YOUTH KEEP ENTERPRISES, LTD.
502 386DX
|
Processor |
80386DX |
|
Processor Speed |
33MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
8MB |
|
Cache |
64/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
80387/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Turbo LED |
J5 |
|
Speaker |
J2 |
External battery |
J6 |
|
Turbo switch |
J3 |
32-bit external memory card |
S1 |
|
Reset switch |
J4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP10 |
pins 1 & 2 closed | |
|
Monitor type select monochrome |
JP10 |
pins 2 & 3 closed | |
|
NPU disabled |
JP13 |
pins 2 & 3 closed | |
|
NPU enabled |
JP13 |
pins 1 & 2 closed | |
|
NPU mode select asynchronous with CPU |
JP14 |
pins 1 & 2 closed | |
|
NPU mode select synchronous with CPU |
JP14 |
pins 2 & 3 closed | |
|
CPU speed select fast |
JP15 |
pins 1 & 2 closed | |
|
CPU speed select slow |
JP15 |
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 |
|
DRAM JUMPER CONFIGURATION | ||||||||
|
Size |
JP1 |
JP2 |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
|
1MB |
Closed |
Closed |
Closed |
Closed |
2 & 3 |
Open |
Open |
Open |
|
2MB |
Closed |
Closed |
Closed |
Closed |
2 & 3 |
2 & 3 |
Open |
Open |
|
4MB |
Closed |
Closed |
Open |
Open |
1 & 2 |
Open |
Open |
Open |
|
5MB |
Closed |
Open |
Closed |
Closed |
2 & 3 |
1 & 2 |
Open |
Open |
|
8MB |
Closed |
Open |
Open |
Closed |
1 & 2 |
1 & 2 |
Open |
Open |
|
Note:Pins designated should be in the closed position. | ||||||||
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
64KB |
(8) 64K x 1 |
(2) 64K x 1 |
|
256KB |
(8) 256K x 1 |
(2) 256K x 1 |