WHEA_UNCORRECTABLE_ERROR BSOD - o que está errado?

Olá. Estou com um problema no meu PC, recebendo o bsod WHEA_UNCORRECTABLE_ERROR. É alguns meses de idade pc. Não estou fazendo overclock nem alterando nada na bios, mas às vezes (esta é a minha terceira vez) recebo esse bsod do nada. Esta última vez, eu estava apenas assistindo algum stream se contorcer quando o PC caiu de repente.

Eu tenho tudo atualizado no Windows Update e todos os outros drivers também. Tudo no Open hardware Monitor parece ok. No momento, 10 minutos após o acidente, a temperatura da CPU está em 38 ° C, os fãs estão em 1400RPM

Estou usando o Windows 8.1 Pro 64b. Aqui estão as minhas especificações:

CPU Intel i5-4570 a 3.20GHz, Kingston HyperX 8GB DDR3 1600 XMP, GeForce GTX 660 com drivers 340.52, fonte de alimentação Corsair VS450, Gigabyte GA-H87-HD3

você pode ver o dump do BSOD aqui: https://www.dropbox.com/s/88i1q2nnqnpzux1/082514-29656-01.dmp?dl=0

Alguém pode me dizer o que está errado?

Você tem um erro de cache L2 ( GCACHEL2_ERR_ERR):

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

WHEA_UNCORRECTABLE_ERROR (124)
A fatal hardware error has occurred. Parameter 1 identifies the type of error
source that reported the error. Parameter 2 holds the address of the
WHEA_ERROR_RECORD structure that describes the error conditon.
Arguments:
Arg1: 0000000000000000, Machine Check Exception
Arg2: ffffe001c0287028, Address of the WHEA_ERROR_RECORD structure.
Arg3: 00000000be000000, High order 32-bits of the MCi_STATUS value.
Arg4: 000000000100110a, Low order 32-bits of the MCi_STATUS value.

Debugging Details:
------------------


BUGCHECK_STR:  0x124_GenuineIntel

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN8_DRIVER_FAULT

PROCESS_NAME:  chrome.exe

STACK_TEXT:  
nt!KeBugCheckEx
hal!HalBugCheckSystem
nt!WheaReportHwError
hal!HalpMcaReportError
hal!HalpMceHandlerCore
hal!HalpMceHandler
hal!HalpMceHandlerWithRendezvous
hal!HalHandleMcheck
nt!KxMcheckAbort
nt!KiMcheckAbort
0x0


FAILURE_BUCKET_ID:  0x124_GenuineIntel_PROCESSOR_CACHE


===============================================================================
Common Platform Error Record @ ffffe001c0287028
-------------------------------------------------------------------------------
Record Id     : 01cfba1500bc1a0e
Severity      : Fatal (1)
Length        : 928
Creator       : Microsoft
Notify Type   : Machine Check Exception
Timestamp     : 8/25/2014 0:47:19 (UTC)
Flags         : 0x00000000

===============================================================================
Section 0     : Processor Generic
-------------------------------------------------------------------------------
Descriptor    @ ffffe001c02870a8
Section       @ ffffe001c0287180
Offset        : 344
Length        : 192
Flags         : 0x00000001 Primary
Severity      : Fatal

Proc. Type    : x86/x64
Instr. Set    : x64
Error Type    : Cache error
Operation     : Generic
Flags         : 0x00
Level         : 2
CPU Version   : 0x00000000000306c3
Processor ID  : 0x0000000000000004

===============================================================================
Section 1     : x86/x64 Processor Specific
-------------------------------------------------------------------------------
Descriptor    @ ffffe001c02870f0
Section       @ ffffe001c0287240
Offset        : 536
Length        : 128
Flags         : 0x00000000
Severity      : Fatal

Local APIC Id : 0x0000000000000004
CPU Id        : c3 06 03 00 00 08 10 04 - ff fb fa 7f ff fb eb bf
                00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
                00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00

Proc. Info 0  @ ffffe001c0287240

===============================================================================
Section 2     : x86/x64 MCA
-------------------------------------------------------------------------------
Descriptor    @ ffffe001c0287138
Section       @ ffffe001c02872c0
Offset        : 664
Length        : 264
Flags         : 0x00000000
Severity      : Fatal

Error         : GCACHEL2_ERR_ERR (Proc 2 Bank 5)
  Status      : 0xbe0000000100110a
  Address     : 0x0000000010d0a400
  Misc.       : 0x0000015086000086

2: kd> !sysinfo cpuinfo
[CPU Information]
~MHz = REG_DWORD 3193
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 60 Stepping 3
ProcessorNameString = REG_SZ Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
Update Status = REG_DWORD 6
VendorIdentifier = REG_SZ GenuineIntel
MSR8B = REG_QWORD 900000000
2: kd> !sysinfo cpuspeed
CPUID:        "Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz"
MaxSpeed:     3200
CurrentSpeed: 3193
2: kd> !sysinfo machineid
Machine ID Information [From Smbios 2.7, DMIVersion 39, Size=3050]
BiosMajorRelease = 4
BiosMinorRelease = 6
BiosVendor = American Megatrends Inc.
BiosVersion = F3
BiosReleaseDate = 05/09/2013
SystemManufacturer = Gigabyte Technology Co., Ltd.
SystemProductName = H87-HD3
SystemFamily = To be filled by O.E.M.
SystemVersion = To be filled by O.E.M.
SystemSKU = To be filled by O.E.M.
BaseBoardManufacturer = Gigabyte Technology Co., Ltd.
BaseBoardProduct = H87-HD3
BaseBoardVersion = x.x

O BIOS / UEFI é um pouco antigo. O i5 4xxx é suportado apenas desde a versão F8 :

Suporte aos novos processadores Intel Core de quarta geração

Tente atualizar o BIOS / UEFI e verifique se isso corrige.