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# QDI COMPUTER, INC.
P5I430VX-250DM EXPLORER II
Processor CX M1/AM K5/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 250mm x 220mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), cache slot, IR connector, USB
connectors (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN1 | IDE interface | J5 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | Turbo LED | J6 |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | IR connector | J7 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | USB connector 1 | J8 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN5 | USB connector 2 | J9 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN6 | Chassis fan | J10 |
| | | power | |
|-------------------+----------+------------------+----------|
| Green PC | J1 | PS/2 mouse | J13 |
| connector | | interface | |
|-------------------+----------+------------------+----------|
| Reset switch | J2 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Speaker | J3 | Cache slot | SL1 |
|-------------------+----------+------------------+----------|
| Power LED & | J4 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP1 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP1 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 8MB | None | None | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | None | (2) 1M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 1M x 36 | (2) 2M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | None | (2) 2M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | None | None | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 1M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 1M x 36 | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | None | (2) 4M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 56MB | (2) 4M x 36 | (2) 2M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 56MB | (2) 1M x 36 | (2) 2M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | None | None | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 4M x 36 | (2) 4M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 4M x 36 | (2) 1M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | None | (2) 1M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 1M x 36 | (2) 8M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 4M x 36 | (2) 2M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | None | (2) 8M x 36 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | None | (2) 2M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | None | (2) 4M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 104MB | (2) 4M x 36 | (2) 8M x 36 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 104MB | (2) 1M x 36 | (2) 8M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 4M x 36 | (2) 8M x 36 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | None | (2) 8M x 36 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 | TAG |
|-------+--------------+----------------------+--------------|
| 256KB | (2) 32K x 32 | Not installed | Unidentified |
|-------+--------------+----------------------+--------------|
| 256KB | None | 256KB module | Unidentified |
| | | installed | |
|-------+--------------+----------------------+--------------|
| 512KB | (2) 32K x 32 | 256KB module | Unidentified |
| | | installed | |
|-------+--------------+----------------------+--------------|
| 512KB | None | 512KB module | Unidentified |
| | | installed | |
|-------+--------------+----------------------+--------------|
| 512KB | (2) 64K x 32 | Not installed | Unidentified |
|------------------------------------------------------------|
| Note: The location of bank 0 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JC1 | JC2 | JC3 | JS1 | JS2 |
| speed | speed | | | | | | |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 120MHz | 50MHz | 2x | 1 & | 1 & | 2 & | 2 & | 1 & |
| | | | 2 | 2 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 133MHz | 55MHz | 2x | 2 & | 1 & | 2 & | 2 & | 1 & |
| | | | 3 | 2 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2x | 1 & | 2 & | 2 & | 2 & | 1 & |
| | | | 2 | 3 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2x | 2 & | 2 & | 2 & | 2 & | 1 & |
| | | | 3 | 3 | 3 | 3 | 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AMD) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JC1 | JC2 | JC3 | JS1 | JS2 |
| speed | speed | | | | | | |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | 1 & | 1 & | 2 & | 2 & | 2 & |
| | | | 2 | 2 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x | 1 & | 2 & | 2 & | 2 & | 2 & |
| | | | 2 | 3 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 100MHz | 66MHz | 1.5x | 2 & | 2 & | 2 & | 2 & | 2 & |
| | | | 3 | 3 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2x | 1 & | 2 & | 2 & | 2 & | 1 & |
| | | | 2 | 3 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2x | 2 & | 2 & | 2 & | 2 & | 1 & |
| | | | 3 | 3 | 3 | 3 | 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JC1 | JC2 | JC3 | JS1 | JS2 |
| speed | speed | | | | | | |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 75MHz | 50MHz | 1.5x | 1 & | 1 & | 2 & | 2 & | 2 & |
| | | | 2 | 2 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x | 1 & | 2 & | 2 & | 2 & | 2 & |
| | | | 2 | 3 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 100MHz | 66MHz | 1.5x | 2 & | 2 & | 2 & | 2 & | 2 & |
| | | | 3 | 3 | 3 | 3 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 120MHz | 60MHz | 2x | 1 & | 2 & | 2 & | 2 & | 1 & |
| | | | 2 | 3 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 133MHz | 66MHz | 2x | 2 & | 2 & | 2 & | 2 & | 1 & |
| | | | 3 | 3 | 3 | 3 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 150MHz | 60MHz | 2.5x | 1 & | 2 & | 2 & | 1 & | 1 & |
| | | | 2 | 3 | 3 | 2 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 166MHz | 66MHz | 2.5x | 2 & | 2 & | 2 & | 1 & | 1 & |
| | | | 3 | 3 | 3 | 2 | 2 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 180MHz | 60MHz | 3x | 1 & | 2 & | 2 & | 1 & | 2 & |
| | | | 2 | 3 | 3 | 2 | 3 |
|---------+-------+------------+-----+-----+-----+-----+-----|
| 200MHz | 66MHz | 3x | 2 & | 2 & | 2 & | 1 & | 2 & |
| | | | 3 | 3 | 3 | 2 | 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JV1 | JV2 | JV3 | JV4 | JV5 |
|-----------+----------+----------+----------+--------+------|
| 3.3v | Closed | Closed | Open | 1 & 2 | N/A |
|-----------+----------+----------+----------+--------+------|
| 3.5v | Closed | Closed | Closed | 1 & 2 | N/A |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| I/O | V core | JV1 | JV2 | JV3 | JV4 | JV5 |
| voltage | | | | | | |
|------------+--------+------+------+--------+-------+-------|
| 3.3v | 2.5 | Open | Open | Open | 2 & 3 | Open |
|------------+--------+------+------+--------+-------+-------|
| 3.3v | 2.7 | Open | Open | Open | 2 & 3 | 1 & 2 |
|------------+--------+------+------+--------+-------+-------|
| 3.3v | 2.9 | Open | Open | Open | 2 & 3 | 2 & 3 |
|------------+--------+------+------+--------+-------+-------|
| 3.5v | 2.5 | Open | Open | Closed | 2 & 3 | Open |
|------------+--------+------+------+--------+-------+-------|
| 3.5v | 2.7 | Open | Open | Closed | 2 & 3 | 1 & 2 |
|------------+--------+------+------+--------+-------+-------|
| 3.5v | 2.9 | Open | Open | Closed | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+