H132895 - Trap 000E & L2 Cache Errors After IntelDX4 Upgrade                 
                                                                                
                                                                                
 SYMPTOM:                                                                       
 IBM PS/2 9576/77 i/s models that have been upgraded with an                    
 IntelDX4 486 100Mhz Processor Upgrade or an IntelDX4 OverDrive                 
 Processor Upgrade (DX4ODPR100) may exhibit the following error                 
 symptoms:                                                                      
          - Intermittent Trap 000E Errors under OS/2                            
          - L2 Cache diagnostics errors                                         
            Message states "L2 Cache installed not supported."                  
                                                                                
 PROBLEM ISOLATION AIDS:                                                        
 A standard IntelDX4 486 Processor Upgrade requires a separate                  
 voltage regulator to step down 5v DC to 3.3v DC.  The Intel                    
 OverDrive Processor has a built-in voltage regulator.                          
                                                                                
 FIX:                                                                           
 If the system is experiencing intermittent Trap 000E errors,                   
 remove the IntelDX4 Upgrade or OverDrive Processor and                         
 re-install the original processor.  If errors persist, this tip                
 does not apply.  If the errors do not reoccur, replace the                     
 IntelDX4 Processor Upgrade or IntelDX4 OverDrive Processor.                    
                                                                                
 IBM does not market the IntelDX4 OverDrive processor upgrades.                 
 The customer should contact their point of purchase or Intel                   
 for additional assistance.                                                     
                                                                                
 Replacements for the IBM upgrade Option (Standard IntelDX4                     
 Processor Upgrade requiring a voltage regulator) are available                 
 through normal IBM parts distribution processes using the FRU                  
 numbers published in the HMM.                                                  
                                                                                
 For systems experiencing L2 Cache failures during diagnostics,                 
 obtain the current level PS/2 9576/77 Reference Diskette.                      
 Earlier versions of the Reference Diskette did not contain the                 
 code necessary to identify the ID of the IntelDX4 Processor                    
 Upgrade or the IntelDX4 OverDrive Processor upgrade.                           
                                                                                
 The updated 9576/77 Reference Diskette titled "7677DIAG.DSK"                   
 may be downloaded from the IBM PC Company Bulletin Board                       
 service at 919-517-0001.  The file is located in section 27                    
 under "Reference and Adapter Diskettes."                                       
                                                                                
 The PS/2 9576/77 Reference Diskette may also be downloaded via                 
 the Internet from the IBM Personal Computer File Library by                    
 searching the following Internet URL:                                          
             http://www.pc.ibm.com/files.html                                   
                                                                                
                                                                                
 OverDrive and IntelDX4 are trademarks of the Intel Corporation.