CSS LABORATORIES, INC.
PREFERRED 433GE (Rev. B)
Processor | 80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | C & T |
Max. Onboard DRAM | 24MB |
SRAM Cache | 32/256KB |
BIOS | Award/Phoenix |
Dimensions | 355mm x 304mm |
I/O Options | 32-bit external memory card slot, 32-bit external cache card slot 32-bit local video card slot, auxiliary keyboard, IDE interface floppy drive interface, parallel port, serial port (2) |
NPU Options | 4167 |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Front panel switches & LEDs | JP39 | IDE interface | PJ1 |
External hard drive access LED | JP40 | Parallel port | PJ2 |
Auxiliary keyboard | JP8A | Serial port 1 | PJ3 |
Reset switch | JP32 pins 1 & 2 | Serial port 2 | PJ4 |
Turbo LED | JP32 pins 3 & 4 | Floppy drive interface | PJ5 |
Speaker | JP33 | 32-bit external memory card | SL1 |
Power LED & keylock | JP34 | 32-bit external cache card | SL2 |
External battery | JP36 | 32-bit MaxGraphics video card | SL3 |
IDE interface LED | LED |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Floppy drive interface enabled | FDDEN | pins 2 & 3 closed |
| Floppy drive interface disabled | FDDEN | pins 1 & 2 closed |
» | IDE interface enabled | IDEEN | pins 2 & 3 closed |
| IDE interface disabled | IDEEN | pins 1 & 2 closed |
» | Factory configured - do not alter | JP3S | pins 2 & 3 closed |
» | Factory configured - do not alter | JP3T | pins 2 & 3 closed |
» | Factory configured - do not alter | JP3U | pins 2 & 3 closed |
» | Factory configured - do not alter | JP4S | pins 1 & 2 closed |
| BIOS type select Award | JP6 | pins 1 & 2 closed |
| BIOS type select Phoenix | JP6 | pins 2 & 3 closed |
» | Factory configured - do not alter | JP41 | unknown |
» | Factory configured - do not alter | JP42 | pins 2 & 3 closed |
» | Factory configured - do not alter | JP43 | unknown |
» | External cache disabled | JP45 | pins 2 & 3 closed |
| External cache enabled | JP45 | pins 1 & 2 closed |
» | Cacheable address from 768 to 895KB disabled | SW1/Switch 1 | open |
| Cacheable address from 768 to 895KB enabled | SW1/Switch 1 | closed |
» | Cacheable address from 896 to 1024KB disabled | SW1/Switch 2 | open |
| Cacheable address from 896 to 1024KB enabled | SW1/Switch 2 | closed |
» | Cacheable address from 0 to 640KB & 1 to 64MB enabled | SW1/Switch 3 | closed |
| Cacheable address from 0 to 640KB & 1 to 64MB disabled | SW1/Switch 3 | open |
| NPU error override enabled | SW1/Switch 4 | closed |
| NPU error override disabled | SW1/Switch 4 | open |
| Monitor type select color | SW1/Switch 5 | closed |
| Monitor type select monochrome | SW1/Switch 5 | open |
» | Factory configured - do not alter | SW1/Switch 6 | unknown |
» | Factory configured - do not alter | SW1/Switch 7 | unknown |
» | Factory configured - do not alter | SW1/Switch 8 | unknown |
» | Factory configured - do not alter | SW2 | pins 3 & 4 closed |

DRAM SWITCH (SW1) CONFIGURATION | ||||||||
Size | Switch 1 | Switch 2 | Switch 3 | Switch 4 | Switch 5 | Switch 6 | Switch 7 | Switch 8 |
4MB | closed | open | closed | open | open | N/A | N/A | open |
8MB | closed | open | closed | open | open | N/A | N/A | open |
8MB | open | closed | closed | open | open | N/A | N/A | open |
12MB | closed | open | closed | open | open | N/A | N/A | open |
12MB | open | closed | closed | open | open | N/A | N/A | open |
16MB | open | closed | closed | open | open | N/A | N/A | open |
16MB | open | closed | open | closed | open | N/A | N/A | open |
16MB | closed | open | closed | open | open | N/A | N/A | closed |
20MB | closed | open | closed | open | open | N/A | N/A | open |
24MB | open | closed | open | closed | open | N/A | N/A | open |
DRAM SWITCH (JP8) CONFIGURATION | ||||||||
Size | Switch 1 | Switch 2 | Switch 3 | Switch 4 | Switch 5 | Switch 6 | Switch 7 | Switch 8 |
4MB | closed | open | open | open | open | open | open | open |
8MB | closed | open | open | open | closed | open | open | open |
8MB | closed | closed | open | open | open | open | open | open |
12MB | closed | open | closed | open | closed | open | closed | open |
12MB | closed | closed | closed | open | open | open | open | open |
16MB | closed | closed | closed | closed | open | open | open | open |
16MB | closed | closed | closed | closed | open | open | open | open |
16MB | closed | open | open | open | open | open | open | open |
20MB | closed | closed | closed | closed | closed | open | open | open |
24MB | closed | closed | closed | closed | closed | open | closed | open |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
4MB | (4) 256K x 36 | NONE | NONE |
8MB | (4) 256K x 36 | (4) 256K x 36 | NONE |
8MB | (4) 512K x 36 | NONE | NONE |
12MB | (4) 256K x 36 | (4) 256K x 36 | (4) 256K x 36 |
12MB | (4) 512K x 36 | (4) 256K x 36 | NONE |
16MB | (4) 512K x 36 | (4) 256K x 36 | (4) 256K x 36 |
16MB | (4) 512K x 36 | (4) 512K x 36 | NONE |
16MB | (4) 1M x 36 | NONE | NONE |
20MB | (4) 512K x 36 | (4) 512K x 36 | (4) 256K x 36 |
24MB | (4) 512K x 36 | (4) 512K x 36 | (4) 512K x 36 |
SERIAL PORT 1 (PJ3) CONFIGURATION | |||||
COM | Interrupt | I/O Address | Jumper PJ6 | S0 | S1 |
COM 2 | IRQ3 | 2F8h | pins 1 & 3 | pins 1 & 2 | pins 2 & 3 |
COM 1 | IRQ4 | 3F8h | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
Disabled | N/A | N/A | N/A | pins 1 & 2 | pins 1 & 2 |
Note: Pins designated should be in the closed position. | |||||
SERIAL PORT 2 (PJ4) CONFIGURATION | |||||
COM | Interrupt | I/O Address | Jumper PJ6 | S2 | S3 |
COM 1 | IRQ4 | 3F8h | pins 2 & 4 | pins 1 & 2 | pins 2 & 3 |
COM 2 | IRQ3 | 2F8h | pins 3 & 4 | pins 2 & 3 | pins 2 & 3 |
Disabled | N/A | N/A | N/A | pins 1 & 2 | pins 1 & 2 |
Note: Pins designated should be in the closed position. | |||||
PARALLEL PORT 1 (PJ2) CONFIGURATION | |||||
LPT | Interrupt | I/O Address | Jumper P0 | Jumper P1 | Jumper PRT |
LPT 1 | IRQ7 | 3F8h | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
LPT 2 | IRQ5 | 2F8h | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 |
LPT 3 | IRQ7 | 3BCh | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
Disabled | N/A | N/A | pins 1 & 2 | pins 1 & 2 | N/A |
Note: Pins designated should be in the closed position. | |||||