
ELITEGROUP COMPUTER SYSTEMS, INC.

P5HX-LA

Processor            CX M1/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       ATI
Maximum Onboard      384MB
Memory
Maximum Video Memory 2MB
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, riser
                     slot, cache slot, IR connectors (2), USB connector,
                     CD-ROM audio connector, wavetable connector, Modem
                     Blaster Pro connector, audio interface connector
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Serial port 1             J1         IR connector              J17
                                       (Fast)

  Serial port 2             J2         Turbo LED             J18/pins 2 &
                                                                  3

  Parallel port             J3         Green PC connector    J18/pins 4 &
                                                                  5

  PS/2 mouse port           J4         Turbo switch          J18/pins 6 &
                                                                  7

  VGA port                  J6         Reset switch          J18/pins 9 &
                                                                 10

  CD-ROM audio in           J7         Power LED &          J18/pins 11 -
  connector                            keylock                   15

  USB connector             J8         Speaker              J18/pins 17 -
                                                                 20

  VGA feature               J9         Modem Blaster Pro         J20
  connector                            connector

  IR connector             J10         Audio interface           J21
  (Intel)                              connector

  Floppy drive             J11         Chassis fan power        JP18
  interface

  IDE interface 1          J12         Wavetable                JP19
                                       connector

  IDE interface 2          J13         Riser slot                SL1

  IDE interface LED        J15         Cache slot                SL2

  Green PC LED             J16

                        USER CONFIGURABLE SETTINGS

               Function                      Label           Position

      On board video enabled             JP1/pins 1 & 2        Open

      On board video disabled            JP1/pins 1 & 2       Closed

      VGA IRQ enabled                    JP1/pins 3 & 4        Open

      VGA IRQ disabled                   JP1/pins 3 & 4       Closed

      Spare I/O decoding                 JP1/pins 5 & 6        Open

      Block I/O decoding                 JP1/pins 5 & 6       Closed

     CMOS memory normal operation           JP11            Pins 2 & 3
                                                              closed

      CMOS memory clear                      JP11            Pins 1 & 2
                                                              closed

      Audio enabled                          JP23            Pins 2 & 3
                                                              closed

      Audio disabled                         JP23            Pins 1 & 2
                                                              closed

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (2) 1M x 36        None          None

     16MB       (2) 1M x 36    (2) 1M x 36       None

     16MB       (2) 2M x 36        None          None

     24MB       (2) 1M x 36    (2) 1M x 36    (2) 1M x 36

     24MB       (2) 2M x 36    (2) 1M x 36       None

     32MB       (2) 2M x 36    (2) 1M x 36    (2) 1M x 36

     32MB       (2) 2M x 36    (2) 2M x 36       None

     32MB       (2) 4M x 36        None          None

     40MB       (2) 4M x 36    (2) 1M x 36       None

     48MB       (2) 2M x 36    (2) 2M x 36    (2) 2M x 36

     48MB       (2) 4M x 36    (2) 1M x 36    (2) 1M x 36

     48MB       (2) 4M x 36    (2) 2M x 36       None

                  DRAM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

      64MB        (2) 4M x 36     (2) 2M x 36    (2) 2M x 36

      64MB        (2) 4M x 36     (2) 4M x 36        None

      64MB        (2) 8M x 36        None            None

      72MB        (2) 8M x 36     (2) 1M x 36        None

      80MB        (2) 8M x 36     (2) 1M x 36    (2) 1M x 36

      80MB        (2) 8M x 36     (2) 2M x 36        None

      96MB        (2) 4M x 36     (2) 4M x 36    (2) 4M x 36

      96MB        (2) 8M x 36     (2) 2M x 36    (2) 2M x 36

      96MB        (2) 8M x 36     (2) 4M x 36        None

     128MB        (2) 8M x 36     (2) 4M x 36    (2) 4M x 36

     128MB        (2) 8M x 36     (2) 8M x 36        None

     128MB       (2) 16M x 36        None            None

     136MB       (2) 16M x 36     (2) 1M x 36        None

     144MB       (2) 16M x 36     (2) 1M x 36    (2) 1M x 36

     160MB       (2) 16M x 36     (2) 4M x 36        None

     160MB       (2) 16M x 36     (2) 2M x 36    (2) 2M x 36

     192MB        (2) 8M x 36     (2) 8M x 36    (2) 8M x 36

     192MB       (2) 16M x 36     (2) 4M x 36    (2) 4M x 36

     192MB       (2) 16M x 36     (2) 4M x 36    (2) 4M x 36

     256MB       (2) 16M x 36     (2) 8M x 36    (2) 8M x 36

     256MB       (2) 16M x 36    (2) 16M x 36        None

     384MB       (2) 16M x 36    (2) 16M x 36    (2) 16M x 36

                            CACHE CONFIGURATION

     Size       Bank 0            SL1             TAG0           TAG1

  256KB (A)    (2) 32K x     Not installed     (1) 8K/32 x       None
                  32                                8

