DTK COMPUTER, INC.
PKM-2500 (VER. 1.20)
|
Processor |
80486SX |
|
Processor Speed |
25MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
16MB (8MB on external memory card) |
|
Cache |
64/256KB |
|
BIOS |
DTK/Phoenix |
|
Dimensions |
355mm x 305mm |
|
I/O Options |
32-bit external memory card (PEI-306) |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Chassis fan power |
J1 |
Speaker |
J5 |
|
Power LED & keylock |
J2 |
Turbo switch |
J6 |
|
Turbo LED |
J3 |
32-bit external memory card |
SL1 |
|
Reset switch |
J4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
BIOS type select 27256 |
W3 |
pins 1 & 2 closed | |
|
BIOS type select 27512 |
W3 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
W6 |
N/A |
|
Monitor type select color |
SW1/4 |
On | |
|
Monitor type select monochrome |
SW1/4 |
Off | |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
TAG 0 |
TAG 1 |
|
64KB |
(8) 16K x 4 |
(1) 16K x 1 |
(2) 16K x 4 |
|
256KB |
(8) 64K x 4 |
(1) 64K x 1 |
(2) 64K x 4 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
W1 |
W2 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
DRAM CONFIGURATION | |||||
|
Size |
Bank 0 |
Bank 1 |
Bank 0A |
Bank 1A |
Bank 2A |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB (A) |
(4) 1M x 9 |
NONE |
NONE |
NONE |
NONE |
|
4MB (B) |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
9MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
10MB (A) |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
10MB (B) |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
11MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
14MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
Note: Banks 0A, 1A, and 2A are located on the external memory card | |||||
|
DRAM JUMPER CONFIGURATION | |||||
|
Size |
W1 |
W2 |
W3 |
W4 |
W5 |
|
1MB |
N/A |
N/A |
N/A |
2 & 3 |
2 & 3 |
|
2MB |
N/A |
N/A |
N/A |
2 & 3 |
2 & 3 |
|
3MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB (A) |
N/A |
N/A |
N/A |
1 & 2 |
1 & 2 |
|
4MB (B) |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
5MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
6MB |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
8MB |
N/A |
N/A |
N/A |
1 & 2 |
1 & 2 |
|
9MB |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
10MB (A) |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
10MB (B) |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
11MB |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
12MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
14MB |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
16MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
Note: W4, W5 are located on the mainboard. | |||||
|
DRAM SWITCH CONFIGURATION (CON’T) | |||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
|
1MB |
On |
On |
On |
|
2MB |
On |
On |
On |
|
3MB |
On |
On |
On |
|
4MB (A) |
On |
On |
Off |
|
4MB (B) |
On |
On |
On |
|
5MB |
On |
Off |
On |
|
6MB |
On |
Off |
On |
|
8MB |
On |
Off |
Off |
|
9MB |
Off |
On |
Off |
|
10MB (A) |
Off |
On |
Off |
|
10MB (B) |
Off |
On |
On |
|
11MB |
Off |
On |
Off |
|
12MB |
Off |
On |
Off |
|
14MB |
Off |
Off |
On |
|
16MB |
Off |
Off |
Off |
|
Note: SW1 is located on the mainboard. | |||
|
DRAM SWITCH CONFIGURATION (CON’T) | |||||
|
Size |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
|
1MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
2MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
3MB |
On |
On |
Off |
Off |
On |
|
4MB (A) |
N/A |
N/A |
N/A |
N/A |
N/A |
|
4MB (B) |
On |
On |
Off |
Off |
On |
|
5MB |
On |
On |
Off |
Off |
On |
|
6MB |
On |
Off |
Off |
Off |
On |
|
8MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
9MB |
On |
On |
On |
Off |
Off |
|
10MB (A) |
On |
On |
On |
Off |
Off |
|
10MB (B) |
On |
Off |
Off |
Off |
On |
|
11MB |
On |
On |
On |
Off |
Off |
|
12MB |
On |
Off |
On |
Off |
Off |
|
14MB |
On |
Off |
Off |
Off |
On |
|
16MB |
On |
Off |
On |
Off |
Off |
|
Note: SW2 is located on the memory card | |||||
|
DRAM SWITCH CONFIGURATION (CON’T) | |||||
|
Size |
SW2/6 |
SW2/7 |
SW2/8 |
SW2/9 |
SW2/10 |
|
1MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
2MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
3MB |
Off |
Off |
On |
On |
N/A |
|
4MB (A) |
N/A |
N/A |
N/A |
N/A |
N/A |
|
4MB (B) |
Off |
Off |
On |
On |
N/A |
|
5MB |
Off |
Off |
On |
On |
N/A |
|
6MB |
Off |
Off |
On |
On |
N/A |
|
8MB |
N/A |
N/A |
N/A |
N/A |
N/A |
|
9MB |
Off |
Off |
On |
On |
N/A |
|
10MB (A) |
Off |
Off |
On |
On |
N/A |
|
10MB (B) |
Off |
Off |
On |
On |
N/A |
|
11MB |
Off |
Off |
On |
On |
N/A |
|
12MB |
Off |
Off |
On |
On |
N/A |
|
14MB |
Off |
Off |
On |
On |
N/A |
|
16MB |
Off |
Off |
On |
On |
N/A |
|
Note: SW2 is located on the memory card. | |||||