
ELITEGROUP COMPUTER SYSTEMS, INC.

P5TX-B

Processor           AMD, Cyrix, Pentium
Processor Speed     75/90/100/120/133/150/166/200/233MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     256MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Award
Dimensions          281mm x 208mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, serial
                    ports (2), IR connectors (2), USB connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  USB connector             J5         Turbo LED             J16/pins 2 &
                                                                  3

  IDE interface 2           J6         Green PC connector    J16/pins 4 &
                                                                  5

  IDE interface 1           J7         Reset switch          J16/pins 9 &
                                                                 10

  Serial port               J8         Power LED &          J16/pins 11 -
                                       keylock                   15

  Serial port               J9         Speaker              J16/pins 17 -
                                                                 20

  IR connector              J10        Green PC LED              J18
  (Fast)

  IR connector              J11        IDE interface LED         J19

  Parallel port             J12        Chassis fan power         J20

  Floppy drive              J13        32-bit PCI slots       PC1  PC4
  interface

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J1           Unidentified
      alter

     Factory configured - do not           J2           Unidentified
      alter

     CMOS memory normal operation          JP2        Pins 2 & 3 closed

      CMOS memory clear                     JP2        Pins 1 & 2 closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       4MB        (2) 512K x 32         None

       8MB        (2) 512K x 32    (2) 512K x 32

       8MB         (2) 1M x 32          None

      12MB         (2) 1M x 32     (2) 512K x 32

      16MB         (2) 2M x 32          None

      16MB         (2) 1M x 32      (2) 1M x 32

      20MB         (2) 2M x 32     (2) 512K x 32

      24MB         (2) 2M x 32      (2) 1M x 32

      32MB         (2) 4M x 32          None

      32MB         (2) 2M x 32      (2) 2M x 32

      36MB         (2) 4M x 32     (2) 512K x 32

      40MB         (2) 4M x 32      (2) 1M x 32

      48MB         (2) 4M x 32      (2) 2M x 32

      64MB         (2) 8M x 32          None

      64MB         (2) 4M x 32      (2) 4M x 32

      68MB         (2) 8M x 32     (2) 512K x 32

      72MB         (2) 8M x 32      (2) 1M x 32

      80MB         (2) 8M x 32      (2) 2M x 32

      96MB         (2) 8M x 32      (2) 4M x 32

      128MB        (2) 8M x 32      (2) 8M x 32

      128MB        (2) 16M x 32         None

      132MB        (2) 16M x 32    (2) 512K x 32

                        DRAM CONFIGURATION (CONT)

          Size                    Bank 0                   Bank 1

          136MB                (2) 16M x 32             (2) 1M x 32

          144MB                (2) 16M x 32             (2) 2M x 32

          160MB                (2) 16M x 32             (2) 4M x 32

          192MB                (2) 16M x 32             (2) 8M x 32

          256MB                (2) 16M x 32             (2) 16M x 32

  Note: Board accepts EDO memory. The location of banks 0 & 1 are
  unidentified.

                   DIMM CONFIGURATION

       Size             Bank 2             Bank 3

       8MB            (1) 1M x 64           None

       16MB           (1) 2M x 64           None

       16MB           (1) 1M x 64       (1) 1M x 64

       24MB           (1) 2M x 64       (1) 1M x 64

       32MB           (1) 4M x 64           None

       32MB           (1) 2M x 64       (1) 2M x 64

       40MB           (1) 4M x 64       (1) 1M x 64

       48MB           (1) 4M x 64       (1) 2M x 64

       64MB           (1) 8M x 64           None

       64MB           (1) 4M x 64       (1) 4M x 64

       72MB           (1) 8M x 64       (1) 1M x 64

       80MB           (1) 8M x 64       (1) 2M x 64

       96MB           (1) 8M x 64       (1) 4M x 64

      128MB           (1) 8M x 64       (1) 8M x 64

      128MB          (1) 16M x 64           None

      136MB          (1) 16M x 64       (1) 1M x 64

      144MB          (1) 16M x 64       (1) 2M x 64

      160MB          (1) 16M x 64       (1) 4M x 64

      192MB          (1) 16M x 64       (1) 8M x 64

      256MB          (1) 16M x 64       (1) 16M x 64

  Note: The location of banks 2 & 3 are unidentified.

