CACHE COMPUTERS, INC.
CACHE 486-25/33 EISA (Model 321)
|
Processor |
80486DX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128/256KB |
|
BIOS |
Phoenix |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP4 |
Reset |
JP18 |
|
Auxiliary keyboard |
JP5 |
Power LED & keylock |
JP19 |
|
Speaker |
JP17 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
JP11 |
N/A | |
|
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 |
|
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
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 |
|
DRAM JUMPER CONFIGURATION | ||||
|
SIMM Size |
JP9 |
JP10 |
JP13 |
JP14 |
|
256KB |
pins 1&2 closed |
pins 2&3 closed |
pins 2&3 closed |
pins 2&3 closed |
|
1MB |
pins 1&2 closed |
pins 1&2 closed |
pins 2&3 closed |
pins 2&3 closed |
|
4MB |
pins 2&3 closed |
pins 1&2 closed |
pins 1&2 closed |
pins 1&2 closed |
|
DRAM SWITCH CONFIGURATION | ||||
|
SIMM Size |
SW3/1 |
SW3/2 |
SW3/3 |
SW3/4 |
|
256KB |
On |
Off |
Off |
Off |
|
1MB |
Off |
Off |
On |
Off |
|
4MB |
Off |
On |
On |
Off |
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
128KB |
(4) 32K x 8 |
|
256KB |
(8) 32K x 8 |
|
Note:Locations and sizes of cache and tag are unknown. | |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP15 |
JP16 |
JP20 |
JP21 |
|
128KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
256KB |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION | |||||
|
CPU speed |
Bus speed |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
25MHz |
8.33MHz |
On |
On |
Off |
Off |
|
33MHz |
8.25MHz |
Off |
On |
Off |
Off |