
ELITEGROUP COMPUTER SYSTEMS, INC.

SI56P AVIO

Processor             CX M1/Pentium
Processor Speed       75/90/100/120/133/150/166MHz
Chip Set              SIS
Video Chip Set        None
Maximum Onboard       128MB (EDO supported)
Memory
Maximum Video Memory  None
Cache                 256/512/1024KB
BIOS                  Unidentified
Dimensions            330mm x 218mm
I/O Options           32-bit PCI slots (3), floppy drive interface, green
                      PC connector, IDE interfaces (2), parallel port,
                      PS/2 mouse interface, serial ports (2), serial port,
                      VGA feature connector, VGA interface, IR connector,
                      VRM connector
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  PS/2 mouse                J1        External battery           J15
  interface

  VGA feature               J5        Turbo LED              J16 pins 2 &
  connector                                                       3

  VGA interface             J6        Green PC connector     J16 pins 4 &
                                                                  5

  Floppy drive              J8        Turbo switch           J16 pins 6 &
  interface                                                       7

  IDE interface LED         J9        Reset switch           J16 pins 9 &
                                                                 10

  Serial port 2            J10        Power LED & keylock   J16 pins 11 -
                                                                 15

  Serial port 1            J11        Speaker               J16 pins 17 -
                                                                 20

  IDE interface 1          J12        Chassis fan power          J26

  Parallel port            J13        IR connector               JP8
                                      (optional)

  IDE interface 2          J14        32-bit PCI slots        PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Super I/O enabled                       JP11             Open

      Super I/O disabled                      JP11            Closed

     Flash BIOS voltage select 5v            JP25          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 12v           JP25          Pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP26             Open

      CMOS memory clear                       JP26            Closed

     On board video enabled                  JP27            Closed

      On board video disabled                 JP27             Open

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1M x 36      None

     16MB        (2) 2M x 36      None

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

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

     32MB        (2) 4M x 36      None

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

     40MB        (2) 4M x 36   (2) 1M x 36

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

     64MB        (2) 8M x 36      None

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

     72MB        (2) 8M x 36   (2) 1M x 36

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

     96MB        (2) 8M x 36   (2) 4M x 36

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

  Note: Board accepts EDO memory.

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

   256KB (A)     (2) 32K x 32        None        (1) 32K x 8

   256KB (B)         None         (8) 32K x 8    (1) 32K x 8

     512KB           None         (8) 64K x 8    (1) 32K x 8

      1MB            None        (8) 128K x 8    (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JP6                  JP7

      256KB (A)        Pins 1 & 2 closed   Pins 1 & 2 closed

      256KB (B)        Pins 1 & 2 closed   Pins 1 & 2 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

         1MB           Pins 2 & 3 closed   Pins 2 & 3 closed

                         CACHE TYPE CONFIGURATION

           Size                      JP1                     JP2

            Mixed            Pins 2 & 3 closed       Pins 2 & 3 closed

             Pure             Pins 1 & 2 closed       Pins 1 & 2 closed

                        CPU SPEED SELECTION (CYRIX)

  CPU speed      Clock      Multiplier      JP15       JP22       JP24
                speed

   120MHz       50MHz           2x         1 & 2       Open      Closed

   150MHz       60MHz           2x         3 & 4       Open      Closed

   166MHz       66MHz           2x         1 & 2,      Open      Closed
                                           3 & 4

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

  CPU speed     Clock      Multiplier      JP15       JP22        JP24
                speed

   75MHz        50MHz         1.5x         1 & 2      Open        Open

   90MHz        60MHz         1.5x         3 & 4      Open        Open

   100MHz       66MHz         1.5x         1 & 2,     Open        Open
                                           3 & 4

   120MHz       60MHz          2x          3 & 4      Open       Closed

   133MHz       66MHz          2x          1 & 2,     Open       Closed
                                           3 & 4

   150MHz       60MHz         2.5x         3 & 4     Closed      Closed

   166MHz       66MHz         2.5x         1 & 2,    Closed      Closed
                                           3 & 4

  Note: Pins designated should be in the closed position.

          CPU VOLTAGE SELECTION

       Voltage               JP16

     3.3v (STD)       Pins 1 & 2 closed

     3.385v (VR)      Pins 3 & 4 closed

    3.525v (VRE)      Pins 5 & 6 closed

                           DMA CHANNEL SELECTION

         Channel                   JP12                     JP13

             1             Pins 1 & 2 closed        Pins 1 & 2 closed

              3             Pins 2 & 3 closed        Pins 2 & 3 closed

