KT TECHNOLOGY PTE LTD.
386SX NON-CACHE MAINBOARD
Processor |
80386SX |
Processor Speed |
16/20/25/33MHz |
Chip Set |
Acer |
Max. Onboard DRAM |
16MB |
Cache |
None |
BIOS |
AMI |
Dimensions |
220mm x 170mm |
I/O Options |
None |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J4 |
Turbo LED & switch |
J8 |
Reset switch |
J6 |
Power LED & keylock |
J9 |
Speaker |
J7 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
ADS delay select enabled |
J5 |
pins 1 & 2 closed |
ADS delay select disabled |
J5 |
pins 2 & 3 closed | |
» |
NPU synchronous with CPU |
JP2 |
pins 1 & 2 closed |
NPU asynchronous with CPU |
JP2 |
pins 2 & 3 closed | |
» |
CMOS type select 1287 |
JP3 |
Closed |
CMOS type select 146818 |
JP3 |
Open | |
» |
Monitor type select color |
JP4 |
pins 2 & 3 closed |
Monitor type select monochrome |
JP4 |
pins 1 & 2 closed | |
» |
Parity check enabled |
JP6 |
Closed |
Parity check disabled |
JP6 |
Open |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
512KB |
(1) 256K x 9 |
(1) 256K x 9 |
NONE |
NONE |
1MB |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
2MB |
(1) 1M x 9 |
(1) 1M x 9 |
NONE |
NONE |
4MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
8MB |
(1) 4M x 9 |
(1) 4M x 9 |
NONE |
NONE |
16MB |
(1) 4M x 9 |
(1) 4M x 9 |
(1) 4M x 9 |
(1) 4M x 9 |
CPU SPEED CONFIGURATION | ||
Speed |
JP1 |
JP5 |
16Mhz |
pins 1 & 2 closed |
pins 1 & 2 closed |
20Mhz |
pins 2 & 3 closed |
pins 1 & 2 closed |
25MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
33MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |