shutdown on cpu peak

[Watembezi]

Hello,
everything is working on my new build, except that when the cpu reach full load, my computer shutdown immediately....(Digital performer waveform rendering, handbrake encoding...strangely not with geekbench)
i try to remove some components and search on forums, but nothing helps until now.... i'm running out of idea...please i need some help!

here is my build;

Mountain Lion

Cpu- intel i7 4790K
MB- Gigabyte Z97X-UD5H (rev1.0, bios F6)
Graphic- ASUS GT640
Ram- 20gb Corsair Vengeance LP blue 1600 mhz (2x8+4)
PSU- Corsair RM650
2 SSD intel 300 series
4HD 3,5'
Sonnet Tango 800 Pcie (firewire800 card)
blue ray burner (don't remember brand and model, but if you need i can check it)

thanks a lot!

 

[Watembezi]

nobody? or i'm in the wrong forum?

please need some help!

 

[neilhart]

Are you running the Hardware Monitor app? What are the CPU temps at peak load?

Good modding,
neil

 

[Watembezi]

hi,thanks for reply!on peak load i reach around 78° celcius, shown in red on hardware monitor app, looks ok, or i'm wrong?

 

[mushers]

hi,thanks for reply!on peak load i reach around 78° celcius, shown in red on hardware monitor app, looks ok, or i'm wrong?

Sounds far too hot too me

 

[Watembezi]

i don't know so much about usual temps, but on my MacBook Pro late 2013 on cpu peak (handbrake encoding) i have similar temps...also, you should know that i'm living in Zanzibar, 30° actually...
what temps i'm suppose to reach on cpu peak?