Windows 8 and 8.1 Forums

BSOD WHEA Uncorrectable Error

  1. #1

    Posts : 1
    Windows 8.1

    BSOD WHEA Uncorrectable Error

    I have got BSOD WHEA Uncorrectable Error 6 times in the last two months. It crashes and restarts the PC.

    I only have this issue when machine is under load and I'm gaming.

    I have tried updating all the drivers (all good), chkdsk (all good), and mdsched (all good)

      My System SpecsSystem Spec

  2. #2

    Posts : 651
    Windows 8.1 x64

    // The error that triggered the bugcheck - an L2 cache failure:
    Proc. Info 0  @ ffffe00057bd2240
    Section 2     : x86/x64 MCA
    Descriptor    @ ffffe00057bd2138
    Section       @ ffffe00057bd22c0
    Offset        : 664
    Length        : 264
    Flags         : 0x00000000
    Severity      : Fatal
    Error         : ICACHEL2_IRD_ERR (Proc 0 Bank 8)
      Status      : 0xbe20000000011152
      Address     : 0x00000002168c1f80
      Misc.       : 0x000000702001c086
    // System looks to be an older homebrew machine with an Asus board with a Z77 chipset:
    Machine ID Information [From Smbios 2.7, DMIVersion 39, Size=3951]
    BiosMajorRelease = 4
    BiosMinorRelease = 6
    BiosVendor = American Megatrends Inc.
    BiosVersion = 0908
    BiosReleaseDate = 11/16/2012
    SystemManufacturer = System manufacturer
    SystemProductName = System Product Name
    SystemFamily = To be filled by O.E.M.
    SystemVersion = System Version
    SystemSKU = SKU
    BaseBoardManufacturer = ASUSTeK COMPUTER INC.
    BaseBoardProduct = P8Z77-V LK
    BaseBoardVersion = Rev X.0x
    // Has an older i5 in it from Q3 of 2012, matches the age of the machine:
    CPUID:        "Intel(R) Core(TM) i5-3350P CPU @ 3.10GHz"
    MaxSpeed:     3100
    CurrentSpeed: 3109
    // Doesn't appear to be overclocked:
    [CPU Information]
    ~MHz = REG_DWORD 3109
    Component Information = REG_BINARY 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    Configuration Data = REG_FULL_RESOURCE_DESCRIPTOR ff,ff,ff,ff,ff,ff,ff,ff,0,0,0,0,0,0,0,0
    Identifier = REG_SZ Intel64 Family 6 Model 58 Stepping 9
    ProcessorNameString = REG_SZ Intel(R) Core(TM) i5-3350P CPU @ 3.10GHz
    Update Status = REG_DWORD 0
    VendorIdentifier = REG_SZ GenuineIntel
    MSR8B = REG_QWORD 1b00000000
    // Has an 8GB kit of Corsair Vengeance RAM in it:
    [Memory Device (Type 17) - Length 34 - Handle 0060h]
      Physical Memory Array Handle  0061h
      Memory Error Info Handle      0065h
      Total Width                   64 bits
      Data Width                    64 bits
      Size                          4096MB
      Form Factor                   09h - DIMM
      Device Set                    [None]
      Device Locator                ChannelA-DIMM0
      Bank Locator                  BANK 0
      Memory Type                   18h - Specification Reserved
      Type Detail                   0080h - Synchronous
      Speed                         1333MHz
      Manufacturer                  029E
      Serial Number                         
      Asset Tag Number                        
      Part Number                   CMZ8GX3M2A1600C9
    Not sure if that RAM is compatible, but the Asus site doesn't list that particular Corsair part as technically tested to be compatible with that motherboard (there are a number of 1600, 1800, and 2133MHz parts on the list, but not this particular set). If you've tested the RAM to be stable already, then it's an L2 cache issue with one of the CPU cores, and the CPU is at fault and should be replaced - the MTBF is rated for 75,000 hours at 40C for most pre-Haswell i-series parts, but regularly living above that can cause a *significant* reduction in expected lifetime, even a few degrees can shave thousands of hours off of that per year - for example, a part with 75,000 MTBF hours at 40C would be expected to have less than 8,000 hours if spending large amounts of time at 70C.
      My System SpecsSystem Spec

BSOD WHEA Uncorrectable Error

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