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       # 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  512MB (EDO supported)                         
          Memory           
          Maximum Video    1MB                                           
          Memory           
          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                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | Chassis fan      |    C1    | Ethernet 10Base T |   CN4    |
          | power            |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Auxiliary power  |    C2    | Parallel port     |   CN5    |
          |------------------+----------+-------------------+----------|
          | Hard drive fan   |    C3    | Wide SCSI         |   CN6    |
          | power            |          | interface         |          |
          |                  |          | (external)        |          |
          |------------------+----------+-------------------+----------|
          | System fan power |    C4    | Serial port       |   CN7    |
          |------------------+----------+-------------------+----------|
          | Operator panel   |    C5    | Wide SCSI         |   CN8    |
          | connector        |          | interface         |          |
          |                  |          | (internal)        |          |
          |------------------+----------+-------------------+----------|
          | Chassis fan      |    C6    | Floppy drive      |   CN9    |
          | power            |          | 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  |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                        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  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 24MB  | (1) 2M x 64 |  (1) 1M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 24MB  | (1) 1M x 64 |  (1) 1M x  |  (1) 1M x  |    None    |
          |       |             |     64     |     64     |            |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 4M x 64 |    None    |    None    |    None    |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 2M x 64 |  (1) 2M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 1M x 64 |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
          |       |             |     64     |     64     |     64     |
          |-------+-------------+------------+------------+------------|
          | 40MB  | (1) 4M x 64 |  (1) 1M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 48MB  | (1) 4M x 64 |  (1) 2M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 48MB  | (1) 2M x 64 |  (1) 2M x  |  (1) 2M x  |    None    |
          |       |             |     64     |     64     |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 8M x 64 |    None    |    None    |    None    |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 4M x 64 |  (1) 4M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 2M x 64 |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
          |       |             |     64     |     64     |     64     |
          |-------+-------------+------------+------------+------------|
          | 72MB  | (1) 8M x 64 |  (1) 1M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 8M x 64 |  (1) 2M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 8M x 64 |  (1) 4M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 4M x 64 |  (1) 4M x  |  (1) 4M x  |    None    |
          |       |             |     64     |     64     |            |
          |-------+-------------+------------+------------+------------|
          | 128MB |  (1) 16M x  |    None    |    None    |    None    |
          |       |     64      |            |            |            |
          |-------+-------------+------------+------------+------------|
          | 128MB | (1) 8M x 64 |  (1) 8M x  |    None    |    None    |
          |       |             |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 128MB | (1) 4M x 64 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     64     |     64     |     64     |
          |-------+-------------+------------+------------+------------|
          | 136MB |  (1) 16M x  |  (1) 1M x  |    None    |    None    |
          |       |     64      |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 144MB |  (1) 16M x  |  (1) 2M x  |    None    |    None    |
          |       |     64      |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 160MB |  (1) 16M x  |  (1) 4M x  |    None    |    None    |
          |       |     64      |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 192MB |  (1) 16M x  |  (1) 8M x  |    None    |    None    |
          |       |     64      |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 192MB | (1) 8M x 64 |  (1) 8M x  |  (1) 8M x  |    None    |
          |       |             |     64     |     64     |            |
          |-------+-------------+------------+------------+------------|
          | 256MB |  (1) 16M x  | (1) 16M x  |    None    |    None    |
          |       |     64      |     64     |            |            |
          |-------+-------------+------------+------------+------------|
          | 256MB | (1) 8M x 64 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |       |             |     64     |     64     |     64     |
          |-------+-------------+------------+------------+------------|
          | 384MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  |    None    |
          |       |     64      |     64     |     64     |            |
          |-------+-------------+------------+------------+------------|
          | 512MB |  (1) 16M x  | (1) 16M x  | (1) 16M x  | (1) 16M x  |
          |       |     64      |     64     |     64     |     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 (CON’T)                 |
          |------------------------------------------------------------|
          |  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.                                           |
          +------------------------------------------------------------+