DTK COMPUTER, INC.
PEM-2500
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
16MB (8MB on external memory card) |
|
Cache |
64/256KB |
|
BIOS |
AMI/Award/DTK/Phoenix |
|
Dimensions |
351mm x 306mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
80387/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Turbo LED |
J4 |
|
Reset switch |
J2 |
Turbo switch |
J5 |
|
Speaker |
J3 |
32-bit external memory card |
S15 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Expansion bus (8-bit) speed select 7 wait states |
W11 |
pins 1 & 2 closed | |
|
Expansion bus (8-bit) speed select 5 wait states |
W11 |
pins 2 & 3 closed | |
|
Expansion bus (16-bit) speed select 3 wait states |
W12 |
pins 1 & 2 closed | |
|
Expansion bus (16-bit) speed select 1 wait states |
W12 |
pins 2 & 3 closed | |
|
DMA & I/O speed select 6/12MHz respectively |
W13 |
pins 1 & 2 closed | |
|
DMA & I/O speed select 3/6MHz respectively |
W13 |
pins 2 & 3 closed | |
|
NPU disabled |
W14 |
Closed | |
|
NPU enabled |
W14 |
Open | |
|
Monitor type select monochrome |
SW1/6 |
Off | |
|
Monitor type select color |
SW1/6 |
On | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
1MB |
(8) 44256 |
(4) 41256 |
NONE |
NONE |
NONE |
NONE |
|
1MB |
NONE |
NONE |
NONE |
NONE |
NONE |
(4) 256K x 9 |
|
2MB |
(8) 44256 |
(4) 41256 |
(8) 44256 |
(4) 41256 |
NONE |
NONE |
|
2MB |
(8) 44256 |
(4) 41256 |
NONE |
NONE |
NONE |
(4) 256K x 9 |
|
2MB |
NONE |
NONE |
(8) 44256 |
(4) 41256 |
NONE |
(4) 256K x 9 |
|
4MB |
(8) 411000 |
(4) 411000 |
(8) 411000 |
(4) 411000 |
(12) 411000 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
NONE |
(4) 1M x 9 |
|
5MB |
(8) 44256 |
(4) 41256 |
NONE |
NONE |
NONE |
(4) 1M x 9 |
|
8MB |
(8) 411000 |
(4) 411000 |
(8) 411000 |
(4) 411000 |
(12) 411000 |
(4) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||||||||
|
Size |
W1 |
W2 |
W3 |
W4 |
W5 |
W6 |
W7 |
W8 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
1MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
4MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
5MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
8MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
|
Note:Pins designated should be in the closed position. | ||||||||
|
DRAM SWITCH CONFIGURATION | |||||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
|
1MB |
On |
On |
On |
On |
On |
|
1MB |
On |
On |
On |
On |
On |
|
2MB |
On |
On |
On |
On |
On |
|
4MB |
On |
On |
Off |
On |
Off |
|
4MB |
On |
On |
Off |
On |
Off |
|
5MB |
Off |
On |
On |
Off |
On |
|
8MB |
Off |
On |
Off |
Off |
Off |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
64KB |
(8) 16K x 4 |
(2) 16K x 4 |
|
256KB |
(8) 64K x 4 |
(2) 64K x 4 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
W9 |
W10 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |