 ͻ
                                                                          
     Micro Channel Above Board Memory Modules Compatibility List          
                                                                          
 ͼ

 SIMMS FOR THE ABOVE BOARD 2

     The following table lists the SIMMS that Intel has verified are
     compatible with the Above Board 2.  The table lists both the part
     number on the module ("bottom side" of the module) and the part number
     on the DRAMs ("topside" of the module).

     The Above Board 2 can only use 256k SIMMs.
     Ŀ
         Manufacturer      Module Part Number  DRAM Part Number 
                            ("Bottom side")     ("Topside")     
     ͵
      Fujitsu                MB85227-xx          81256-xx       
                             MB85240-xx          81C258-xx      
     Ĵ
      Hitachi                HB561409B-xx        HM50256CP-xx   
     Ĵ
      Intel                  SM21259             N21256-xx      
     Ĵ
      Micron Technologies    MT9259M-xx          MT1259EJ-xx    
     Ĵ
      Mitsubishi             MH25609J-xx         M5M4256AJ-xx   
     Ĵ
      NEC                    MC-41256A9B-xx      41256-xx       
     Ĵ
      OKI                    MSC2304-xxYS9       M41256-xx      
     Ĵ
      Samsung                KMMS9256-xx         KM41256-xx     
     Ĵ
      Texas Instruments      TM4256GU9-xx        TMS4256FML     
                             TM4256EU9-xx        TMS4256FML     
     

     "xx" = chip speed rating.  "15" = 150ns, "12" = 120ns, "10 = 100ns,
     etc...

     NOTE:   IBM SIMMs are not compatible with Above Boards.

 SIMMS FOR THE ABOVE BOARD 2 PLUS

     The following table lists the SIMMS that Intel has verified are
     compatible with the Above Board 2 Plus.  You can't use these SIMMs on
     the Above Board 2.  The table lists both the part number on the module
     ("bottom side" of the module) and the part number on the DRAMs
     ("topside" of the module).

     You can't mix 256K-byte modules with the 1M-byte modules on the same
     Above Board 2 Plus.  You must use at least 100ns RAM for the Fast Ram
     feature.
     Ŀ
     SIMM     Manufacturer      Module Part Number  DRAM Part Number 
     Size                        ("Bottom side")     ("Topside")     
     ͵
           Fujitsu                MB85227-xx          81256-xx       
                                  MB85240-xx          81C258-xx      
          Ĵ
      256K Hitachi                HB561409B-xx        HM50256CP-xx   
          Ĵ
           Intel                  SM21259             N21256-xx      
          Ĵ
           Micron Technologies    MT9259M-xx          MT1259EJ-xx    
          Ĵ
           Mitsubishi             MH25609J-xx         M5M4256AJ-xx   
          Ĵ
           NEC                    MC-41256A9B-xx      41256-xx       
          Ĵ
           OKI                    MSC2304-xxYS9       M41256-xx      
          Ĵ
           Samsung                KMMS9256-xx         KM41256-xx     
          Ĵ
           Texas Instruments      TM4256GU9-xx        TMS4256FML     
                                  TM4256EU9-xx        TMS4256FML     
     Ĵ
           Fujitsu                MB85235-xx          MB81C1000-xx   
          Ĵ
      1MB  Hitachi                HB56A19B-xxS        HM511000JP-xx  
          Ĵ
           Micron Technologies    MT8C9024M-xx        MT4C1024-xx    
          Ĵ
           Mitsubishi             MH1M09J-xx          M5M41000AJ-xx  
          Ĵ
           NEC                    MC-421000A9B-xx     421000-xx      
          Ĵ
           NMB                    MM1M00J9            AAA1M100J-xx   
                                  GED100S9P09S        AAA1M100J-xx   
          Ĵ
           Samsung                KMM591000-xx        KMM41C1000J-xx 
          Ĵ
           Texas Instruments      TX024EAD9-xx        TMS4C1024-xx   
          Ĵ
           Toshiba                THM91000S-xx        TC511000AJ-xx  
                                  THM91000AS-xx       TC511000AJ-xx  

     

     "xx" = chip speed rating.  "15" = 150ns, "12" = 120ns, "10 = 100ns,
     etc...

     NOTE:   IBM SIMMs are incompatible with Above Boards.

     Tech Note: There are 2 types of 1Meg SIMMs currently on the market. The
     SIMMs listed here contain 9 memory chips per SIMM Module. SIMMs that
     were built using 4Meg technology (these contain only 3 memory chips per
     SIMM Module) have a completely different timing structure and are not
     compatible with the Above Board 2 Plus.

 SIMMS FOR ABOVE BOARD MC32

     The following table lists the SIMMS that Intel has verified are
     compatible with the Above Board MC32.  The table lists both the part
     number on the module ("bottom side" of the module) and the part number
     on the DRAMs ("topside" of the module).

