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# 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
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+-----------+-------------------+----------|
| Front panel | JP39 | IDE interface | PJ1 |
| switches & LEDs | | | |
|-----------------+-----------+-------------------+----------|
| External hard | JP40 | Parallel port | PJ2 |
| drive access | | | |
| LED | | | |
|-----------------+-----------+-------------------+----------|
| Auxiliary | JP8A | Serial port 1 | PJ3 |
| keyboard | | | |
|-----------------+-----------+-------------------+----------|
| Reset switch | JP32 pins | Serial port 2 | PJ4 |
| | 1 & 2 | | |
|-----------------+-----------+-------------------+----------|
| Turbo LED | JP32 pins | Floppy drive | PJ5 |
| | 3 & 4 | interface | |
|-----------------+-----------+-------------------+----------|
| Speaker | JP33 | 32-bit external | SL1 |
| | | memory card | |
|-----------------+-----------+-------------------+----------|
| Power LED & | JP34 | 32-bit external | SL2 |
| keylock | | cache card | |
|-----------------+-----------+-------------------+----------|
| External | JP36 | 32-bit | SL3 |
| battery | | MaxGraphics video | |
| | | card | |
|-----------------+-----------+-------------------+----------|
| IDE interface | LED | | |
| LED | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Floppy drive interface | FDDEN | pins 2 & 3 |
| | enabled | | closed |
|---+---------------------------+---------------+------------|
| | Floppy drive interface | FDDEN | pins 1 & 2 |
| | disabled | | closed |
|---+---------------------------+---------------+------------|
| » | IDE interface enabled | IDEEN | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | IDE interface disabled | IDEEN | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP3S | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP3T | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP3U | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP4S | pins 1 & 2 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select Award | JP6 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select Phoenix | JP6 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP41 | unknown |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP42 | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | JP43 | unknown |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | External cache disabled | JP45 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | External cache enabled | JP45 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Cacheable address from | SW1/Switch 1 | open |
| | 768 to 895KB disabled | | |
|---+---------------------------+---------------+------------|
| | Cacheable address from | SW1/Switch 1 | closed |
| | 768 to 895KB enabled | | |
|---+---------------------------+---------------+------------|
| » | Cacheable address from | SW1/Switch 2 | open |
| | 896 to 1024KB disabled | | |
|---+---------------------------+---------------+------------|
| | Cacheable address from | SW1/Switch 2 | closed |
| | 896 to 1024KB enabled | | |
|---+---------------------------+---------------+------------|
| » | Cacheable address from 0 | SW1/Switch 3 | closed |
| | to 640KB & 1 to 64MB | | |
| | enabled | | |
|---+---------------------------+---------------+------------|
| | Cacheable address from 0 | SW1/Switch 3 | open |
| | to 640KB & 1 to 64MB | | |
| | disabled | | |
|---+---------------------------+---------------+------------|
| | NPU error override | SW1/Switch 4 | closed |
| | enabled | | |
|---+---------------------------+---------------+------------|
| | NPU error override | SW1/Switch 4 | open |
| | disabled | | |
|---+---------------------------+---------------+------------|
| | Monitor type select color | SW1/Switch 5 | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/Switch 5 | open |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/Switch 6 | unknown |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/Switch 7 | unknown |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/Switch 8 | unknown |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW2 | pins 3 & 4 |
| | not alter | | closed |
+------------------------------------------------------------+
(IMG) IMG 2
+------------------------------------------------------------+
| DRAM SWITCH (SW1) CONFIGURATION |
|------------------------------------------------------------|
|Size|Switch|Switch|Switch|Switch|Switch|Switch|Switch|Switch|
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 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|Switch|Switch|Switch|Switch|Switch|Switch|Switch|
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 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 | Jumper | S0 | S1 |
| | | Address | PJ6 | | |
|----------+-----------+----------+----------+-------+-------|
| COM 2 | IRQ3 | 2F8h | pins 1 & | pins | pins |
| | | | 3 | 1 & 2 | 2 & 3 |
|----------+-----------+----------+----------+-------+-------|
| COM 1 | IRQ4 | 3F8h | pins 1 & | pins | pins |
| | | | 2 | 2 & 3 | 2 & 3 |
|----------+-----------+----------+----------+-------+-------|
| Disabled | N/A | N/A | N/A | pins | pins |
| | | | | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 (PJ4) CONFIGURATION |
|------------------------------------------------------------|
| COM | Interrupt | I/O | Jumper | S2 | S3 |
| | | Address | PJ6 | | |
|----------+-----------+----------+----------+-------+-------|
| COM 1 | IRQ4 | 3F8h | pins 2 & | pins | pins |
| | | | 4 | 1 & 2 | 2 & 3 |
|----------+-----------+----------+----------+-------+-------|
| COM 2 | IRQ3 | 2F8h | pins 3 & | pins | pins |
| | | | 4 | 2 & 3 | 2 & 3 |
|----------+-----------+----------+----------+-------+-------|
| Disabled | N/A | N/A | N/A | pins | pins |
| | | | | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT 1 (PJ2) CONFIGURATION |
|------------------------------------------------------------|
| LPT | Interrupt | I/O | Jumper | Jumper | Jumper |
| | | Address | P0 | P1 | PRT |
|----------+-----------+----------+--------+--------+--------|
| LPT 1 | IRQ7 | 3F8h | pins 1 | pins 2 | pins 2 |
| | | | & 2 | & 3 | & 3 |
|----------+-----------+----------+--------+--------+--------|
| LPT 2 | IRQ5 | 2F8h | pins 2 | pins 2 | pins 1 |
| | | | & 3 | & 3 | & 2 |
|----------+-----------+----------+--------+--------+--------|
| LPT 3 | IRQ7 | 3BCh | pins 2 | pins 1 | pins 2 |
| | | | & 3 | & 2 | & 3 |
|----------+-----------+----------+--------+--------+--------|
| Disabled | N/A | N/A | pins 1 | pins 1 | N/A |
| | | | & 2 | & 2 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+