UNIDENTIFIED
TOPCAT 386/486DX
Processor | 80386DX/80486DX |
Processor Speed | 25/33MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 64MB |
Cache | None |
BIOS | Unidentified |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 80387DX/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP31 | Reset switch | JP65 |
Power LED & keylock | JP42 | Turbo switch | JP66 |
External battery | JP60 | Turbo LED | JP67 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Pipeline mode disabled | JP1 | Open |
Pipeline mode enabled | JP1 | Closed | |
» | Ready source type select NPX ready | jp2 | pins 1 & 2 closed |
Ready source type select 330 ready | jp2 | pins 2 & 3 closed | |
» | Clock speed control select keyboard | JP10 | pins 1 & 2 closed |
Clock speed control select external switch | JP10 | pins 2 & 3 closed | |
» | Parity check disabled | JP32 | Open |
Parity check enabled | JP32 | Closed | |
Monitor type select monochrome | JP41 | Open | |
Monitor type select color | JP41 | Closed | |
» | Battery type select internal | JP61 | pins 1 & 2 closed |
Battery type select external | JP61 | pins 2 & 3 closed | |
» | Power good signal detect from power supply | JP62 | pins 1 & 2 closed |
Power good signal detect from board | JP62 | pins 2 & 3 closed | |
» | CMOS memory normal operation | JP68 | pins 1 & 2 closed |
CMOS memory clear | JP68 | pins 3 & 4 closed |
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 |
3MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | 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 |
5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x 9 | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
17MB | (4) 256K x 9 | (4) 4M x 9 | NONE | NONE |
18MB | (4) 256K x 9 | (4) 256K x 9 | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
33MB | (4) 4M x 9 | (4) 4M x 9 | (4) 256K x 9 | NONE |
34MB | (4) 256K x 9 | (4) 256K x 9 | (4) 4M x 9 | (4) 4M x 9 |
36MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
CPU TYPE CONFIGURATION | |||||
Type | JP81 | JP83 | JP84 | JP85 | JP86 |
80386 | Open | 1 & 2 | 1 & 2 | 1 & 2 | Open |
80486 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |
BIOS CONFIGURATION | ||
Type | JP21 | JP22 |
27128 | Open | Open |
27256 | Open | Closed |
27512 | Closed | Closed |