Serious RAM defects and BSOD

ayushsanyal · 20 Dec 2010

Hi everyone,
My laps been crashing quite often in the past few months. However, this only happens when I was playing demanding games(NFS hot pursuit,COD black ops,e.t.c). After the crash,there would be no dump files-so I thought it was a driver issue.

Nonetheless,I did a win memory diag and memtest -both crashed before they could finish.These did have dump files-which I have attached.

Could someone please help me out?

P.S-
My Laptop is about a year old and has original OS(Windows 7-home premium 64 bit),OEM .
I have reinstalled the OS 3 times(to factory settings)-the problem persists.

yowanvista · 20 Dec 2010

Please remove any CD virtualization programs such as Daemon Tools and Alcohol 120%. They use a driver, found in your dmp, sptd.sys, that is notorious for causing BSODs. Use this SPTD uninstaller when you're done: DuplexSecure - Downloads
You can use MagicDisc as an alternative.

Code:

sptd.sys        fffff880`010d3000    fffff880`011f9000    0x00126000    0x4ad24632    12-Oct-09 12:55:14 AM

Jonathan_King · 20 Dec 2010

Hello,

In addition to Yowan's advice to remove SPTD, I believe some hardware tests are in order.

Neither Memtest86 nor the Windows Memory Diagnostic should crash, unless hardware is at fault.

Try testing your computer's temperatures, using Speedfan. Could you post the results?

I have to suspect either the RAM or motherboard is at fault, though. I'm guessing you have two 2GB sticks of RAM installed, for a total of 4GB. Try removing one of them, and running Memtest86 on the other.

RAM - Test with Memtest86+

Warning

That may void your warranty, if you have one. Only do that if your computer is not under warranty.

...Summary of the dumps:

Code:


Built by: 7600.16617.amd64fre.win7_gdr.100618-1621
Debug session time: Mon Dec 20 09:33:43.421 2010 (UTC - 5:00)
System Uptime: 0 days 0:00:21.372
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Debug session time: Fri Dec 17 02:02:37.161 2010 (UTC - 5:00)
System Uptime: 0 days 19:57:28.111
*** WARNING: Unable to verify timestamp for win32k.sys
*** ERROR: Module load completed but symbols could not be loaded for win32k.sys
Probably caused by : memory_corruption
DEFAULT_BUCKET_ID:  CODE_CORRUPTION
BUGCHECK_STR:  0x9F
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_MEMORY_CORRUPTION_ONE_BIT_LARGE
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``

ayushsanyal · 20 Dec 2010

Hi @Jonathan_King,
I did the speedfan test. The results are as follows-
1. HD0:36C
2. Temp1:44C
3. Temp2:44C
4. Core 0:42C
5. Core 1:42C

I don't think daemon tools is the reason because as you pointed out-the memory tests shouldn't have crashed. However,I've uninstalled them in any case.:)

Jonathan_King · 20 Dec 2010

The temperatures look fine; I doubt they are causing the problem.

Carry on with the latter half of my post; see if you can't isolate and diagnose that probable RAM problem.

ayushsanyal · 20 Dec 2010

btw-I was just playing COD Black ops and checked the temp-Core temp went upto 79C.
Is that normal?

Jonathan_King · 20 Dec 2010

It's very normal for overheating computers!

Try cleaning out the dust from your CPU fan, heat sink, and motherboard, using a can of compressed air. Don't use a normal vacuum cleaner, though, as you can damage the chips with ESD. Special low-power vacs exist, but if you don't already have one, a can of compressed air is cheaper.

ayushsanyal · 20 Dec 2010

Ok,I think I have a long night ahead of me!
But anyway,thanks a lot for your help! :)

Jonathan_King · 20 Dec 2010

You're welcome mate; let us know if you need help with this or anything else.