alright, didn’t know that, never happened to me
Still, it’s weird since OCZ PSUs are really not that bad. But if I can recommend one PSU vendor that would be “Be Quiet!”, had one installed in a 8 year old PC and it’s still purring like a beast!
Also looking at your rig I’m getting the feeling 700W might still not be enough 
nah, 700W should be enough, but you could try a better one though, but I think 700W should definitely be enough
I’m pretty sure it’s an overheating issue due to this happening to me before.
Try this.
Needed - Decent thermal paste of your choice / new cooler?
Remove the heatsink from your computer.
Clean the processor and the bottom of the heatsink with a cloth. (rubbing compound helps.)
Apply new thermal paste in the centre of the processor and spread evenly with a credit card.
Reapply the heatsink and check the temperatures.
If the problems continue, you might have to get a new cooler. e.g.
Let me know how you get on. 
EDIT: Make sure the RAM is FULLY inserted, it can cause problems if not in right. Also try 1 RAM stick at a time to see if the RAM is at fault.
What other hardware are you running?
e.g. Hard drives, Disk drives, etc?
If it really is an overheating issue, obviously before replacing the thermal paste and the stock cooling it’d be wise to monitor the temperatures of both the CPU and the GPU.
EDIT: Missed the part where he stated his cpu temp
read the first post, there you can see the temps, except the GPU temps, but I don’t think that the GPU temps are the problem, he would here a tornado if that thing gets really hot
EDIT: where is hubi now?
I’m pretty sure it was stated that the CPU temp was around 70-80c. Besides, the GPU should be fine with the stock cooling setup.
EDIT: :ninja:
EDIT 2:
Most likely trying some of our solutions sir.
Bythe way, if the fan is plugged into a 4 pin connector you should be able to control the fan speed right from the BIOS. Maybe it’s not properly configured and you can give the rpms some boost.
Sounds like I problem I had for a while. I believe the solution I had was to change some of the wires coming from the power supply, if you have any spares, give that a go. I was a 6-8pin adapter (I think) and it was screwing up because of that. My situation was very similiar, it shut of RANDOMLY, totally randomly (because the wires were loose)
Mmight be stupid but double check that none of the wires inside are loose! ^^
It doesn’t look like a temp issue.
I’d monitor the GFX card (you have a hot one) with GPU-Z just in case, but it crashes when both idle and under load, so I doubt its temp related
So, imho, first would be to run a memory check with memtest86+. Let it run for a few hours (12 or something). If will report faulty memory. This is also very often the case with new PCs randomly not working.
Also, try swapping your PSU. It’s hard to measure precisely if the voltages are correct (something with load and stuff) so try with another.
Oh, also: is your motherboard properly insulated from your case? Take it out and put it on a piece of wood or other non-conducting material, put in just those components needed to boot, so your MoBo, CPU, mem and one HDD or just the CD-drive (maybe not even those if you run memtest off of USB ). Then test your PC, if it’s stable, add a component, rinse and repeat.
Good luck!
I wouldn’t be surprised if the GPU was overheating, that’s why everyone seems to be going ATI nowadays! 
EDIT: I agree with Zsub, my old P4 kept shutting of after a short time within 5 mins after booting because there was a short, turns out I didn’t mount the motherboard correctly. :retard:
would be good if hubi would tell us what he did so far
I had an overheating GFX card aswell but the worse I got was texture corruption, BSOD or black screen. The Computer was still running I just had to hard reboot to get back to windows.
The Best are anti-static wristbands, but plastic gloves are just as good. I installed my stuff with gloves with no issue
I remember some Memory corruption situations on my old PC, and this can shut down the whole system but in very rare cases. I got endless stuttering (loop), freezes, BSODs, and reboot. But in these instances the mainboard would give a never stopping error signal.
never used anything like this, always installed my hardware with my bare hands, but before I did I touched the grounding contacts in a power socket
I have to admit I’m extra cautious when it comes to this, but yes this does the trick aswell. Letting the power connector of the PSU plugged in but the PSU switched off, then touching the case or what you said before proceeding to touch any part.
I just put on some extra gloves just in case :retard:
I would recommend replacing your fan and thermal paste regardless of it being the issue: running your CPU at lower temperatures will help extend its life and keep it more reliable anyways and it sounds like you need it. To me, though, it sounds like one of three issues (all of which have already been suggested by people here):
[b]- Safety shut-off from a short inside the case, usually a loose wire.
- Faulty memory.
- Heavy load on the power supply.[/b]
Definitely recommend running memtest86 and fixing your cooling, though.
hmmm… some possible solutions;
check RAM is fully inserted;
check RAM is correctly paired if it is a pre-paired type;
check PSU isn’t pulling a fast one on you;
have you done a disk error check?;
check the cables for the HD are fully inserted (I had a problem caused by that in DVD drive);
upgrade from the stock heat-sink and use some decent thermal paste;
check again that the RAM is compitable with your motherboard;
make sure the windows 7 version isn’t the beta version - I had loads of trouble when they turned it off and eventually gave up and switched back to vista;
hope this helps…
really plastic gloves? thought that they’d allow charge to build on the surface of them…
depends, there are anti-static plastic gloves