Your refusal to not set your system back to stock is not helping the situation.
Thanks for the constructive input, chief. Might want to read the entire thread before you post?
Ok everyone. Update.
I started out with doing exactly what I said I would do. I was going to install keeping my OC intact, and if I had problems, back down to defaults. I obtained a copy of Vista x64 with SP1 slipstreamed, and set out to do the install.
Please note that each install involved a clean wipe (format) of the hard drive that Vista was being installed on.
As I pointed out earlier, I had reason to believe that it was possible the issues I was having was with the Intel INF drivers. So, I left my OC intact and proceeded to install Windows. At the 2nd reboot when Windows is completing the install, the setup promptly froze. Hard lock. No BSOD or anything like that, just hard lock. I went into BIOS, and raised voltages by one tick for northbridge, southbridge, and memory. I restarted the setup from scratch and was able to get Windows installed.
I proceeded to install older INF drivers, and the rest accordingly (Windows Update, device drivers, etc.). So far so good. After I installed a few little programs, Windows promptly froze.
I backed out, went to the BIOS, and got rid of my OC. I simply set my CPU/memory speeds back down to default (since that's basically all I have OCed) and left everything else intact. Off to install Windows again. On the part of Windows setup where it says "Installing Updates", this time setup BSOD on me, with the following error:
"A device driver attempting to corrupt the system has been caught. The faulty driver currently on the Kernel stack must be replaced with a working version.
Technical Info: *** STOP: 0x000000c4"
I backed out, and this time, set my ENTIRE Jumperfree section of my BIOS to AUTO. Auto EVERYTHING, including voltages, timings, etc. etc. Then I went into my CPU setup section and enabled ALL the power saving options (I traditionally disable Speedstep, C1E and Thermal Disable).
Again, install Vista from scratch. This time, Vista setup completed without ANY crashing whatsoever. Well then, time to install drivers and programs and see how it really reacts, heh? Install all device drivers, Windows Update, and loads of programs, and extensively tweak the OS. All of this completed without any crashing whatsoever.
I went ahead and reestablished my OC, but instead of FSB @ 410, I backed down to 400 (this means CPU is running at about 3.21GHz, and memory is default 800MHz). I left it last night undergoing a memory stress test, all 6GB of it under load. I'm going to stress each component separately (memory, video, CPU). Here is where I need your help/opinion.
I have reason to believe that if anything, it might be memory timings. The reason for this is that the third time around, why is it that although I set my CPU/memory back down to default speeds, it still crashed? I know nothing was underpowered; everything had plenty of voltage, and any more would have been getting excessive.
In addition, I'm doing stress testing a bit different. This time, I'm going to be using the x64 variant of Prime95, as well as some other graphics stress tests available. Once again, the environment is the same: ambient temps in 90s + humidity.
So far, the illogical theory that Vista x64 is much pickier about an OC than any other OS is holding out to be.....true. It's illogical for the reasons I stated earlier in this thread, but, so far, is turning out to be true.
Discuss. Constructive suggestions/criticism welcome.
Edit: I realize you'll all need some info on my OC, just to see that nothing was starved for voltage, which most of the time is the most likely culprit in an OC.
CPU @ 1.3875V
Mem @ 2.15V
Northbridge @ 1.30V
Soutbridge @ Auto
Vdroop control ENABLED