NEC TECHNOLOGIES, INC.
POWERMATE 386SXMB
Processor | 80386SX |
Processor Speed | 12/16MHz |
Chip Set | ETEQ |
Max. Onboard DRAM | 32MB |
Cache | 16/32KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | Proprietary external memory card slot |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP8 | Proprietary external memory card | S2 |
External battery | JP10 | Reset switch | SW1 |
Power LED & keylock | JP11 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Monitor type select color | JP1 | closed |
Monitor type select monochrome | JP1 | open | |
» | Auxiliary Reference Burst enabled | JP7 | pins 1 & 2 closed |
Auxiliary Reference Burst disabled | JP7 | pins 2 & 3 closed | |
Battery select internal | JP9 | pins 1 & 2 closed | |
Battery select external | JP9 | pins 2 & 3 closed | |
» | Proprietary system logic enabled | JP31 | closed |
» | Proprietary system logic enabled | JP31 | closed |
» | Main Reference Burst enabled | JP45 | pins 1 & 2 closed |
Main Reference Burst disabled | JP45 | pins 3 & 4 closed | |
» | Factory configured - do not alter | JP48 | open |
» | Factory configured - do not alter | S1/switch 1 | open |
» | Factory configured - do not alter | S1/switch 2 | open |
» | Redundancy circuit duplication enabled | S1/switch 3 | closed |
Redundancy circuit duplication disabled | S1/switch 3 | open | |
» | Cache tag bit size select 16-bit | S1/switch 4 | open |
Cache tag bit size select 32-bit | S1/switch 4 | closed | |
» | Board power select Direct Current | S1/switch 5 | open |
Board power select Alternating Current (onboard converter) | S1/switch 5 | closed | |
» | Flash ROM programming disabled | S1/switch 6 | open |
Flash ROM programming enabled | S1/switch 6 | closed | |
» | Factory configured - do not alter | J1 | open |
» | Factory configured - do not alter | J2 | open |
» | Factory configured - do not alter | J3 | open |
» | Factory configured - do not alter | J4 | open |
» | Factory configured - do not alter | J5 | open |
» | Factory configured - do not alter | J7 | open |
» | Factory configured - do not alter | J10 | open |
» | Factory configured - do not alter | J23 | open |
» | Factory configured - do not alter | J68 | open |
» | Factory configured - do not alter | J101 | open |
» | Factory configured - do not alter | J102 | open |
» | Factory configured - do not alter | J103 | open |
» | Factory configured - do not alter | J206 | open |
» | Factory configured - do not alter | J207 | open |
» | Factory configured - do not alter | J208 | open |
» | Factory configured - do not alter | J209 | open |
» | Factory configured - do not alter | J212 | open |
» | Factory configured - do not alter | J213 | open |
Note:Locations of jumpers J1 - J213 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) 256K x 9 | (4) 1 M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 256K x 9 | (4) 4M x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||
Size | Cache SRAM | TAG |
16KB | (4) 8K x 4 | (1) 2K x 2 |
32KB | (8) 8K x 4 | (1) 2K x 2 |
CACHE JUMPER CONFIGURATION | |||||
Jumper | JP4 | JP5 | JP6 | JP20 | JP21 |
16KB | Closed | pins 1 & 2 closed | pins 2 & 3 closed | Open | Closed |
32KB | Open | pins 2 & 3 closed | pins 1 & 2 closed | Closed | Open |