ASUS COMPUTER INTERNATIONAL
ISA-486SIQ
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
SRAM Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
220mm x 240mm |
|
I/O Options |
None |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset |
CON1 |
Turbo LED |
CON4 |
|
Speaker |
CON2 |
Turbo switch |
CON5 |
|
Power LED & keylock |
CON3 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CPU speed select 25/33/50MHz |
JP1 |
pins 2 & 3 closed | |
|
CPU speed select 20MHz |
JP1 |
pins 1 & 2 closed | |
|
Monitor type select monochrome |
JP2 |
pins 1 & 2 closed | |
|
Monitor type select color |
JP2 |
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 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SRAM CONFIGURATION | |||
|
Size |
Cache |
Location |
TAG |
|
64KB |
(8) 8K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
Bank 0 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
Banks 0 & 1 |
(1) 32K x 8 |
|
SRAM JUMPER CONFIGURATION | |||
|
Size |
Jumper CJ1 |
Jumper CJ2 |
Jumper CJ3 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
open |
|
128KB |
pins 2 & 3 closed |
open |
closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
open |
|
CPU JUMPER CONFIGURATION | |||
|
CPU |
Jumper CPJ1 |
Jumper CPJ2 |
Jumper CPJ3 |
|
80486DX |
pins 2 & 3 closed |
pins 1 & 2 and 3 & 4 closed |
pins 2 & 3 closed |
|
80487SX |
pins 1 & 2 closed |
pins 1 & 2 and 3 & 4 closed |
pins 1 & 2 closed |
|
80486SX |
open |
pins 2 & 3 closed |
pins 2 & 3 closed |