FORCOM TECHNOLOGY CORPORATION
80486 DX/SX CACHE
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/50i/66iMHz |
|
Chip Set |
ALI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
128/256KB |
|
BIOS |
Award |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Speaker |
CN7 |
|
Serial port 2 |
CN2 |
Reset switch |
CN8 |
|
Parallel port |
CN3 |
Floppy drive interface |
CN9 |
|
VGA port |
CN4 |
IDE interface |
CN10 |
|
Power LED & keylock |
CN5 |
IDE interface LED |
JP8 |
|
Turbo switch & LED |
CN6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Monitor in interlace mode |
JP7 |
Closed |
|
Monitor in non-interlace mode |
JP7 |
Open | |
|
|
Monitor type select monochrome |
JP10 |
Closed |
|
Monitor type select color |
JP10 |
Open | |
|
|
CPU clock select 33MHz |
JP11 |
pins 2 & 3 closed |
|
CPU clock select 25MHz |
JP11 |
pins 1 & 2 closed | |
|
VGA display enabled |
JP12 |
pins 2 & 3 closed | |
|
VGA display disabled |
JP12 |
pins 1 & 2 closed | |
|
VESA monitor enabled |
JP14 |
pins 1 & 2 closed | |
|
VGA monitor enabled |
JP14 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
BUS CLOCK CONFIGURATION | ||
|
OSC Clock |
JP3 |
JP6 |
|
32MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
40MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
50MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
66MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||
|
CPU Type |
JP4 |
JP5 |
|
80486SX |
Open |
pins 1 & 2 closed |
|
80487SX |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
80486DX |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
80486DX2 |
pins 2 & 3 closed |
pins 2 & 3 closed |