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 |