
UNIDENTIFIED

P54C MAINBOARD

Processor         Pentium
Processor Speed   75/90/100MHz
Chip Set          Unidentified
Max. Onboard DRAM 768MB
Cache             256/512/1024KB
BIOS              Award
Dimensions        330mm x 218mm
I/O Options       32-bit PCI slots (4), green PC connector
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Speaker                   CN1       PCI feature connector       J11

  Power LED & keylock       CN2       PCI feature connector       J12

  Reset switch              CN3       Green PC connector          JP10

  Turbo LED                 CN4       32-bit PCI slots          PC1 - PC4

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     CMOS memory normal operation            JP1              Open

      CMOS memory clear                       JP1             Closed

      ADS select normal operation             JP4              Open

      ADS select delay ADS                    JP4             Closed

     BIOS type select EPROM                  JP8              Open

      BIOS type select 5v                     JP8           pins 2 & 3
                                                              closed

      BIOS type select 12v                    JP8           pins 1 & 2
                                                              closed

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       2MB        (2) 256K x 36         NONE            NONE

       4MB        (2) 256K x 36    (2) 256K x 36        NONE

       4MB        (2) 512K x 36         NONE            NONE

       6MB        (2) 256K x 36    (2) 256K x 36    (2) 256K x 36

       6MB        (2) 256K x 36    (2) 512K x 36        NONE

       8MB        (2) 512K x 36    (2) 512K x 36        NONE

       8MB         (2) 1M x 36          NONE            NONE

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

      12MB         (2) 1M x 36     (2) 512K x 36        NONE

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

      16MB         (2) 1M x 36     (2) 512K x 36    (2) 512K x 36

      16MB         (2) 2M x 36          NONE            NONE

      20MB         (2) 1M x 36      (2) 1M x 36     (2) 512K x 36

      20MB         (2) 2M x 36     (2) 512K x 36        NONE

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

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

      24MB         (2) 2M x 36     (2) 512K x 36    (2) 512K x 36

      32MB         (2) 4M x 36          NONE            NONE

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

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

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

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

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

      64MB         (2) 8M x 36          NONE            NONE

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

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

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

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

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

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

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

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

      192MB        (2) 16M x 36     (2) 8M x 36         NONE

                  DRAM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1          Bank 2

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

     256MB       (2) 32M x 36        NONE            NONE

     512MB       (2) 32M x 36    (2) 32M x 36        NONE

     768MB       (2) 32M x 36    (2) 32M x 36    (2) 32M x 36

                            CACHE CONFIGURATION

      Size           Bank 0          Bank 1                TAG

     256KB         (4) 32K x 8    (4) 32K x 8     (1) 8K/(1)16K/(1) 32K x
                                                            8

     512KB         (4) 64K x 8    (4) 64K x 8       1)16K/(1) 32K x 8

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

                  CACHE JUMPER CONFIGURATION

        Size                 JP17                 JP18

        256KB          pins 1 & 2 closed   pins 1 & 2 closed

        512KB          pins 1 & 2 closed   pins 2 & 3 closed

         1MB           pins 2 & 3 closed   pins 2 & 3 closed

                CPU SPEED CONFIGURATION

           Speed                        JP9

           75MHz                       Open

           90MHz                 pins 1 & 2 closed

           100MHz            pins 1 & 2, 3 & 4 closed

