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Windows 7: BSOD Usually code 1a

26 Sep 2011   #1

Windows 7 Ultimate x64
BSOD Usually code 1a

Blue screens about every 20 minutes or so, about 50 crash dumps attached. thanks for any help you can provide.

Windows 7 Ultimate
AMD athlon II 645 processor
ASRock K10N78D Mobo
Nvidia 720D chipset
Geforce GTX 260
8 gigs ram
430W PS
2TB Raid 0
VIA high definition audio

My System SpecsSystem Spec
26 Sep 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 x64

Most the dumps actually point to memory corruption. Enough so that I'm going to go ahead and say you have bad timings/overclock or a bad ram stick.
Running memtest86 overnight is usually the best test for this, and it takes windows and other processes out of the mix.

There's a detailed tutorial with screens and instructions for it's use here.
RAM - Test with Memtest86+

Probably caused by : memory_corruption ( nt!MiAgeWorkingSet+425 )

Followup: MachineOwner

2: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Invalid system memory was referenced.  This cannot be protected by try-except,
it must be protected by a Probe.  Typically the address is just plain bad or it
is pointing at freed memory.
Arg1: fffffa80cdf8901b, memory referenced.
Arg2: 0000000000000000, value 0 = read operation, 1 = write operation.
Arg3: fffff80002a7b4cf, If non-zero, the instruction address which referenced the bad memory
Arg4: 0000000000000005, (reserved)

Debugging Details:

Could not read faulting driver name

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80002cc3100

fffff800`02a7b4cf 410fb65e1b      movzx   ebx,byte ptr [r14+1Bh]







TRAP_FRAME:  fffff880037167c0 -- (.trap 0xfffff880037167c0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000058000000000 rbx=0000000000000000 rcx=fffff6fcc0197230
rdx=0000000000000001 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002a7b4cf rsp=fffff88003716950 rbp=007ffffcc0197233
 r8=0000000000000001  r9=fffff80002cc6ac0 r10=0000000000000005
r11=0000000000000000 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl zr na po nc
fffff800`02a7b4cf 410fb65e1b      movzx   ebx,byte ptr [r14+1Bh] ds:77d8:00000000`0000001b=??
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002a3b3bf to fffff80002a90c40

fffff880`03716658 fffff800`02a3b3bf : 00000000`00000050 fffffa80`cdf8901b 00000000`00000000 fffff880`037167c0 : nt!KeBugCheckEx
fffff880`03716660 fffff800`02a8ed6e : 00000000`00000000 fffffa80`cdf8901b 00000000`00001000 f8a00044`a8300400 : nt! ?? ::FNODOBFM::`string'+0x44791
fffff880`037167c0 fffff800`02a7b4cf : 00000000`04d3b000 04100000`23ec3921 00000000`00000000 00000000`00012041 : nt!KiPageFault+0x16e
fffff880`03716950 fffff800`02b0cac5 : fffff800`02cc6ac0 fffff880`00000001 00000000`00000001 fffff880`03716bb0 : nt!MiAgeWorkingSet+0x425
fffff880`03716b00 fffff800`02a7b826 : 00000000`00000706 00000000`00000000 fffffa80`00000000 00000000`00000005 : nt! ?? ::FNODOBFM::`string'+0x4d786
fffff880`03716b80 fffff800`02a7bcd3 : 00000000`00000008 fffff880`03716c10 00000000`00000001 fffffa80`00000000 : nt!MmWorkingSetManager+0x6e
fffff880`03716bd0 fffff800`02d2bfee : fffffa80`06a47200 00000000`00000080 fffffa80`069a5b30 00000000`00000001 : nt!KeBalanceSetManager+0x1c3
fffff880`03716d40 fffff800`02a825e6 : fffff880`03364180 fffffa80`06a47200 fffff880`0336efc0 fef5bdff`bfffdbe7 : nt!PspSystemThreadStartup+0x5a
fffff880`03716d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxStartSystemThread+0x16


fffff800`02a7b4cf 410fb65e1b      movzx   ebx,byte ptr [r14+1Bh]


SYMBOL_NAME:  nt!MiAgeWorkingSet+425

FOLLOWUP_NAME:  MachineOwner



IMAGE_NAME:  memory_corruption

FAILURE_BUCKET_ID:  X64_0x50_nt!MiAgeWorkingSet+425

BUCKET_ID:  X64_0x50_nt!MiAgeWorkingSet+425

Followup: MachineOwner
My System SpecsSystem Spec
26 Sep 2011   #3

Windows 7 Ultimate x64

I have pulled RAM sticks out 1 by 1 as I get new BSOD. Have been running fine now for over an hour without a crash. Will leave it running overnight and will mark this solved tomorow. thank you Maguscreed for your time and assistance!
My System SpecsSystem Spec


 BSOD Usually code 1a

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