     You can't mix 256K-byte modules with the 1M-byte modules on the same
     Above Board MC32.  You must use at least 100ns RAM.

     Ŀ
       Size    Manufacturer  Module Part Number DRAM Part Number
                               ("Bottom side")     ("Topside")  
     ͵
               Micron Tech.     MT9259M-xx        MT1259EJ-xx   
             Ĵ
       256K    Mitsubishi       MH25609J-xx       M5M4256AJ-xx  
             Ĵ
               NEC              MC-41256A9B-xx    41256-xx      
     ͵
               Micron Tech.     MT8C9024M-xx      MT4C1024-xx   
             Ĵ
               Mitsubishi       MH1M09J-xx        M5M41000AJ-xx 
             Ĵ
               NMB              MM1M00J9          AAA1M100J-xx  
       1M    Ĵ
               NMB              GED100S9P09S      AAA1M100J-xx  
             Ĵ
               NEC              MC-421000A9B-xx   421000-xx     
             Ĵ
               Toshiba          THM91000S-xx      TC511000AJ-xx 
             Ĵ
               Toshiba          THM91000AS-xx     TC511000AJ-xx 
     

     NOTE:   IBM SIMMs are incompatible with Above Boards.

 SIMMS FOR THE ABOVE BOARD MC

     The following table lists the SIMMS that Intel has verified are
     compatible with the Above Board MC.  The table lists both the part
     number on the module ("bottom side" of the module) and the part number
     on the DRAMs ("topside" of the module).

     You cannot mix different-sized modules (256k, 1M, 4M) on the same Above
     Board MC.  You must use at least 100ns RAM.  Using 85ns or faster, you
     can run the Above Board MC at 0 wait states for optimum performance.

     Ŀ
       Size    Manufacturer  Module Part Number DRAM Part Number
                               ("Bottom side")     ("Topside")  
     ͵
               Micron Tech.     MT9259M-xx        MT1259EJ-xx   
             Ĵ
       256K    Mitsubishi       MH25609J-xx       M5M4256AJ-xx  
             Ĵ
               NEC              MC-41256A9B-xx    UPD41256-xx   
             Ĵ
               Fujitsu          MB85227-xx                      
                                MB85240-xx                      
             Ĵ
               NMB              NM2800J9-xx       AAA2800J-xx   
             Ĵ
               Oki              MSC2304YS9-xx     MSM41256AJS-xx
                                MSC2331A-xx       MSM51256AJS-xx
             Ĵ
               Samsung          KMM59256-xx       KM41256-xx    
             Ĵ
               Texas Instr.     TM4256GU9-xx      TMS4256FML-xx 
             Ĵ
               Hitachi          HB561409B-xx      HM51256CP     
     ͵
               Micron Tech.     MT8C9024M-xx      MT4C1024-xx   
             Ĵ
               Mitsubishi       MH1M09AOJ-xx      M5M41000AJ-xx 
                                MH1M09AOJ-xx      M5M41000BJ-xx 
             Ĵ
               NMB              MM1M00J9          AAA1M100J-xx  
       1M    Ĵ
               NEC              MC-421000A9B-xx   UPD421000LA-xx
             Ĵ
               Oki *            MSC2312A-xxYS9   MSM511000AJS-xx
             Ĵ
               Panasonic        MN4A091MOS-xx    MN41C1000SJ-xx 
             Ĵ
               Samsung          KMM591000-xx      KM41C1000J-xx 
             Ĵ
               Siemens          HYM91000S-xx      HYB511000AJ-xx
             Ĵ
               Texas Instr.     TX024EAD9-xx     TMS4C1024DJ-xx 
             Ĵ

               Toshiba          THM91000S-xx      TC511000J-xx  
                                THM91000AS-xx     TC511000AJ-xx 
                                THM91000AS-xx     TC51000AJ-xx  
     ͵
               NEC             MC-424100A9B-xx   UPD424100LA-xx 
             Ĵ
               Panasonic        MN4A094MOS-xx    MN41C4000SJ-xx 
             Ĵ
       4 M     Samsung          KMM594000-xx      KM41C4000J-xx 
             Ĵ
               Siemens          HYM94000S-xx      HYB514100-xx  
             Ĵ
               Toshiba          THM94000S-xx      TC51400J-xx   
     

     * We have seen some Oki SIMMs that are a millimeter shorter than the
     SIMM sockets on the Above Board MC.  If you are experiencing problems
     with these SIMMs, verify they are seated correctly.  If they appear too
     small to fit snugly, replace with new SIMMs.

     NOTE:   IBM SIMMs are incompatible with Above Boards.



End of file                 Intel FaxBack # 1510          August 27,1992
