Windows 7: PAGE_FAULT_IN_NONPAGED_AREA

I am unable to boot at all, not even enough to get to the system repair functions. When I try to boot up, the system loads files, then goes to the starting windows logo, churns for a few seconds and goes to a blue screen. The following message appears:
PAGE_FAULT_IN_NONPAGED_AREA
STOP: 0x00000050(0xFFFFFA88040EB5B8,0x0000000000000001,0XFFFFF8000C09E3CC,0X0000000000000005)

I have even tried this with a clean HD and get the same results. Memory test in bios says 4gb test good. I have cleared cmos, updated bios, tried switching HD SATA connectors, all with blue screen end result, although the codes are not always the same.

Does this look like I need a new MB?

these are the usual causes, but we could use the actual dmp file

Bug check 0x50 usually occurs after the installation of faulty hardware or in the event of failure of installed hardware (usually related to defective RAM, be it main memory, L2 RAM cache, or video RAM).
Another common cause is the installation of a faulty system service.
Antivirus software can also trigger this error, as can a corrupted NTFS volume.


You cant use the win diags for memory test you need to use memtest as indicated below.


Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Boot from the CD, and leave it running for at least 5 or 6 passes.


Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot. Test the sticks individually, and if you find a good one, test it in all slots.


ken J

Memtest ran thru 6 passes with no errors found. Have you any other suggestions for me?
Is memtest supposed to map the memory on the ATI All-in-wonder video card?

I can't run any other diagnostics from the Windows 7 install disk because the BSOD comes before the install gets to a useful point. It never gets far enough for me to look for a dmp file. I have not installed any new hardware or software. Asus Express Gate,which runs before Windows bootup, allows internet access, and using it the computer will display images, sound and video from web sites. Do you think my video card could be bad and still run the Express Gate graphics?

The problem was with my original HD. As long as I had it connected, the BSOD with code 50 kept coming up, even when I was trying to do a clean install in a new HD connected in another slot. When I finally removed the old HD from the system, I was able to do a new install. Now it remains to be seen if I can retrieve the data files from the old HD. More later.

With this new insallation, my tv tuner would not work. I was advised by AMD to get the original drivers and Media Center updates which had been working before! Since the only place that combination existed was on the old HD, I reconnected it, and was able to use the repair section of the Win 7 installation DVD to get everything working like it was before the crash. I'm not sure why the HD worked after being disconnected and reconnected, but I'll take it.