Constant: page_fault_in_nonpaged_area error BSOD.

[? (=Þ)]

I am constantly getting this error when using simple windows applications and tasks (Internet explorer, windows explorer, regedit, setup programs for video drivers). It has only occured once while tryign to play Counterstrike or Half-Life. Occurs pretty frequently during shutdown sequence. I have read the MS libraries/articles on it, but they are pretty vague... it could be pretty much everything that is wrong =\ . It occurs fairly randomly it seems, so I cannot pinpoint any particular program/service/application causing it. I close all programs but IE/Windows explorer, but it still causes it occasionally. I usually only run with AIM, AIM+ and Motherboard monitor on.

I have run mushkin's memtest86, an hour and a half w/o an error... reapplied thermal paste incase mine dried off. CPU temps within range. It happens regardless of what speed I set the CPU/RAM (666mhz/66 memory, 900mhz/66mhz mem, 1200mhz/100 and 1200mhz/133mhz all tried). I have run a full windows scandisk but it reported no bad sectors (how do i view the chkdsk/scandisk log file in winXP?). I dont know what else to do short of doing a full reinstall (which i really dont want to do unless i have to).

How do i check video ram? is there any utility for it? anything else to check/fix?

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WinXP Pro
Celeron 900 @ 1200
Asus CUSL2
512mb kingston value ram.
Radeon 32MB DDR (original release one), using Omega drivers, 2nd latest release. I have tried the latest, no help.
DirectX9 didnt help (had 8/8.1 earlier)
Aureal Superquad sound
Maxtor D740X 80gig HD and old 13 gig HD.

-------edit--------
oh i and i have tried running w/ no windows swap file at all either, all ram. still errors.

hmmmm update... it seems to be consistantly crashing when I try to export my registry (full backup). okay.... i cannot seem to run any registry repair programs... i get the BSOD halfway thru the registry scan every single time. I cant do a full backup in safe mode either.

is there any way to rebuild the registry/repair it w/o the BSOD?

 

[LiLithTecH]

It could be the onboard (L2 cache) memory that is bad.

Also have seen that error with Antivirus software (run their Services).

Have you checked the Event Log to see what specifically is
causing the error?

 

[GlassGhost]

From http://www.microsoft.com/technet/tr...rodtechnol/winxppro/reskit/prmd_stp_ccgm.asp:

"Stop 0x00000050 or PAGE_FAULT_IN_NONPAGED_AREA

The Stop 0x50 message indicates that requested data was not in memory. The system generates an exception error when using a reference to an invalid system memory address. Defective memory (including main memory, L2 RAM cache, video RAM) or incompatible software (including remote control and antivirus software) might cause Stop 0x50 messages."

Yes, this is a memory problem. Bad RAM or bad L2 cache is probably the culprit. I would contact Kingston about getting a replacement stick of memory.

Edit:

Now that I think of it, are you sure your MB can handle 512mb sticks? I know some boards only take 1 256mb stick per slot. Might wanna look into that as well.

 

[? (=Þ)]

Now I'm pretty sure this is definately a registry problem. I have read microsofts page on this, but it wasnt very helpful.

The problem occurs EVERY single time I try a full access of the registry. I tried doing full backups, BSOD 60% or so thru (saved 20mb or so outta 35mb or so for a typical backup). I tried using a few registry repair/first aid programs, they BSOD in the middle of the scans.
sorta makes sense that it BSOD's on me during shutdown when the registry is accessed, but not when I'm playing CS when it isnt. Also it occurs often when i was trying ot update my video drivers, more registry access there.


PRoblem is, how so I fix it short of a reinstall? I cannot backup the current registry properly, can't run scanning programs on it, and can't access parts of it w/o BSOD's. any ideas guys?

btw, i have 2 256MB sticks. I have not changed much in my system for the past year, and this started occuring a month ago on shutdowns only... but is very frequent now.

 

[GlassGhost]

Interesting. A page fault is actually an error straight from the CPU. It happens when a page (4k slice of memory) the CPU needs from RAM isn't present in memory, so the fault is raised to give the OS a chance to laod it from disk (where it may be if the OS uses a virtual memory scheme.)

I know the windows kernal uses some memory internally (maybe the registry, I'm not too sure about this) that is *never* allowed to be swapped out to disk, so maybe this error has something to do with windows incorrectly loading part of the registry. If so, I can't think of a simple solution to fix it without re-installing.

You may want to check out (and if anyone has any experience with any of these programs please speak up) some of the registry cleaing/fixing programs on download.com found here:

http://download.com.com/3120-20-0.html?qt=registry&tg=dl-2018

Its worth a try I would suppose.


Good luck.

 

[? (=Þ)]

ahh thanks for the input guys... I have tried registry fixing programs, but I get the BSOD half-way thru the program's attempt to scan the registry.

In my desperate attempts to fix this, I loaded a 2 month old backup ver of my registry and my sys wouldnt bootup properly w/o BSOD in either safe or reg mode... so I ended up doing a format and fresh install. I couldn't find any other way to fix it. =\