IBM CORPORATION

PC SERVER 310 - TYPE 8639

Processor                Pentium
Processor Speed          75/90/100/120/133MHz
Chip Set                 Unidentified
Video Chip Set           Unidentified
Maximum Onboard Memory   192MB
Maximum Video Memory     Unidentified
Cache                    256/1024KB
BIOS                     Unidentified
Dimensions               330mm x 218mm
I/O Options              Floppy drive interface, IDE interfaces (2),
                         parallel port, PS/2 mouse port, serial ports (2),
                         VGA port, riser slot, CD-ROM audio interface,
                         audio line in connector, audio line out connector
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Audio line out            CN1       Floppy drive               CN8
  connector                           interface

  Audio line in             CN2       IDE interface              CN9
  connector

  PS/2 mouse port           CN3       IDE interface              CN10

  Serial port               CN4       On/off switch              J37
                                      connector

  Serial port               CN5       On/off switch power        J38
                                      supply connector

  Parallel port             CN6       CD-ROM audio               JP1
                                      interface

  VGA port                  CN7       Riser slot                 SL1

                        USER CONFIGURABLE SETTINGS

               Function                   Label            Position

      PS/2 mouse jumper                    J28           Unidentified

  »   Modem answers on ring                MRD         Pins 2 & 3 closed

      Modem does not answer on ring        MRD         Pins 1 & 2 closed

  »   Password normal operation            PWD         Pins 1 & 2 closed

      Password clear                       PWD         Pins 2 & 3 closed

  »   Floppy drive write protect            WP         Pins 2 & 3 closed
      disabled

      Floppy drive write protect            WP         Pins 1 & 2 closed
      enabled

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (2) 1M x 36        None          None

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

     16MB       (2) 2M x 36        None          None

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

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

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

     32MB       (2) 4M x 36        None          None

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

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

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

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

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

     64MB       (2) 8M x 36        None          None

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

     72MB       (2) 8M x 36    (2) 1M x 36       None

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

     80MB       (2) 8M x 36    (2) 2M x 36       None

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

                DRAM CONFIGURATION (CON’T)

     Size          Bank 0         Bank 1        Bank 2

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

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

     136MB      (2) 8M x 36    (2) 8M x 36    (2) 1M x 36

     144MB      (2) 8M x 36    (2) 8M x 36    (2) 2M x 36

     160MB      (2) 8M x 36    (2) 8M x 36    (2) 4M x 36

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

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     256KB        (8) 32K x 8    Unidentified

      1MB         (8) 64K x 8    Unidentified

                        CACHE JUMPER CONFIGURATION

    Size           J3              J4             J5             J6

    256KB       Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

     1MB        Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
                 closed          closed         closed         closed

                        VIDEO MEMORY CONFIGURATION

                Size                                Bank 0

                1MB                              (2) 256K x 16

  Note: The maximum video memory size is unidentified. This configuration
  is for an upgrade.

                            CPU SPEED SELECTION

  CPU speed       Clock        Multiplier         J26            J27
                  speed

    75MHz         50MHz           1.5x         Pins 2 & 3     Pins 2 & 3
                                                 closed         closed

    90MHz         60MHz           1.5x         Pins 2 & 3     Pins 1 & 2
                                                 closed         closed

    100MHz        66MHz           1.5x         Pins 1 & 2     Pins 1 & 2
                                                 closed         closed

    120MHz        60MHz            2x          Pins 2 & 3     Pins 1 & 2
                                                 closed         closed

    133MHz        66MHz            2x          Pins 1 & 2     Pins 1 & 2
                                                 closed         closed

                         CPU BUS - CORE SELECTION

              Bus - core                              J101

                   1/2                         Pins 2 & 3 closed

  »                2/3                         Pins 1 & 2 closed