SUPER MICRO

P55CMA/P55CMS (REV. 1.1)

Processor            Pentium
Processor Speed      75/90/100/120/133MHz
Chip Set             Intel
Max. Onboard DRAM    128MB
Cache                256/512KB
BIOS                 AMI
Dimensions           330mm x 218mm
I/O Options          PS/2 mouse port, parallel port, serial ports (2),
                     32-bit PCI slots (4), floppy drive interface, IDE
                     interfaces (2), cache slot, VRM module connector,
                     Legacy connector
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  VRM module                J1         External battery          JP30
  connector

  Chassis fan power         J18        Turbo LED                 JP32

  Power LED & keylock       J32        Infra red connector       JP68

  IDE interface LED         J34        Serial port 2             JS1

  Reset switch              J35        Serial port 1             JS2

  Speaker                   J39        Parallel port             JS3

  IDE interface 1           J70        Floppy drive              JS4
                                       interface

  IDE interface 2           J71        32-bit PCI slots       PC1 - PC4

  Legacy connector          J85        Cache slot                SL1

  PS/2 mouse port           J96

            Note: J18 and J96 are optional and may not be present. The
            location of J18 is unidentified. The size of the VRM module
            is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not             J28             Closed
      alter

  »   Factory configured - do not             J37           pins 1 & 2
      alter                                                   closed

  »   Factory configured - do not             J41              N/A
      alter

  »   CMOS memory normal operation            J42           pins 1 & 2
                                                              closed

      CMOS memory clear                       J42           pins 2 & 3
                                                              closed

  »   ISA CLCK select PCI CLCK/4              J67           pins 2 & 3
                                                              closed

      ISA CLCK select PCI CLCK/3              J67           pins 1 & 2
                                                              closed

             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) 1M x 36   (2) 2M x 36

     32MB        (2) 4M x 36      NONE

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

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

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

     64MB        (2) 8M x 36      NONE

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

     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

                           CACHE CONFIGURATION

  Note: To install 256KB or 512KB cache, install specific card in SL1.

             CPU SPEED CONFIGURATION

  Speed      J27       J29      J31       J40

  75MHz     Open     Closed    Closed     Open

  90MHz     Open     Closed     Open      Open

  100MHz    Open      Open     Closed     Open

  120MHz   Closed    Closed     Open      Open

  133MHz   Closed     Open     Closed     Open

        CPU VOLTAGE CONFIGURATION

       Voltage               JP11

        3.3v          pins 2 & 3 closed

        3.4v                 Open

        3.5v          pins 1 & 2 closed