ELITEGROUP COMPUTER SYSTEMS, INC.

SI54P AIO

Processor              Pentium
Processor Speed        75/90/100MHz
Chip Set               SIS
Max. Onboard DRAM      128MB
Cache                  256/512/1024KB
BIOS                   Award
Dimensions             330mm x 218mm
I/O Options            32-bit PCI slots (4), floppy drive interface, green
                       PC connector, IDE interfaces (2), parallel port,
                       serial ports (2)
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  3.3v connector            J1         Turbo LED             J13 pins 2 -
                                                                  3

  Floppy drive              J5         Green PC connector    J13 pins 4 -
  interface                                                       5

  Serial port 1             J6         Turbo switch          J13 pins 6 -
                                                                  7

  Serial port 2             J7         Reset switch          J13 pins 9 -
                                                                 10

  Parallel port             J8         Power LED &          J13 pins 11 -
                                       keylock                   15

  IDE interface 1           J9         Speaker              J13 pins 17 -
                                                                 20

  IDE interface 2           J10        32-bit PCI slots       PC1 - PC4

  IDE interface LED         J12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   On board I/O enabled                    JP3           pins 1 & 2
                                                              closed

      On board I/O disabled                   JP3           pins 2 & 3
                                                              closed

  »   PCI IDE interface enabled               JP4              Open

      PCI IDE interface disabled              JP4             Closed

  »   DRAM parity check enabled               JP9             Closed

      DRAM parity check disabled              JP9              Open

  »   Factory configured - do not             JP15             N/A
      alter

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

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

      16MB         (2) 2M x 36          NONE

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

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

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

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

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

      64MB         (2) 8M x 36          NONE

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

               DRAM JUMPER CONFIGURATION

            Size                        JP5

     Single sided only           pins 2 & 3 closed

  Single and double sided    pins 1 & 2, 3 & 4 closed

                            CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG        Dirty (U28)

     256KB       (4) 32K x 8    (4) 32K x 8    (1) 32K x 8   (1) 32K x 8

     512KB       (4) 64K x 8    (4) 64K x 8    (1) 32K x 8   (1) 32K x 8

      1MB        (4) 128K x 8   (4) 128K x 8   (1) 32K x 8   (1) 32K x 8

  CACHE JUMPER CONFIGURATION

   Size      JP10      JP11

  256KB      Open      Open

  512KB      Open     Closed

   1MB      Closed    Closed

                       CPU SPEED CONFIGURATION

               Speed                              JP7

               75MHz                pins 2 & 3, 5 & 6, 7 & 8 closed

               90MHz                pins 2 & 3, 4 & 5, 8 & 9 closed

              100MHz                pins 1 & 2, 5 & 6, 7 & 8 closed

                       CPU SIGNAL CONFIGURATION

          Type                   JP12                    JP14

    Write back cache       pins 1 & 2 closed              n/a

  Write through cache      pins 2 & 3 closed              n/a

   Always invalidated             n/a              pins 1 & 2 closed

  Write to invalidated            n/a              pins 2 & 3 closed

                    ECP MODE CONFIGURATION

       Setting               JP1                  JP2

    DRQ1 - DACK1       pins 1 & 2 closed   pins 2 & 3 closed

    DRQ3 - DACK3       pins 2 & 3 closed   pins 1 & 2 closed

            BIOS CONFIGURATION

       Setting               JP8

    Flash ROM +5v     pins 1 & 2 closed

   Flash ROM +12v     pins 2 & 3 closed

        EPROM                Open