UNIDENTIFIED
SCAMP 386SX
|
Processor |
80386SX/CX486SLC (exact location unidentified) |
|
Processor Speed |
16/20/25/33MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
16MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
218mm x 168mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
CN1 |
Turbo switch |
JP6 |
|
External battery |
CN2 |
Turbo LED |
JP8 |
|
Power LED & keylock |
CN3 |
Reset switch |
JP14 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
CMOS memory normal operation |
HDR1 |
pins 1 & 2 closed |
|
CMOS memory clear |
HDR1 |
pins 3 & 4 closed | |
|
Pipeline mode disabled |
JP1 |
Open | |
|
Pipeline mode enabled |
JP1 |
Closed | |
|
Monitor type select monochrome |
JP4 |
Open | |
|
Monitor type select color |
JP4 |
Closed | |
|
|
Keyboard matching select normal operation |
JP5 |
Open |
|
Keyboard matching select keyboard error during boot-up |
JP5 |
Closed | |
|
CPU clock speed select software turbo |
JP7 |
pins 1 & 2 closed | |
|
CPU clock speed select hardware turbo |
JP7 |
pins 2 & 3 closed | |
|
NPU clock select CPU clock speed |
JP11 |
Open | |
|
NPU clock select NPU clock speed |
JP11 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
2.5MB |
(2) 1M x 9 |
(2) 256K x 9 |
|
2.5MB |
(2) 256K x 9 |
(2) 1M x 9 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
CPU SPEED CONFIGURATION | |
|
Speed |
JP2 |
|
16MHz |
Open |
|
20MHz |
Open |
|
25MHz |
Open |
|
33MHz |
Closed |
|
Note: If CPU speed is 16MHz or 20MHz, set Fast Clock Divider in Advanced CMOS Setup to 4. | |