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 |