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Wilmiloard
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929-Fatal MCA Error detected CPU 1

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HP Z820
Microsoft Windows 10 (64-bit)

Good day

HP

 

I have one problem:

929-Fatal MCA Error detected CPU 1 - firmware error - (0+70)

 

 

I have the last Bios installed but the PC do not work well.

 

Greetings

Wilmiloard

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DGroves
Level 12
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from a PREVIOUS POST on this error that was answered by "DAN_WGBU"  (please try the SEARCH FUNCTION before posting)

 

https://h30434.www3.hp.com/t5/Desktops-Archive-Read-Only/929-Fatal-MCA-Error-detected-CPU-0/td-p/517...

 

This could either be a memory failure (try reseating it, moving it to a different slot, or removing or replacing the memory), or a possible CPU failure.  (The system is reporting a CPU machine check error, but it could be caused by memory issues). 

 

Go into Computer Management, then click on Event Viewer, Windows Logs, and System.  Are there any WHEA warnings listed under Source?  An easier way to find them is to Filter Current Log, and select Critical, Warning, Verbose, and Error to filter out the (many) Information entries.

 

If the memory is OK, reseating the CPU might help, but this can be tricky.  The CPU socket pins are very easily bent during the removal or install process, and extremely difficult or impossible to repair if damaged.  Also, when the CPU heatsink is removed, clean off the thermal paste on both the CPU and heatsink, and use new paste.  The paste hardens, and does not give good thermal conductivity if the heatsinks is removed and the paste is not replaced.  The CPU operating temperature can increase by 10 deg. C or more.  FYI.

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Wilmiloard
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Hello

I will do.

 

Have you speak German with me in the past?

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Wilmiloard
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- System

    - Provider
      [ Name] Microsoft-Windows-Kernel-Power       [ Guid] {331c3b3a-2005-44c2-ac5e-77220c37d6b4}
      EventID 41       Version 6       Level 1       Task 63       Opcode 0       Keywords 0x8000400000000002     - TimeCreated
      [ SystemTime] 2020-01-31T17:15:12.698237500Z
      EventRecordID 49973       Correlation     - Execution
      [ ProcessID] 4       [ ThreadID] 8
      Channel System       Computer DESKTOP-8BGSLSV     - Security
      [ UserID] S-1-5-18

- EventData

    BugcheckCode 0     BugcheckParameter1 0x0     BugcheckParameter2 0x0     BugcheckParameter3 0x0     BugcheckParameter4 0x0     SleepInProgress 0     PowerButtonTimestamp 0     BootAppStatus 0     Checkpoint 41     ConnectedStandbyInProgress false     SystemSleepTransitionsToOn 2     CsEntryScenarioInstanceId 0     BugcheckInfoFromEFI false     CheckpointStatus 0
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