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Windows 7: Win7 x64 - Plethora of BSODs - At my wit's end

07 Nov 2009   #11
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by sahib View Post
Quote   Quote: Originally Posted by H2SO4 View Post
At present, the installation is NOT "vanilla", if only because of a few drivers such as this inexplicable one which is apparently something do to with a music jukebox app:

Image path: \SystemRoot\System32\Drivers\PxHlpa64.sys
That is correct - it is not vanilla right now, because this computer was intended to be used for work, rather than to keep me busy for weeks, trying to fix all kinds of issues.
I completely understand your position. However, since the machine was not "vanilla" at the time it generated that dump, it is technically impossible to be totally sure whether the pool corruption which led to the crash was caused by one of the 3rd-party drivers.

Quote   Quote: Originally Posted by sahib View Post
(btw, I have no clue regarding the origin of the mentioned file... it appears to belong to a certain "MusicMatch Jukebox" program, although I'm absolutely positive that I did not install any such application).
That is worrying. While searching online for indications as to what that driver may be, I found a few references to malware masquerading under a driver name associated with an innocuous product. Then again, you tend to find such references for absolutely every driver name, but if you've never installed "MusicMatch Jukebox" obviously the situation is suspicious.

Quote   Quote: Originally Posted by sahib View Post
Nevertheless, I am planning to do another win7 x64 reinstall first thing tomorrow morning, keeping it vanilla and starting the driver verifier right after completing the install.
Excellent idea. If you keep it 100% vanilla for a while and you still get bizarre crashes, that is the strongest proof you may have that something is very wrong with the hardware.

Quote   Quote: Originally Posted by sahib View Post
Even though the current situation strongly suggests faulty memory modules, I'm wondering if you can think of any way to proove this in order to facilitate the RMA?
I'm afraid minidumps don't "prove" anything much at all. They're a very sparse summary of the software situation at the time of a crash, and they never constitute "proof absolute" of the sort which is guaranteed to convince your average hardware salesperson that their product is defective.

It may not be your RAM either. The act of getting content to and from RAM is complex and intricate - it involves the software, processor, motherboard, RAM... plus every single non-essential hardware add-on has the potential to interfere through current and inductance/capacitance transients. It's statistically probable that the RAM is bad, but since the memory diagnostics don't pick up a consistently-located defect it's possible that the problem is elsewhere.

==================================

Suggestion: keep it 100% vanilla long enough to verify whether you still get weird 'n' wonderful crashes in the absence of all 3rd-party drivers, including the suspicious "jukebox" one. At that point, RMA the motherboard, processor, and RAM on the basis of "frequent crashing under a 100% vanilla install", rather than trying to "justify" the existence of a specific defect. That's "their problem" to work out - you just want hardware which functions.


My System SpecsSystem Spec
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08 Nov 2009   #12
sahib

 
 

Quote   Quote: Originally Posted by H2SO4 View Post
Quote   Quote: Originally Posted by sahib View Post
Nevertheless, I am planning to do another win7 x64 reinstall first thing tomorrow morning, keeping it vanilla and starting the driver verifier right after completing the install.
Excellent idea. If you keep it 100% vanilla for a while and you still get bizarre crashes, that is the strongest proof you may have that something is very wrong with the hardware.

Update:

removed 2nd and 3rd HDD, keeping only the system HDD (WD Caviar Black 1TB)
removed one of two DIMMs, keeping only 2 GB in bank 0
disconnected extra USB hubs (in case and monitor)
installed win7 x64 and turned on driver verifier
disabled windows update and skipped all other driver installations

Status:

Until now, I have not seen another BSOD
OS and apps have been stable, no crashes or hangs
I will monitor the situation for another couple of hours
then I will create a system restore point and begin installing selected applications
My System SpecsSystem Spec
08 Nov 2009   #13
sahib

 
 

Update:

after running stable for several hours, I decided to swap the memory modules (I had removed one before beginning the current installation), in order to see if that would affect the system's stability in any way.

long story short - the system refused to boot, instead it BSOD'd even before reaching the login UI. I ran another test with MemTest86+, which showed over 1000 errors within the first 5 minutes.
NB: I ran that test before - more than once - for over 12 hours, without seeing a single error!

After re-inserting the 'healthy' module, the system booted normally - no BSOD, no crashes, no hangs.

So - unless something unexpected happens, I will RMA the memory, and we can regard this thread as closed (and -hopefully- live happily ever after )

my special thanks go to all users who contributed to this thread, first and foremost the honourable H2SO4 !



</closed>
My System SpecsSystem Spec
.

08 Nov 2009   #14
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by sahib View Post
Update:

after running stable for several hours, I decided to swap the memory modules (I had removed one before beginning the current installation), in order to see if that would affect the system's stability in any way.

long story short - the system refused to boot, instead it BSOD'd even before reaching the login UI. I ran another test with MemTest86+, which showed over 1000 errors within the first 5 minutes.
NB: I ran that test before - more than once - for over 12 hours, without seeing a single error!

After re-inserting the 'healthy' module, the system booted normally - no BSOD, no crashes, no hangs.

So - unless something unexpected happens, I will RMA the memory, and we can regard this thread as closed (and -hopefully- live happily ever after )

my special thanks go to all users who contributed to this thread, first and foremost the honourable H2SO4 !



</closed>
You're quite the character mate, and I mean that in a very positive way. Most people would've torn their hair out and started scribbling on the walls (with their left foot) 14% into that particular troubleshooting experience, but you remained calm and methodical, thereby managing to diagnose your machine's problem. Good on ya, and welcome to SF
My System SpecsSystem Spec
08 Nov 2009   #15
torrentg

7600.20510 x86
 
 

Excellent to all in the thread!

This should be a case study to those that say they ran Memtest for an hour with no problems so their memory is fine.
My System SpecsSystem Spec
08 Nov 2009   #16
Fishdoc

Win 7 Ultimate 64bit Signature Edition
 
 

I follow all the discussions in this section just to learn something new. I too had a memory problem and ran test with both sticks not finding any errors, only after I ran one at a time did I discover there was a problem with the RAM.
My System SpecsSystem Spec
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 Win7 x64 - Plethora of BSODs - At my wit's end




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