      CACHE CONFIGURATION

      Size          Bank 0

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                        CPU SPEED SELECTION (CYRIX)

    CPU speed      Clock speed       Multiplier              JP1

     120MHz           50MHz              2x           1 & 3, 4 & 6, 11 &
                                                     13, 19 & 21, 20 & 22

     133MHz           55MHz              2x           1 & 3, 4 & 6, 11 &
                                                     13, 17 & 19, 20 & 22

     150MHz           60MHz              2x            1 & 3, 4 & 6, 9 &
                                                     11, 19 & 21, 20 & 22

     166MHz           66MHz              2x           1 & 3, 4 & 6, 11 &
                                                     13, 19 & 21, 18 & 20

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

   CPU speed      Clock speed        Multiplier               JP1

     75MHz           50MHz              1.5x           1 & 3, 2 & 4, 11 &
                                                       13, 19 & 21, 20 &
                                                              22

     90MHz           60MHz              1.5x           1 & 3, 2 & 4, 9 &
                                                       11, 19 & 21, 20 &
                                                              22

     100MHz          66MHz              1.5x           1 & 3, 2 & 4, 11 &
                                                       13, 19 & 21, 18 &
                                                              20

     120MHz          60MHz               2x            1 & 3, 4 & 6, 9 &
                                                       11, 19 & 21, 20 &
                                                              22

     133MHz          66MHz               2x            1 & 3, 4 & 6, 11 &
                                                       13, 19 & 21, 18 &
                                                              20

     166MHz          66MHz              2.5x           3 & 5, 4 & 6, 9 &
                                                       11, 19 & 21, 20 &
                                                              22

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

   CPU speed      Clock speed      Multiplier               JP1

     75MHz           50MHz            1.5x         1 & 3, 2 & 4, 11 & 13,
                                                      19 & 21, 20 & 22

     90MHz           60MHz            1.5x          1 & 3, 2 & 4, 9 & 11,
                                                      19 & 21, 20 & 22

     100MHz          66MHz            1.5x         1 & 3, 2 & 4, 11 & 13,
                                                      19 & 21, 18 & 20

     120MHz          60MHz             2x          1 & 3, 4 & 6, 11 & 13,
                                                      19 & 21, 20 & 22

     133MHz          66MHz             2x          1 & 3, 4 & 6, 11 & 13,
                                                      19 & 21, 18 & 20

     150MHz          60MHz            2.5x          3 & 5, 4 & 6, 9 & 11,
                                                      19 & 21, 20 & 22

     166MHz          66MHz            2.5x         3 & 5, 4 & 6, 11 & 13,
                                                      19 & 21, 18 & 20

     200MHz          66MHz             3x          2 & 4, 3 & 5, 11 & 13,
                                                      19 & 21, 18 & 20

     233MHz          66MHz            3.5x         1 & 3, 2 & 4, 11 & 13,
                                                      19 & 21, 18 & 20

  Note: Pins designated should be in the closed position.

              CPU VOLTAGE SELECTION (SINGLE)

           Voltage                       JP3

            3.3v              Pins 3 & 4, 9 & 10 closed

            3.52v             Pins 1 & 2, 9 & 10 closed

                       CPU VOLTAGE SELECTION (DUAL)

         Voltage                 V core                     JP3

          3.3v                    2.5v              Pins 1 & 2, 11 & 12
                                                          closed

          3.3v                    2.8v               Pins 1 & 2, 9 & 10
                                                          closed

          3.3v                    2.9v               Pins 1 & 2, 7 & 8
                                                          closed

