UNIDENTIFIED
TOPCAT 386SX
Processor |
80386SX |
Processor Speed |
16/20/25MHz |
Chip Set |
Unidentified |
Max. Onboard DRAM |
32MB |
Cache |
None |
BIOS |
AMI/Award/Phoenix/Quadtel |
Dimensions |
236mm x 220mm |
I/O Options |
None |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Speaker |
CN1 |
Turbo LED |
JP1 |
External battery |
CN3 |
Turbo switch |
JP6 |
Power LED & keylock |
CN4 |
Reset switch |
JP10 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
Power good signal detect from board |
CN2 |
pins 1 & 2 closed | |
Power good signal detect from power supply |
CN21 |
pins 2 & 3 closed | |
CMOS memory normal operation |
HDR1 |
pins 1 & 2 closed | |
CMOS memory clear |
HDR1 |
pins 3 & 4 closed | |
BIOS type select Phoenix |
JP2 |
pins 1 & 2 closed | |
BIOS type select AMI/Award/Quadtel |
JP2 |
pins 2 & 3 closed | |
CPU speed select hardware/external switch |
JP3 |
pins 1 & 2 closed | |
CPU speed select keyboard control |
JP3 |
pins 2 & 3 closed | |
Monitor type select color |
JP4 |
Closed | |
Monitor type select monochrome |
JP4 |
Open | |
Parity enabled |
JP7 |
Closed | |
Parity disabled |
JP7 |
Open |
DRAM CONFIGURATION | ||||||
Size |
Bank 0A |
Bank 1A |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
512KB |
(4) 44256 |
NONE |
NONE |
NONE |
NONE |
NONE |
1MB |
(4) 44256 |
(4) 44256 |
NONE |
NONE |
NONE |
NONE |
1.5MB |
(4) 44256 |
NONE |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
2MB |
NONE |
NONE |
(2) 1M x 9 |
NONE |
NONE |
NONE |
3MB |
(4) 44256 |
(4) 44256 |
(2) 1M x 9 |
NONE |
NONE |
NONE |
4MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
4.5MB |
(4) 44256 |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
5MB |
(4) 44256 |
(4) 44256 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
6MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
8MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
8MB |
NONE |
NONE |
(2) 4M x 9 |
NONE |
NONE |
NONE |
9MB |
(4) 44256 |
(4) 44256 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
9MB |
(4) 44256 |
(4) 44256 |
(2) 4M x 9 |
NONE |
NONE |
NONE |
12MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
16MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
16.5MB |
(4) 44256 |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
17MB |
(4) 44256 |
(4) 44256 |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
18MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 1M x 9 |
NONE |
20MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
20MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
24MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
32MB |
NONE |
NONE |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
DRAM PARITY CONFIGURATION | ||
Size |
P 0 |
P 1 |
512KB |
(2) 41256 |
NONE |
1MB |
(2) 41256 |
(2) 41256 |
1.5MB |
(2) 41256 |
(2) 41256 |
3MB |
(2) 41256 |
(2) 41256 |
4.5MB |
(2) 41256 |
NONE |
5MB |
(2) 41256 |
(2) 41256 |
9MB |
(2) 41256 |
(2) 41256 |
9MB |
(2) 41256 |
(2) 41256 |
16.5MB |
(2) 41256 |
NONE |
17MB |
(2) 41256 |
(2) 41256 |
17MB |
(2) 41256 |
(2) 41256 |
Note: If Bank 0A and/or Bank 1A is filled, use this table to determine correct parity. |