PC freezing completely

[Nolimit]

Not sure if this is right place but here goes anyway:

Since I made this PC i've been getting PC freezes. First it was only while I was playing WoW but now it froze with it not running.

I thought it is only while playing wow but now I realize there's bigger problem.
What happens is it just stops, everything freezes and only thing I can do is press reset button. While playing wow sound is still is on, for example if I'm listening to music an it freezes music will go on, but now when it froze music also got frozen and annoying sound was repeating.

What I did was: reinstall visa x86 few times, install vista x64, reinstall it too. Format ofc, reinstall all drivers, programs etc..

I have no idea what could be causing problem. I cannot experiment with parts because I don't have other ones. Also I bought parts and made pc while I was in USA few months ago but now I'm faaaar away...

Until few minutes ago it was only happening in world of warcraft so I thought it was some conflict, but with this last freeze it really got me worried. I can't afford new PC, I've been waiting for new one for years and this is what I'll have for long time...

Here's dxdiag and msinfo
http://nolimit.ss.googlepages.com/DxDiag.txt
http://nolimit.ss.googlepages.com/msinfo.txt

Please help, any way you can,I'm really desperate

 

[Lamont Cranston]

can you make a list of your hardware and if you are running any OC or not? - i started to read through the msinfo but there is just too much there to make any sense of....

 

[Nolimit]

Nothing's overclocked
Intel Quad Core Q9450
MB: P5Q-Pro
4GB DDR2
Ati 4870X2
got some nice big heatsink+cooler
1000+w PSU
2 600GB HDDs
wireless card and all in big nice cooler master case, if you need exact names and all of everything I can get that too

 

[Nolimit]

Since that time it has only froze while playing wow, and now more frequently.
I don't know what to do, I'm not playing wow and that's like being junkee without drugs. Well, not that serious but still annoying that I can't play it. Well I can but it freezes quickly and raises my anger level...

Wish there was some PC shop or something here where I could take it, only thing I can do is research like this online :/

Edit: Tried switching ram and having only 1 in, still happened. Will use ram from my other pc.

Also I noticed my vga temp is around 63c, is that too high? When I touched it it was pretty hot. Will check how much it is while game is on. Could VGA overheating be problem?

editx2: So I tuned fan speed manualy in ati tool, put it to 65% and temp dropped down to ~42, put pc still froze -.-

Editx3: got wow running for a while but at login screen and its not freezing, it seems it only freezes while game is active. will log in and stay at character screen and see what happens...
editx4: was at char screen now, no freeze. Happens only while logged in game and playing...

 

[Nolimit]

Gotta bump thread.

I'm having really hard time, I'm about to join best guild on server and I can't run wow. I just had freeze after ~min, then when PC got up freeze even before I got in game, at point where loading screen is about to go off, so it seems to be triggered only in game.
Tonight I'll try to use ram and vga from my other PC, if that doesn't help I don't know what to do.
Atm I'm in a really bad mood(depressing) and this isn't helping...

Edit: Could this be MB issue?

 

[Nolimit]

I've researched a bit on asus forum and it seems like I should change some voltage and speed stuff in BIOS, but I have no clue what to change or put. Can anyone help me with this? Some guy posted exactly same problem but with different mobo, he changed some stuff there and it worked...

Edit: Ok one request please. I want to overclock my cpu to 3.00 from 2.66 and set up those voltages and stuff properly, but I seriously have no idea how to do any of it and I've been researching for few hours now and not coming with anything helpful. can someone please help me with this? at least voltage stuff? everyone says when it's on auto it's bad and i dunno what to put