ABC COMPUTER COMPANY, LTD.
A3889
Processor |
80386SX |
Processor Speed |
25MHz |
Chip Set |
Headland |
Max. Onboard DRAM |
8MB |
Cache |
None |
BIOS |
AMI |
Dimensions |
225mm x 220mm |
I/O Options |
Auxiliary keyboard connector |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
JP1 |
Turbo switch |
JP10 |
Auxiliary keyboard connector |
JP2 |
Speaker |
JP11 |
Turbo LED |
JP8 |
Power LED & keylock |
JP12 |
Reset switch |
JP9 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
BIOS type select 27256 |
JP3 |
pins 1 & 2 closed | |
BIOS type select 27128 |
JP3 |
pins 2 & 3 closed | |
Pipeline mode enabled |
JP4 |
pins 1 & 2 closed | |
Pipeline mode disabled |
JP4 |
pins 2 & 3 closed | |
Monitor type select monochrome |
JP5 |
Open | |
Monitor type select color |
JP5 |
Closed | |
CMOS memory normal operation |
JP6 |
Open | |
CMOS memory clear |
JP6 |
Closed |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
512KB |
(2) 256K x 9 |
NONE |
NONE |
NONE |
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
1.5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
2MB |
(2) 1M x 9 |
NONE |
NONE |
NONE |
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
NONE |
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
4.5MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 256K x 9 |
NONE |
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |