ͻ
                                                                         
     Matched Memory Computer Compatibility: IBM Models 65SX - 70         
                                                                         
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   IBM PS/2 MODEL 65SX-061, 121, 321

      The PS/2 Model 65SX comes standard with 2MB memory (a 2MB module in
      memory socket 1 on the system board). The system is expandable to 8MB
      on the system board and to 16MB by adding an Above Board MC in an
      expansion slot.

      Intel Matched Memory Compatibility:
          Module  Intel Part     IBM Equivalent
           Size     Number         Part Number
           1MB        PCSM 1170           6450603
           2MB        PCSM 1270           6450604
           4MB        PCSM 1455           87F9977 or 34F2933
          8-16MB    Above Board MC
                  PSMB 5300

      ͸
      System  Recommended Upgrade PathAlternate
      Memory ĴUpgrade  
      Desired  Socket 1    Socket 2  Path?    
      Ĵ
        2 MB      *                           
      Ĵ
        3 MB  Standard**  PCSM 1170           
      Ĵ
        4 MB  PCSM 1455               Note A  
      Ĵ
        5 MB  PCSM 1455   PCSM 1170           
      Ĵ
        6 MB  PCSM 1455   Standard**  Note B  
      Ĵ
        7 MB               NA                   
      Ĵ
        8 MB  PCSM 1455   PCSM 1455   Note C  
      Ĵ
      9-16MB  Above Board MC in expansion slot  
      ;

      Configuration Notes:
       *  Standard 2MB memory modules shipped with this system or PCSM
          1270.
       ** Use the standard 2MB module already in that socket or PCSM 1270.
       A  An alternate would be to put an Above Board MC with 2MB in an
          expansion slot, or one PCSM 1270 in each socket.
       B  An alternate would be to put an Above Board MC with 4MB in an
          expansion slot and a PCSM 1270 in socket 1.
       C  An alternate would be to put an Above Board MC with 6MB in an
          expansion slot and a PCSM 1270 in socket 1.

   IBM PS/2 MODEL 70-E61, 061, 121

      These PS/2 Model 70 computers come standard with one 2MB memory
      module on the system board. These system boards have 3 available
      memory sockets, and are expandable to 6MB. These systems are further
      expandable using an Above Board MC.

      Intel Matched Memory Compatibility:
            Module     Intel Part     IBM Equivalent
             Size        Number         Part Number
             1MB       PCSM 1170          6450603
             2MB       PCSM 1270          6450604
                  Above Board MC
                  PSMB 5300

      ͸
      System  Recommended Memory Upgrade Path      Alternate
      Memory ĴUpgrade  
      Desired  Socket 1    Socket 2    Socket 3  Path?    
      Ĵ
        2 MB      *                                       
      Ĵ
        3 MB      *       PCSM 1170                       
      Ĵ
        4 MB      *       PCSM 1270               Note A  
      Ĵ
        5 MB      *       PCSM 1270   PCSM 1170           
      Ĵ
        6 MB      *       PCSM 1270   PCSM 1270   Note B  
      Ĵ
       7+ MB   Above Board MC (in an expansion slot)         
      ;

      Configuration Notes:
       *  Use the standard 2MB memory module supplied with the computer or
          PCSM 1270.
       A  An alternate would be to put an Above Board MC with 2MB into an
          expansion slot in addition to the 2MB module in socket 1.
       B  An alternate would be to put an Above Board MC with 4MB into an
          expansion slot in addition to the 2MB module in socket 1.

   IBM PS/2 MODEL 70-A21, A61, B21, B61

      These PS/2 Model 70 computers come standard with one 2MB memory
      module on the system board. These system boards have 4 available
      memory sockets, and are expandable to 8MB. These systems are further
      expandable using an Above Board MC.

      Intel Matched Memory Compatibility:
            Module     Intel Part     IBM Equivalent
             Size        Number         Part Number
             2MB  PCSM 1275          6450608
                  Above Board MC
                  PSMB 5300

      ͸
      System       Recommended Memory Upgrade Path      Alternate
      Memory ĴUpgrade  
      Desired Socket 1  Socket 2  Socket 3  Socket 4 Path?    
      Ĵ         
        2 MB      *                                           
      Ĵ
        3 MB                      NA                             
      Ĵ
        4 MB      *    PCSM 1275                      Note A  
      Ĵ
        5 MB                      NA                             
      Ĵ
        6 MB      *    PCSM 1275 PCSM 1275            Note B  
      Ĵ
        7 MB                      NA                             
      Ĵ
        8 MB      *    PCSM 1275 PCSM 1275 PCSM 1275  Note C  
      Ĵ
       9+ MB  Above Board MC (in an expansion slot)              
      ;

      Configuration Notes:
       *  Use the standard 2MB memory module supplied with the computer or
          PCSM 1275.
       A  An alternate would be to put an Above Board MC with 2MB into an
          expansion slot in addition to the 2MB memory module in socket 1.
       B  An alternate would be to put an Above Board MC with 4MB into an
          expansion slot in addition to the 2MB memory module in socket 1.
       C  An alternate would be to put an Above Board MC with 6MB into an
          expansion slot in addition to the 2MB memory module in socket 1.

   IBM PS/2 MODEL 70-A81, A16

      These PS/2 Model 70 computers come standard with two 2MB memory
      modules on the system board. These system boards have 4 available
      memory sockets, and are expandable to 8MB. These systems are further
      expandable using an Above Board MC.

      Intel Matched Memory Compatibility:
            Module     Intel Part     IBM Equivalent
             Size        Number         Part Number
             2MB  PCSM 1275          6450608
                  Above Board MC
                  PSMB 5300

      ͸
      System       Recommended Memory Upgrade Path      Alternate
      Memory ĴUpgrade  
      Desired Socket 1  Socket 2  Socket 3  Socket 4 Path?    
      Ĵ
        4 MB      *         *                                 
      Ĵ
        5 MB                      NA                             
      Ĵ
        6 MB      *         *    PCSM 1275            Note A  
      Ĵ    
        7 MB                      NA                             
      Ĵ
        8 MB      *         *    PCSM 1275 PCSM 1275  Note B  
      Ĵ
       9+ MB  Above Board MC (in an expansion slot)              
      ;

      Configuration Notes:
       *  Use the standard 2MB memory module supplied with the computer or
          PCSM 1275.
       A  An alternate would be to put an Above Board MC with 4MB into an
          expansion slot in addition to the 2MB memory modules in sockets 1
          and 2.
       B  An alternate would be to put an Above Board MC with 6MB into an
          expansion slot in addition to the 2MB memory modules in sockets 1
          and 2.

   IBM PS/2 MODEL P70-031

      This PS/2 Model P70 computer comes standard with one 2MB memory
      module on the system board. These system boards have 4 available
      memory sockets, and are expandable to 8MB. These systems are further
      expandable using an Above Board MC.

      Intel Matched Memory Compatibility:
            Module     Intel Part     IBM Equivalent
             Size        Number         Part Number
             2MB  PCSM 1270          6450604
                  Above Board MC
                  PSMB 5300

      ͸
      System       Recommended Memory Upgrade Path      Alternate
      Memory ĴUpgrade  
      Desired Socket 1  Socket 2  Socket 3  Socket 4 Path?    
      Ĵ         
        2 MB      *                                           
      Ĵ
        3 MB                      NA                             
      Ĵ
        4 MB      *    PCSM 1270                      Note A  
      Ĵ
        5 MB                      NA                             
      Ĵ
        6 MB      *    PCSM 1270 PCSM 1270            Note B  
      Ĵ
        7 MB                      NA                             
      Ĵ
        8 MB      *    PCSM 1270 PCSM 1270 PCSM 1270  Note C  
      Ĵ
       9+ MB  Above Board MC (in an expansion slot)              
      ;

      Configuration Notes:
       *  Use the standard 2MB memory module supplied with the computer or
          PCSM 1270.
       A  An alternate would be to put an Above Board MC with 2MB into an
          expansion slot in addition to the 2MB memory module in socket 1.
       B  An alternate would be to put an Above Board MC with 4MB into an
          expansion slot in addition to the 2MB memory module in socket 1.
       C  An alternate would be to put an Above Board MC with 6MB into an
          expansion slot in addition to the 2MB memory module in socket 1.

   IBM PS/2 MODEL P70-061, 121

      These PS/2 Model P70 computers come standard with two 2MB memory
      modules on the system board. These system boards have 4 available
      memory sockets, and are expandable to 8MB. These systems are further
      expandable using an Above Board MC.

      Intel Matched Memory Compatibility:
            Module     Intel Part     IBM Equivalent
             Size        Number         Part Number
             2MB  PCSM 1270          6450604
                  Above Board MC
                  PSMB 5300

      ͸
      System       Recommended Memory Upgrade Path      Alternate
      Memory ĴUpgrade  
      Desired Socket 1  Socket 2  Socket 3  Socket 4 Path?    
      Ĵ
        4 MB      *         *                                 
      Ĵ
        5 MB                      NA                             
      Ĵ
        6 MB      *         *    PCSM 1270            Note A  
      Ĵ    
        7 MB                      NA                             
      Ĵ
        8 MB      *         *    PCSM 1270 PCSM 1270  Note B  
      Ĵ
       9+ MB  Above Board MC (in an expansion slot)              
      ;

      Configuration Notes:
       *  Use the standard 2MB memory module supplied with the computer or
          PCSM 1270.
       A  An alternate would be to put an Above Board MC with 4MB into an
          expansion slot in addition to the 2MB memory modules in sockets 1
          and 2.
       B  An alternate would be to put an Above Board MC with 6MB into an
          expansion slot in addition to the 2MB memory modules in sockets 1
          and 2.



End of file                 Intel FaxBack # 1834          September 25,1992
