NPU Options | 80387 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Turbo switch | J8 |
Turbo LED | J5 | Reset switch | J14 |
Speaker | J6 | 32-bit external memory card | S1 |
Power LED & keylock | J7 | CPU expansion card | S2 |
USER CONFIGURABLE SETTINGS | ||||
Function | Jumper/Switch | Position | ||
| DRAM address sequence select bank 0, then bank 1 | J3 | pins 1 & 2 closed pins 3 & 4 closed | |
| DRAM address sequence select bank 1, then bank 0 | J3 | pins 2 & 3 closed pins 4 & 5 closed | |
» | Factory configured - do not alter | SW1/switch 1 | open | |
» | Monitor type select color | SW1/switch 2 | closed | |
| Monitor type select monochrome | SW1/switch 2 | open | |
| Note: The cache memory is factory installed, and is not alterable. The size and location of the Cache and TAG chips are unknown. | |||
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 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
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