
IBM CORPORATION

PC SERVER 325 (TYPE 8639) MODEL PBO, PTO, PTW, RBO

Processor                  Pentium II/Pentium Pro
Processor Speed            233/266MHz
Chip Set                   Unidentified
Video Chip Set             Unidentified
Maximum Onboard Memory     512MB (EDO supported)
Maximum Video Memory       1MB
Cache                      256KB
BIOS                       Unidentified
Dimensions                 305mm x 244mm
I/O Options                32-bit PCI slots (6), Ethernet 10BaseT
                           connector, floppy drive interface, Wide SCSI
                           interfaces (2), parallel port, PS/2 mouse port,
                           serial port, USB connectors (2)
NPU Options                None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  Chassis fan power         C1         Ethernet 10Base T          CN4
                                       connector

  Auxiliary power           C2         Parallel port              CN5

  Hard drive fan            C3         Wide SCSI interface        CN6
  power                                (external)

  System fan power          C4         Serial port                CN7

  Operator panel            C5         Wide SCSI interface        CN8
  connector                            (internal)

  Chassis fan power         C6         Floppy drive               CN9
                                       interface

  Speaker                   C7         32-bit PCI slots        PC1 - PC6

  Keylock                   C8         CPU slot                   SL1

  PS/2 mouse port           CN1        System Management          SL2
                                       slot

  USB connector             CN2        RAID slot                  SL3

  USB connector             CN3

                        USER CONFIGURABLE SETTINGS

                Function                    Label           Position

     Factory configured - do not            J25          Unidentified
      alter (video enable/disable)

      Flash write disabled                  J23C       Pins 1 & 2 closed

      Flash write enabled                   J23C       Pins 2 & 3 closed

      BIOS normal operation                 J23D       Pins 1 & 2 closed

      BIOS recovery mode                    J23D       Pins 2 & 3 closed

      Boot block disabled                   J23E       Pins 1 & 2 closed

      Boot block enabled                    J23E       Pins 2 & 3 closed

      VPD write disabled                    J23F       Pins 1 & 2 closed

      VPD write enabled                     J23F       Pins 2 & 3 closed

     CMOS memory normal operation          J23G       Pins 1 & 2 closed

      CMOS memory clear                     J23G       Pins 2 & 3 closed

     Factory configured - do not           J23H              Open
      alter

    VIDEO MEMORY CONFIGURATION

      Size            Bank 0

       1MB        (2) 256K x 16

                      CPU TYPE SELECTION

        Type                 J28A                 J28B

     Pentium II        Pins 2 & 3 closed   Pins 2 & 3 closed

     Pentium Pro       Pins 1 & 2 closed   Pins 1 & 2 closed

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  VRM connector              VRM1      VRM connector              VRM2

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J8           Unidentified
      alter

                            DIMM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

      8MB        (1) 1M x 64       None           None           None

     16MB        (1) 2M x 64       None           None           None

     16MB        (1) 1M x 64   (1) 1M x 64        None           None

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

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

     32MB        (1) 4M x 64       None           None           None

     32MB        (1) 2M x 64   (1) 2M x 64        None           None

     32MB        (1) 1M x 64   (1) 1M x 64    (1) 1M x 64    (1) 1M x 64

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

     48MB        (1) 4M x 64   (1) 2M x 64        None           None

     48MB        (1) 2M x 64   (1) 2M x 64    (1) 2M x 64        None

     64MB        (1) 8M x 64       None           None           None

     64MB        (1) 4M x 64   (1) 4M x 64        None           None

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

     72MB        (1) 8M x 64   (1) 1M x 64        None           None

     80MB        (1) 8M x 64   (1) 2M x 64        None           None

     96MB        (1) 8M x 64   (1) 4M x 64        None           None

     96MB        (1) 4M x 64   (1) 4M x 64    (1) 4M x 64        None

     128MB       (1) 16M x 64      None           None           None

     128MB       (1) 8M x 64   (1) 8M x 64        None           None

     128MB       (1) 4M x 64   (1) 4M x 64    (1) 4M x 64    (1) 4M x 64

     136MB       (1) 16M x 64  (1) 1M x 64        None           None

     144MB       (1) 16M x 64  (1) 2M x 64        None           None

     160MB       (1) 16M x 64  (1) 4M x 64        None           None

     192MB       (1) 16M x 64  (1) 8M x 64        None           None

     192MB       (1) 8M x 64   (1) 8M x 64    (1) 8M x 64        None

     256MB       (1) 16M x 64  (1) 16M x 64       None           None

     256MB       (1) 8M x 64   (1) 8M x 64    (1) 8M x 64    (1) 8M x 64

     384MB       (1) 16M x 64  (1) 16M x 64   (1) 16M x 64       None

     512MB       (1) 16M x 64  (1) 16M x 64   (1) 16M x 64   (1) 16M x 64

            Note: Board accepts EDO memory.

                  CACHE CONFIGURATION

  Note: 256KB cache is located on the Pentium II CPU.

                        CPU SPEED SELECTION

  Speed      J9       J10       J12       J17      J18       J20

  233MHz    2 & 3     Open     2 & 3     Open     Closed    Closed

  266MHz    2 & 3     Open     2 & 3     Open     Closed    Closed

  Note: Pins designated should be in the closed position.

                CPU SPEED SELECTION (CONT)

  Speed       J27       J28       J29       J30       J38

  233MHz    Closed     Open       Open     Closed     Open

  266MHz    Closed    Closed     Closed     Open      Open

  Note: Pins designated should be in the closed position.

                       MISCELLANEOUS TECHINCAL NOTE

  A diagram & jumper settings for the Pentium Pro CPU card is
  unidentified.

