CACHE COMPUTERS, INC.
SX 386-20 (Model 308)
|
Processor |
80386SX |
|
Processor Speed |
16/20MHz |
|
Chip Set |
VIA |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI/Award/Phoenix/Quadtel |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo switch |
J3 |
External battery |
J8 |
|
Turbo LED |
J6 |
Speaker |
J11 |
|
Power LED & keylock |
J7 |
Reset switch |
SW3 |
|
Note:The location of the expansion slots is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
CPU speed select 20MHz |
J1 |
Open | |
|
CPU speed select 16MHz |
J1 |
Closed | |
|
NPU disabled |
J2 |
Closed | |
|
NPU enabled |
J2 |
Open | |
|
Monitor type select monochrome |
J4 |
Open | |
|
Monitor type select color |
J4 |
Closed | |
|
DMA speed select 8/10MHz |
J99 |
pins 2 & 3 closed | |
|
DMA speed select 4MHz |
J99 |
Closed | |
|
DMA speed select synchronous with CPU |
J99 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
SW2/5 |
Off | |
|
Factory configured - do not alter |
SW2/6 |
Off | |
|
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 |
|
DRAM JUMPER/SWITCH CONFIGURATION | ||||||
|
Size |
J10 |
J13 |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
512KB |
2 & 3 |
2 & 3 |
Off |
Off |
Off |
Off |
|
1MB |
2 & 3 |
2 & 3 |
On |
Off |
Off |
Off |
|
1.5MB |
2 & 3 |
2 & 3 |
Off |
On |
Off |
Off |
|
2MB |
2 & 3 |
2 & 3 |
On |
On |
Off |
Off |
|
2MB |
1 & 2 |
1 & 2 |
Off |
Off |
On |
On |
|
3MB |
2 & 3 |
1 & 2 |
Off |
On |
On |
Off |
|
4MB |
1 & 2 |
1 & 2 |
On |
Off |
On |
On |
|
5MB |
2 & 3 |
1 & 2 |
On |
On |
On |
Off |
|
6MB |
1 & 2 |
1 & 2 |
Off |
On |
On |
On |
|
8MB |
1 & 2 |
1 & 2 |
On |
On |
On |
On |
|
Note:Pins designated should be in the closed position. | ||||||
|
DRAM WAIT STATE CONFIGURATION | |||
|
Read States |
Write States |
SW2/7 |
SW2/8 |
|
NONE |
NONE |
Off |
On |
|
1 |
1 |
Off |
Off |
|
1 |
2 |
On |
Off |
|
2 |
2 |
On |
On |