IBM CORPORATION

PC 730/750 SERIES (TYPE 6877, 6887)

Processor             Pentium
Processor Speed       75/90/100/120/133/150/166MHz
Chip Set              Unidentified
Video Chip Set        None
Maximum Onboard       128MB
Memory
Maximum Video Memory  None
Cache                 256/512KB
BIOS                  Unidentified
Dimensions            330mm x 218mm
I/O Options           Floppy drive interface, IDE interfaces (2), parallel
                      port, PS/2 mouse port, serial ports (2), VESA pass
                      through connector, VGA port, riser slot, cache slot,
                      IR connector, VRM connector, DSP audio connector,
                      external ring wake up connector, modem ring
                      connector, LAN wake up connector, on/off switch
                      connector, tamper connector
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  VGA port                  CN1        Speaker                    J3

  Parallel port             CN2        IDE interface LED          J4

  Serial port 2             CN3        Power LED                  J5

  Serial port 1             CN4        Modem ring                 J9
                                       connector

  PS/2 mouse port           CN5        External ring wake        J13
                                       up connector

  IR connector              CN6        LAN wake up               J14
                                       connector

  IDE interface 2           CN7        On/off switch             J18
                                       connector

  IDE interface 1           CN8        Tamper connector          J19

  Floppy drive              CN9        Riser slot                SL1
  interface

  VESA pass through         CN10       Cache slot                SL2
  connector

  DSP audio connector        J2        VRM connector             VRM

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

  »   Factory configured - do not            J1          Unidentified
      alter

  »   Password enabled                      J15        Pins 1 & 2 closed

      Password disabled                     J15        Pins 2 & 3 closed

  »   System administrator password        SW1/5              On
      enabled

      System administrator password        SW1/5              Off
      disabled

  »   Floppy drive write protect           SW1/6              Off
      disabled

      Floppy drive write protect           SW1/6              On
      enabled

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

     16MB           None           None       (1) 2M x 64

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

     24MB           None       (2) 1M x 36    (1) 2M x 64

     24MB       (2) 1M x 36        None       (1) 2M x 64

     32MB           None           None       (1) 4M x 64

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

     40MB       (2) 1M x 36    (2) 2M x 36    (1) 2M x 64

     40MB           None       (2) 1M x 36    (1) 4M x 64

     48MB       (2) 1M x 36    (2) 1M x 36    (1) 4M x 64

     64MB       (2) 2M x 36    (2) 2M x 36    (1) 4M x 64

     72MB       (2) 1M x 36    (2) 4M x 36    (1) 4M x 64

     80MB       (2) 2M x 36    (2) 4M x 36    (1) 4M x 64

     96MB       (2) 4M x 36    (2) 4M x 36    (1) 4M x 64

     128MB      (2) 4M x 36    (2) 8M x 36    (1) 4M x 64

                CACHE CONFIGURATION

           Size                      SL1

          256KB            256KB module installed

          512KB            512KB module installed

                            CPU SPEED SELECTION

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   75MHz     50MHz        1.5x         Off      Off       On        On

   90MHz     60MHz        1.5x         Off      Off       On        Off

  100MHz     66MHz        1.5x         Off      Off       Off       On

  120MHz     60MHz         2x          On       Off       On        Off

  133MHz     66MHz         2x          On       Off       Off       On

  150MHz     60MHz        2.5x         On        On       On        Off

  166MHz     66MHz        2.5x         On        On       Off       On