PC shutdowns and reboots under load or during games

[kingferp]

I recently upgraded my pc with a new mobo, CPU, GPU, and RAM

Here is the componentlist;
Core; Intel i7 3770k
mobo; MSI Z77A-G45
RAM; Corsair Vengeance LP 2x4GB
GPU; XFX Radeon 7970 Black Edition
PSU; Techsolo GTP-680 (680W)
OS; Windows 7 Ultimate

After installing the OS I downloaded and installed AllBenchmark and started running it at 720p, after a minute or so the system shut down and rebooted.

So I decided to run the benchmark again this time monitoring the temperatures. The cpu temperatures never exceeded 60 °C and the GPU ditdn't get any hotter than 70°C untill the shutdown.

After this I tried running stresstests, first I tested the CPU, which runned perfectly there was no shutdown. secondly I tested the GPU first with FuMark than with MSI Kombustion,

The Furmark burn-in runned on 720p with 8xMSAA with a constant temperature of 72°C, with no shutdown.

The MSI kombustion Xtreme burn-in test ran smoothly at 720p with a constant temperature of 75°C, with no shutdown

But when I ran the MSI kombustion burn-in test at 1680x1050 (maximum screen resolution) the system shut down and rebooted again.

The PC also shutsdown when I try playing games like bioshock infinite, where it crashed during the main menu.

AC3 however ran smoothly for about 5 minutes but after I decided to quit the game, the system crashed during the process of quitting to the main menu.

I am totaly lost here can you guys help me out?

 

[Ketchup]

Try taking out a stick of memory at a time and doing your tests, playing a game.

 

[kingferp]

Replacing the PSU seemed to fix the problem. So I guess we learned you shouldn't buy a techsolo PSU.

 

[J Macker]

That was my first thought. I've never even heard of that brand.

So, we learned here that wattage advertised does not make a psu capable...

 

[Steltek]

If it isn't a Seasonic, Corsair, newer model Antec, or XFX (good power supplies, lousy customer service though), I won't touch it. Period.

You get what you pay for, and with power supplies that is most especially true.

Techsolo power supplies are actually OEM'd Channel Well manufactured units -- they (Channel Well) make some good units, as well as some not-as-good ones. If it is an older unit, that could also explain the problem (Antec took some major hits back during the bad capacitor days on Channel Well-manufactured power supplies they were selling, to the point that they actually changed OEMs).

 

[adreamer]

Agree with Steltek..I've also had good luck with Enermax. But I won't bother if I've never heard of the company.

Power is one of the items in my rigs I don't go cheap on. I always tell people to think of it this way..what is the one item other than the case that touches everything..power..if that one item dies or shorts out..it has the potential at least to destroy pretty much everything.