WinXP Page Fault blue screens

I have recently constructed a new machine with the following primary specs:

P4-3.0Ghz (800MHz FSB)
2 x 512MB Corsair TwinX3200LL Dual Channel DRAM
Gigabyte 8KNXP motherboard (AC97 audio)
80GB 7200RPM WD IDE HDD (768MB pagefile)
GeForce4 Ti4200 (nVidia 53.03 drivers)
Windows XP Professional SP1 (fully updated)

Since running it for the last two weeks, I am getting random blue screen crashes with the following message:

PAGE_FAULT_IN_NONPAGED_AREA

It also has an associated memory address (not always the same) and a filename (which also changes). Some of the filenames I have seen include:

NTFS.SYS
DXG.SYS
NV4_DISP.DLL

I have run full memory diagnostics using Memtest-86, Microsoft Memory Diagnostic and DocMem. I found what appears to be faults in one DRAM chip so removed it and ran the single good chip, but the problem has recurred.

Does anyone have any advice or ideas on the cause/remedy???

Possibly a problem with your video card driver.
I would uninstall the nVidia driver and associated software. Remove all registry entries associated with nVidia. Then reinstall the latest WinXP certified driver for the video card.

Use both memory modules and use their default timing values.

If that doesn't work I would then delete all partitons on the hard drive, reformat and reinstall everything again.

<font color=red><i>Doctor Hooter</i></font color=red> <A HREF="http://www.page3.com/" target="_new"><b>(·Y·)</b></A>