ASUS COMPUTER INTERNATIONAL
EISA-486A/EISA-486E
|
Processor |
80486SX/80487SX/80486DX |
|
Processor Speed |
20/25/33/50MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/128/256KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
CON2 |
Speaker |
CON5 |
|
Turbo switch |
CON3 |
Power LED & keylock |
CON6 |
|
Turbo LED |
CON4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select monochrome |
JP1 |
pins 1 & 2 closed | |
|
Monitor type select color |
JP1 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP2 |
N/A | |
|
Power good signal detect from power supply (EISA-486E) |
JP3 |
pins 2 & 3 closed | |
|
Power good signal detect from board (EISA-486E) |
JP3 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
JP5 |
N/A | |
|
Factory configured - do not alter |
JP5 |
N/A | |
|
CPU is asynchronous with oscillator installed at Y1 (EISA-486A) |
JP100 |
pins 2 & 3 closed | |
|
CPU is synchronous with oscillator installed at Y1 (EISA-486A) |
JP100 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
48MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
|
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 16K x 4 |
|
128KB |
(4) 32K x 8 |
NONE |
(2) 64K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 64K x 4 |
|
CACHE RESISTOR CONFIGURATION | |||
|
Size |
R1 |
R2 |
R3 |
|
64KB |
Installed |
Not installed |
Not installed |
|
128KB |
Not installed |
Installed |
Not installed |
|
256KB |
Not installed |
Not installed |
Installed |
|
CPU SPEED CONFIGURATION | |
|
Size |
JP4 |
|
20MHz |
Closed |
|
25MHz |
Closed |
|
33MHz |
Open |
|
50MHz |
Open |