
EFA CORPORATION

P54CSPIO

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

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Auxiliary keyboard         J1        IDE interface LED         J11
  & PS/2 mouse

  Parallel port              J2        Power LED & keylock       J12

  Serial port 2              J3        Turbo LED                 J13

  Serial port 1              J4        Speaker                   J14

  Floppy drive               J6        IR function               J17
  interface                            connector

  IDE interface -            J7        Reset switch              JP20
  secondary

  IDE interface -            J8        Turbo switch              JP21
  primary

  3.3v CPU connector         J9        32-bit PCI slots       PC1 - PC4

  External battery          J10

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP1              N/A
      alter

     Factory configured - do not             JP2              N/A
      alter

     Factory configured - do not             JP3              N/A
      alter

     IDE disabled - controlled by            JP4             Closed
      Sostware

      IDE enabled                             JP4              Open

     On board IDE is primary                 JP5             Closed

      Other IDE is primary                    JP5              Open

     On board IDE is secondary               JP6             Closed

      Other IDE is secondary                  JP6              Open

     Factory configured - do not             JP13             N/A
      alter

     Factory configured - do not             JP16             Open
      alter

     Factory configured - do not             JP17          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP18          pins 2 & 3
      alter                                                   closed

     BIOS type select EPROM                  JP22          pins 1 & 2
                                                              closed

      BIOS type select flash BIOS             JP22          pins 2 & 3
                                                              closed

     Factory configured - do not             JP23            Closed
      alter

     CMOS memory normal operation            JP24             Open

      CMOS memory clear                       JP24            Closed

     Monitor type select color               JP25            Closed

      Monitor type select monochrome          JP25             Open

                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

      12MB        (2) 512K x 36     (2) 1M x 36

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

      16MB         (2) 2M x 36          NONE

      20MB        (2) 512K x 36     (2) 2M x 36

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

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

      32MB         (2) 4M x 36          NONE

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

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

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

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

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

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

      128MB        (2) 16M x 36         NONE

                         DRAM JUMPER CONFIGURATION

      Bank 0            Bank 1             JP7                 JP8

   Single side       Single side        pins 1 & 2      pins 1 & 2 closed
                                          closed

   Double side       Double side        pins 2 & 3      pins 2 & 3 closed
                                          closed

   Double side       Single side        pins 2 & 3      pins 2 & 3 closed
                                          closed

   Single side       Double side        pins 1 & 2      pins 1 & 2 closed
                                          closed

              CACHE CONFIGURATION

      Size          Bank 0           TAG

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

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

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

                  CACHE JUMPER CONFIGURATION

        Size                 JP14                 JP15

        256KB          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

                          CPU SPEED CONFIGURATION

    System      CPU speed         JP11           JP12           JP19
    speed

    50MHz         75MHz        pins 1 & 2     pins 1 & 2        Open
                                 closed         closed

    50MHz         100MHz       pins 1 & 2     pins 1 & 2      pins 1 & 2
                                 closed         closed         closed

    60MHz         90MHz        pins 1 & 2     pins 2 & 3        Open
                                 closed         closed

    66MHz         100MHz       pins 2 & 3     pins 2 & 3        Open
                                 closed         closed

                      DMA CONFIGURATION

     DMA channel             JP9                  JP10

      Channel 3        pins 2 & 3 closed   pins 2 & 3 closed

      Channel 5        pins 1 & 2 closed   pins 1 & 2 closed

