PC shuts down randomly after overheating once

Hi

I'be bought a new PC today and it worked correctly until this point.

Scenario:
I placed all the hardware components in the case. I installed Windows 7 x64 and I installed a game. I played that game with my previous PSU (600W) and it overheated causing my PC to shut down. I replaced this PSU with a CoolerMaster (1000W) Silent Pro and from that point on it went downhill. My PC shuts down on random moments or seconds after pressing the power switch and it even takes me minutes before I can start the PC again. I tried placing my old PSU in again and it has the same problems.

Hardware Specs:

PSU: CoolerMaster 1000W silent Pro.
CPU: AMD FX-8350 AM3+ 16MB 4.0Ghz 125W Black
GPU: Sapphire Radeon R9 270X Dual-X 4GB PCI-E
Memory: Corsair ValueSelect DDR3, 1600-8GB KIT CL
Motherboard: ASUS M5A78L-M/USB3

What can possibly cause this? And how can I solve this?
Thank you!
6 answers Last reply
More about shuts randomly overheating
  1. That board isn't a good fit for the 8350.
  2. SR-71 Blackbird said:
    That board isn't a good fit for the 8350.


    Is it really just that which causes these failures?
    I mean, everything worked. My PSU overheated while playing that game and it all went downhill from that point on.
  3. With the thermal design on that board nothing above the FX6300 should be run on it.
  4. SR-71 Blackbird said:
    With the thermal design on that board nothing above the FX6300 should be run on it.


    Even though it gives me no warning at all? It just shuts down and it takes me minutes to get it start again.
  5. Other things could be involved , just wanted to let you know about the board.
  6. I am still having this problem after changing the PSU.
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