  256KB (B)      None         256KB module        None           None
                               installed

  512KB (A)    (2) 32K x      256KB module     (1) 8K/32 x    (1) 8K/32 x
                  32           installed            8             8

  512KB (B)      None         512KB module        None           None
                               installed

                  CACHE JUMPER CONFIGURATION

        Size                 JP4                  JP12

      256KB (A)             Closed         Pins 1 & 2 closed

      256KB (B)              Open          Pins 1 & 2 closed

      512KB (A)             Closed         Pins 3 & 4 closed

      512KB (B)              Open          Pins 3 & 4 closed

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (2) 256K x 16         None

       2MB        (2) 256K x 16    (2) 256K x 16

                        CPU SPEED SELECTION (CYRIX)

  CPU speed     Clock     Multiplier     JP5     JP6      JP8      JP14
                speed

   120MHz       50MHz         2x        2 & 3   1 & 2    2 & 3     1 & 2

   133MHz       55MHz         2x        2 & 3   1 & 2    1 & 2     1 & 2

   150MHz       60MHz         2x        2 & 3   1 & 2    1 & 2     1 & 2

   166MHz       66MHz         2x        2 & 3   1 & 2    2 & 3     1 & 2

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (CYRIX, CONT)

  CPU speed    Clock     Multiplier    JP15     JP16      JP17     JP20
               speed

   120MHz      50MHz         2x        1 & 2    1 & 2    1 & 2     2 & 3

   133MHz      55MHz         2x        1 & 2    1 & 2    1 & 2     1 & 2

   150MHz      60MHz         2x        1 & 2    1 & 2    1 & 2     2 & 3

   166MHz      66MHz         2x        1 & 2    1 & 2    1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed      Clock     Multiplier    JP5      JP6     JP8      JP14
                speed

    75MHz       50MHz         1.5x       1 & 2   1 & 2   2 & 3     1 & 2

    90MHz       60MHz         1.5x       1 & 2   1 & 2   1 & 2     1 & 2

   100MHz       66MHz         1.5x       1 & 2   1 & 2   2 & 3     1 & 2

   120MHz       60MHz          2x        2 & 3   1 & 2   1 & 2     1 & 2

   133MHz       66MHz          2x        2 & 3   1 & 2   2 & 3     1 & 2

   150MHz       60MHz         2.5x       2 & 3   2 & 3   1 & 2     1 & 2

   166MHz       66MHz         2.5x       2 & 3   2 & 3   2 & 3     1 & 2

    166MHz      66MHz         2.5x       2 & 3   2 & 3   2 & 3     2 & 3
   (P55C)

   200MHz       66MHz          3x        1 & 2   2 & 3   2 & 3     1 & 2

    200MHz      66MHz          3x        1 & 2   2 & 3   2 & 3     2 & 3
   (P55C)

  Note: Pins designated should be in the closed position.

                    CPU SPEED SELECTION (INTEL, CONT)

  CPU speed     Clock     Multiplier    JP15     JP16     JP17      JP20
                speed

    75MHz       50MHz       1.5x       1 & 2    1 & 2     1 & 2    2 & 3

    90MHz       60MHz       1.5x       1 & 2    1 & 2     1 & 2    2 & 3

   100MHz       66MHz       1.5x       1 & 2    1 & 2     1 & 2    1 & 2

   120MHz       60MHz        2x        1 & 2    1 & 2     1 & 2    2 & 3

   133MHz       66MHz        2x        1 & 2    1 & 2     1 & 2    1 & 2

   150MHz       60MHz       2.5x       1 & 2    1 & 2     1 & 2    2 & 3

   166MHz       66MHz       2.5x       1 & 2    1 & 2     1 & 2    1 & 2

    166MHz      66MHz       2.5x       2 & 3    2 & 3     2 & 3    1 & 2
   (P55C)

   200MHz       66MHz        3x        1 & 2    1 & 2     1 & 2    1 & 2

    200MHz      66MHz        3x        2 & 3    2 & 3     2 & 3    1 & 2
   (P55C)

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

       Voltage            V core            JP13               JP21

           3.3v            2.5v           Pins 1 & 2        Pins 1 & 2
                                           closed             closed

           3.3v            2.8v           Pins 1 & 2        Pins 3 & 4
                                           closed             closed

           3.3v            2.9v           Pins 1 & 2        Pins 5 & 6
                                           closed             closed

          3.52v            2.5v           Pins 3 & 4        Pins 1 & 2
                                           closed             closed

         3.52v            2.8v           Pins 3 & 4        Pins 3 & 4
                                           closed             closed

          3.52v            2.9v           Pins 3 & 4        Pins 5 & 6
                                           closed             closed

