DTK COMPUTER, INC.
PKM-5031Y
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
16/20/25/33/50(internal)/50/66(internal)MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
AMI/DTK |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J1 |
Turbo LED |
J4 |
|
Turbo switch |
J2 |
Power LED & keylock |
J5 |
|
Speaker |
J3 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CPU speed select forced high |
J2 |
Open | |
|
CPU speed select switchable at keyboard |
J2 |
pins 2 & 3 closed | |
|
Cache write select 0 wait states |
J9 |
Closed | |
|
Cache write select 1 wait state |
J9 |
Open | |
|
Monitor type select monochrome |
J13 |
pins 1 & 2 closed | |
|
Monitor type select color |
J13 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
64KB |
(8) 8K x 8 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
J6 |
J7 |
J8 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||
|
Type |
J10 |
J11 |
J12 |
|
80486SX |
Open |
pins 2 & 3 closed |
Open |
|
80486DX |
Closed |
pins 1 & 2 closed |
Closed |
|
80486DX2 |
Closed |
Closed | |
|
CPU SPEED CONFIGURATION | |||||
|
Speed |
J14 |
J15 |
J16 |
J17 |
J18 |
|
16MHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
20MHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
25MHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
33MHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
50iMHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
50Mhz (15ns cache) |
Open |
Closed |
Open |
2 & 3 |
Closed |
|
50Mhz (20ns cache) |
Closed |
Closed |
Closed |
2 & 3 |
Closed |
|
66iMHz |
Closed |
Open |
Open |
1 & 2 |
Open |
|
Note: Pins designated should be in the closed position. | |||||