BSOD/Freezing......memory??

[smurfsriot]

I have had my new gaming rig for about a month now and have had a problem since day one that, at times, seems to get better. Vista will randomly freeze or rarely get a BSOD. Sometimes in a game or sometimes browsing the web. It is completely random (sometimes right after loading windows, sometimes after 2 hours of being on)!! I have Vista ultimate 64. I have updated ALL DRVERS i can think of when it comes to hardware. I have AVG running and know I don't have a virus or spyware (I don't really have any programs installed, just games). My temps (cpu, gpu, nb, sb) are all down far below anything that would be of a concern. I've read many places that it may be due to memory settings/volts. I changed my volts to 2.1 and it actually stopped the frequency of the freezes but did not eliminate them. I also changed the timings/frequency on the memory with no effect on the freezing. I don't think I have any "bad" memory. I did run memtest86 and it said all sectors are fine and no errors. I've changed video cards and know it isn't that. I have ordered a new psu (antec cp-850 psu with the antec twelve hundred case, I also have a spare hd 4870 1gig i will be adding, will receive on 07/17/09) to be certain it is not a power issue. Could an underpowered psu or faulty psu generate these problems? I personally think it may be an issue with the hard drive or possibly still the memory. I am going to do a clean install of vista again soon, I just wanted any suggestions before I start from scratch or maybe I am completely overlooking a simple problem. Maybe memory timings/frequencies/voltages or maybe any other hardware settings? Also I forgot to add that originally I only had 4 gigs of the memeory (I know the gold OCZ brand is not the best by far, but price was a steal) and I still had the freezing.

Any suggestions would be GREATLY appreciated! This is becoming a huge headache!!!

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SPECS
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Windows Vista Ultimate 64
Phenom II x4 940 (stock 3.0)
ASUS M47A9 Deluxe
8g (4 x 2g) OZC gold ddr 1066 (running right now at 800mhz)
XFC HD 4870 1gig
Zalman 9500A
Arctic Silver 5
Edimax PCI wireless card
Seagate Barracuda 500gb sata
Samusung 22x DVD sata
Raidmax Smilidon
Raidmax 535w modular psu
Asus VH242H 23.6" full 1080p monitor

 

[smurfsriot]

It was the psu. After I installed my new Antec CP-850x psu in my new Antec Twelve Hundred case, everything has finally been running like a dream!! I guess I posted in the wrong place because of the lack of responses to my question. Thanks for the suggestions/help????