random bsod on win 7 64 bits

Hi everyone,

I hope you can help me with a problem that I have with my machine. the specs of my system are:

intel core i5
8 gb ram
windows ultimate 7 64 bits

My problem is that my computer sometimes gives me a bsod at random times, the first bsod that I received was a system service exception, then a memory management... I have been trying updating all the drivers and also the bios to the latest but without success :(
Also, I have been trying to see if maybe it's a timing ram problem, but I'm using the recommended by the memory manufacturer

Any help will be appreciated :)

ram timing.png View attachment bsod.rar

Captain Jack

Extraordinary Member
Hello and Welcome !

Do you Overclock if so please get into your BIOS and reset everything to default settings or use this guide How to Reset Your BIOS - wikiHow

Run a Hardware Diagnostic (Memory and Hard Drive) follow this link for instructions Hardware Diagnostic !! « Captain Debugger

An exception happened while executing a system service routine.
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff800030464ba, Address of the exception record for the exception that caused the bugcheck
Arg3: fffff880022f7d80, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

Debugging Details:

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

fffff800`030464ba 498b06          mov     rax,qword ptr [r14]

CONTEXT:  fffff880022f7d80 -- (.cxr 0xfffff880022f7d80)
rax=0000000000000000 rbx=fffff900c0875230 rcx=0000000000000000
rdx=fffff900c0875110 rsi=fffff900c0800000 rdi=fffff900c0875110
rip=fffff800030464ba rsp=fffff880022f8750 rbp=fffff900c0875110
 r8=fffff900c0875240  r9=0000000000000040 r10=0000000000000000
r11=fffff880022f8a30 r12=000000007efdb000 r13=0000000000000040
r14=180000130001000a r15=fffff880022f8830
iopl=0         nv up ei pl zr na po nc
cs=0010  ss=0018  ds=002b  es=002b  fs=0053  gs=002b             efl=00010246
fffff800`030464ba 498b06          mov     rax,qword ptr [r14] ds:002b:18000013`0001000a=????????????????
Resetting default scope




PROCESS_NAME:  chrome.exe


LAST_CONTROL_TRANSFER:  from 0000000000000000 to fffff800030464ba

fffff880`022f8750 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!RtlpCoalesceFreeBlocks+0xae

fffff800`030464ba 498b06          mov     rax,qword ptr [r14]


SYMBOL_NAME:  nt!RtlpCoalesceFreeBlocks+ae

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  ntkrnlmp.exe


STACK_COMMAND:  .cxr 0xfffff880022f7d80 ; kb

FAILURE_BUCKET_ID:  X64_0x3B_nt!RtlpCoalesceFreeBlocks+ae

BUCKET_ID:  X64_0x3B_nt!RtlpCoalesceFreeBlocks+ae

Followup: MachineOwner
Hope this helps,

Hi I run the diagostic test for the hard drive and for the memory with the memtest86...

for the hard drive there was a fix, I don't remember which file... for the memory, the memtest86 was ok, I run for 1.30 hours...

But I would like to know which it's the cause of the problem, I thought that the cause it's the memory, I see the debug message that you attached but I don't understand what does it mean?

Thanks for the help...

Completely replace the entire RAM in the machine, enjoy.

Hi TorrentG,

Thanks for the quick reply...

Well, the machine is brand new so it had warranty... but I would like to know what is the cause? bad memory? incompatibility? Sorry for insist, but I'm new in this subject...

Yep, you're welcome.

No, sorry, I'm not here to do research for you.

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