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# ELITEGROUP COMPUTER SYSTEMS, INC.
P5TX-LA
Processor CX 6X86/CX 6X86L/CX 686MX/IBM 6X86/ IBM
6X86L/IBM 686MX/ AM K5/AM K6/Pentium
Processor Speed 75/90/100/120/133/150/166/200/233/266MHz
Chip Set Intel
Video Chip Set ATI
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video 4MB
Memory
Cache 256/512KB
BIOS Award
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, green PC connector,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), VGA feature
connector, VGA port, IR connector, USB
connector, ATX power connector, audio in –
CD-ROM, audio connector, TV-out connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| ATX power | ATX | Green PC | J16/pins |
| connector | | connector | 4 & 5 |
|------------------+----------+------------------+-----------|
| External audio | J1 | Turbo switch | J16/pins |
| connector | | | 6 & 7 |
|------------------+----------+------------------+-----------|
| Floppy drive | J3 | Reset switch | J16/pins |
| interface | | | 9 & 10 |
|------------------+----------+------------------+-----------|
| Audio in – | J4 | Keylock | J16/pins |
| CD-ROM | | | 11 - 15 |
|------------------+----------+------------------+-----------|
| IR connector | J7 | Speaker | J16/pins |
| | | | 17 - 20 |
|------------------+----------+------------------+-----------|
| PS/2 mouse port | J8 | VGA port | J17 |
|------------------+----------+------------------+-----------|
| Serial port 1 | J9 | TV out connector | J18 |
|------------------+----------+------------------+-----------|
| IDE interface 2 | J10 | VGA feature | J19 |
| | | connector | |
|------------------+----------+------------------+-----------|
| Serial port 2 | J11 | Soft off power | JP1 |
| | | supply | |
|------------------+----------+------------------+-----------|
| USB connector | J12 | Wake up on modem | JP2 |
| | | connector | |
|------------------+----------+------------------+-----------|
| Parallel port | J13 | CPU fan power | JP8 |
|------------------+----------+------------------+-----------|
| IDE interface 1 | J14 | IDE interface | JP12 |
| | | LED | |
|------------------+----------+------------------+-----------|
| Memory socket | J15 | EISA slot | SL1 |
|------------------+----------+------------------+-----------|
| Power LED | J16/pins | | |
| | 2 & 3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | Flash BIOS normal operation | JP6 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | Flash BIOS flash mode | JP6 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP15 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP15 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 | None |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 256KB | (2) 32K x 32 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | J15 |
|-----------------+-------------------+----------------------|
| 2MB | 2MB | Not Installed |
|-----------------+-------------------+----------------------|
| 4MB | 2MB | 2MB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86/6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 50MHz | 2x | 2 & 3 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 55MHz | 2x | 2 & 3 | 2 & | 1 & | 2 & |
| | | | | 3 | 2 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2x | 1 & 2 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2x | 2 & 3 | 1 & | 2 & | 2 & |
| | | | | 2 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 75MHz | 2x | 1 & 2 | 2 & | 1 & | 2 & |
| | | | | 3 | 2 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & |
| | | | | 3 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 66MHz | 2.5x | 2 & 3 | 1 & | 2 & | 3 & |
| | | | | 2 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 66MHz | 3x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 75MHz | 2.5x | 1 & 2 | 2 & | 1 & | 3 & |
| | | | | 3 | 2 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 266MHz | 75MHz | 3x | 1 & 2 | 2 & | 1 & | 1 & |
| | | | | 3 | 2 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86/6X86L) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 50MHz | 2x | 2 & 3 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 55MHz | 2x | 2 & 3 | 2 & | 1 & | 2 & |
| | | | | 3 | 2 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2x | 1 & 2 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2x | 2 & 3 | 1 & | 2 & | 2 & |
| | | | | 2 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 75MHz | 2x | 1 & 2 | 2 & | 1 & | 2 & |
| | | | | 3 | 2 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & |
| | | | | 3 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 66MHz | 2.5x | 2 & 3 | 1 & | 2 & | 3 & |
| | | | | 2 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 66MHz | 3x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 75MHz | 2.5x | 1 & 2 | 2 & | 1 & | 3 & |
| | | | | 3 | 2 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 266MHz | 75MHz | 3x | 1 & 2 | 2 & | 1 & | 1 & |
| | | | | 3 | 2 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 75MHz | 50MHz | 1.5x | 2 & 3 | 2 & | 2 & | 1 & |
| | | | | 3 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 90MHz | 60MHz | 1.5x | 1 & 2 | 2 & | 2 & | 1 & |
| | | | | 3 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 100MHz | 66MHz | 1.5x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 60MHz | 2x | 1 & 2 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 66MHz | 2x | 2 & 3 | 1 & | 2 & | 2 & |
| | | | | 2 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & |
| | | | | 3 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3 | 1 & | 2 & | 3 & |
| | | | | 2 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3 | 1 & | 2 & | 3 & |
| | | | | 2 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 66MHz | 3x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 66MHz | 3.5x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP3 | JP4 | JP5 | JP14 |
| speed | speed | | | | | |
|--------+--------+------------+-------+------+------+-------|
| 75MHz | 50MHz | 1.5x | 2 & 3 | 2 & | 2 & | 1 & |
| | | | | 3 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 90MHz | 60MHz | 1.5x | 1 & 2 | 2 & | 2 & | 1 & |
| | | | | 3 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 100MHz | 66MHz | 1.5x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|--------+--------+------------+-------+------+------+-------|
| 120MHz | 60MHz | 2x | 1 & 2 | 2 & | 2 & | 2 & |
| | | | | 3 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 133MHz | 66MHz | 2x | 2 & 3 | 1 & | 2 & | 2 & |
| | | | | 2 | 3 | 5, 3 |
| | | | | | | & 6, |
| | | | | | | 4 & 7 |
|--------+--------+------------+-------+------+------+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 2 & | 2 & | 3 & |
| | | | | 3 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 166MHz | 66MHz | 2.5x | 2 & 3 | 1 & | 2 & | 3 & |
| | | | | 2 | 3 | 6, 4 |
| | | | | | | & 7, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 200MHz | 66MHz | 3x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 3 |
| | | | | | | & 6, |
| | | | | | | 5 & 8 |
|--------+--------+------------+-------+------+------+-------|
| 233MHz | 66MHz | 3.5x | 2 & 3 | 1 & | 2 & | 1 & |
| | | | | 2 | 3 | 4, 2 |
| | | | | | | & 5, |
| | | | | | | 3 & 6 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP13 |
|----------------------------+-------------------------------|
| | 2.5v | Pins 9 & 10 closed |
|---+------------------------+-------------------------------|
| » | 2.8v | Pins 7 & 8 closed |
|---+------------------------+-------------------------------|
| | 2.9v | Pins 5 & 6 closed |
|---+------------------------+-------------------------------|
| | 3.2v | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 3.3v | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TV OUT SELECTION |
|------------------------------------------------------------|
| Setting | JP9 | JP10 |
|--------------------+-------------------+-------------------|
| » | Not installed | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+----------------+-------------------+-------------------|
| | Installed | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ONBOARD VIDEO SELECTION |
|------------------------------------------------------------|
| Setting | JP11 | JP16 |
|----------------------+----------------+--------------------|
| » | Enabled | Open | Pins 1 & 2 closed |
|---+------------------+----------------+--------------------|
| | Disabled | Closed | Pins 2 & 3 closed |
+------------------------------------------------------------+