ADVANCED COMPUTER TECHNOLOGY, LTD.
ZX-25/HS, ZX-20/HS, ZX-16/HS
|
Processor |
80386SX |
|
Processor Speed |
16/20/25MHz |
|
Chip Set |
ACT |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
218mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
JP2 |
External battery |
JP11 |
|
Power LED & Keylock |
JP5 |
Speaker |
JP14 |
|
Reset switch |
JP10 |
Turbo switch |
JP17 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Factory configured - do not alter |
JP3 |
N/A |
| » |
Monitor type select color |
JP6 |
pins 2 & 3 closed |
|
Monitor type select monochrome |
JP6 |
pins 1 & 2 closed | |
| » |
Factory configured - do not alter |
JP7 |
N/A |
| » |
Factory configured - do not alter |
JP8 |
N/A |
| » |
Factory configured - do not alter |
JP9 |
N/A |
| » |
Battery select internal |
JP12 |
pins 2 & 3 closed |
|
Battery select external |
JP12 |
pins 1 & 2 closed | |
| » |
Power good signal detect from power supply |
JP13 |
pins 1 & 2 closed |
|
Power good signal detect from board |
JP13 |
pins 2 & 3 closed | |
| » |
CPU speed select 20MHz or 25MHz |
JP15 |
pins 1 & 2 closed |
|
CPU speed select 16MHz |
JP15 |
pins 2 & 3 closed | |
| » |
I/O bus speed select 8MHz |
JP16 |
pins 1 & 2 closed |
|
I/O bus speed select 6MHz |
JP16 |
pins 2 & 3 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 |
|
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 |