FIRST INTERNATIONAL COMPUTER, INC.
80386SX-20/25 SC/SI
|
Processor |
80386SX |
|
Processor Speed |
20/25MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
32MB |
|
Cache |
16/32/64/128KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo switch |
JP30 |
Speaker |
JP33 |
|
Turbo LED |
JP31 |
Power LED & keylock |
JP34 |
|
Reset switch |
JP32 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select monochrome/EGA |
JP2 |
Open | |
|
Monitor type select color |
JP2 |
Closed | |
|
Note:JP21 is also used to set cache size, therefore its setting will vary when cache is enabled. | |||
|
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 |
|
2.5MB |
(2) 256K x 9 |
(2) 1M x 9 |
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 |
|
8MB |
(2) 4M x 9 |
NONE |
NONE |
NONE |
|
9MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 4M x 9 |
NONE |
|
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
12MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
|
18MB |
(2) 1M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
|
20MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
|
24MB |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
|
26MB |
(2) 1M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
|
32MB |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
(2) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
16KB |
(2) 8K x 8 |
NONE |
(1) 8K x 8 |
|
32KB |
(2) 8K x 8 |
(2) 8K x 8 |
(1) 8K x 8 |
|
64KB |
(2) 32K x 8 |
NONE |
(1) 32K x 8 |
|
128KB |
(2) 32K x 8 |
(2) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||||||||
|
Size |
JP3 |
JP10 |
JP16 |
JP17 |
JP18 |
JP19 |
JP20 |
JP21 |
JP27 |
JP29 |
|
16KB |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Closed |
|
32KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
Closed |
Open |
|
64KB |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Closed |
|
128KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
Closed |
Open |
|
Note:Pins designated should be in the closed position. | ||||||||||
|
CACHE JUMPER CONFIGURATION | |||||
|
Setting |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
|
Enabled |
1 & 2 |
1 & 2 |
Open |
Open |
Open |
|
Disabled |
2 & 3 |
2 & 3 |
Closed |
Closed |
Closed |
|
Note:Pins designated should be in the closed position. | |||||
|
CACHE JUMPER CONFIGURATION (CONT) | ||||||
|
Setting |
JP9 |
JP11 |
JP12 |
JP13 |
JP14 |
JP15 |
|
Enabled |
Open |
Open |
Open |
1 & 2 |
Open |
Open |
|
Disabled |
Closed |
Closed |
Closed |
Open |
Closed |
Closed |
|
Note:Pins designated should be in the closed position. | ||||||
|
CACHE JUMPER CONFIGURATION (CONT) | ||||||
|
Setting |
JP22 |
JP23 |
JP24 |
JP25 |
JP26 |
JP28 |
|
Enabled |
Open |
Open |
Closed |
Open |
Open |
Open |
|
Disabled |
Closed |
Open |
Open |
Closed |
Closed |
Closed |