System Restarts - OS Logo

I've encountered many threads, which have a more or less similar content as mine, but none seem to be entirely similar. I've even tried out the solutions for most of them, however, I still find myself at the same point. The nature of my problem, as the title suggests, is that every time I'm trying to boot my system, the Windows XP loading logo page comes up and after a few seconds, the system restarts itself. After disabling the "Restart If System Encounters Error" option from the menu screen available after pressing F8, I was able to discover that the BSOD actually said that my system was experiencing a "PAGE_FAULT_IN_NONPAGED_AREA" problem. Thereof, I've tried to fix the problem using the following methods, 1 -> Taking out my RAM chips and remounting them on the motherboard. 2 -> Running Windows Memory Diagnostic tool (Both Standard as well as the Extended Test suites): Neither detected any errors with my motherboard or the RAM chips. 3 -> Tried starting using the "Last Working Configuration" option from the F8 menu: System still reboots at the same point.
4 -> Tried starting in Safe Mode: System still reboots at the same point. 5 -> Ran CHKDSK /R using Windows Recovery Console: Doesn't fix anything 6 -> Tried Repairing my Windows XP installation, it does all the things but right before it steps into the Repairing Menu, the system restarts. 7 -> I haven't installed *any* hardware or software of late. The last *wrong* thing I did, was to shut down my system forcibly (shutting off the power directly), because it wasn't shutting down even after nearly 30 mins had elapsed since I ran the command to shut it down. My last option remains, that I go for a complete reinstall of XP. However, I'm not entirely convinced that this can be the only solution and considering the overheads of taking backups, I'm not really enthusiastic about it either. I'm also hoping that I can get my hands on a different set of RAM chips to check my hardware for sure, but that'll take a week or so.