PC freezes when playing games or tests? help please

TheCooIIemon

Honorable
Mar 22, 2013
14
0
10,510
Hello guys, i built a new pc and i think everything works good, however whenever i do a:

-Windows Experience Index Test
-Play Games
-Do a Stress test

It makes my computer freeze after a few minutes.
I dont know if the motherboard, cpu or gpu is damaged or something which might be causing it (brand new parts though)

What can i do to fix this?

i checked the logs and they had so many errors and warnings.

My computer specs are:
GTX 660 MSI
OCZ PSU 550
WD 6GB/S (compatible)
Pioneer optical drive
Asus M5A 78L-M/USB3
Fractual design core 1000
I got one 120mm fan at the front
FX 6300 AMD processor

I use the MSI kombustor stress tool which came with the gpu. (it shows temp and cpu load etc.. information)

I use the windows experience index that rates my computer.
Both of these freeze.

UPDATED:
The windows index experience test works perfectly fine now. when my pc kept freezing at the stress test and i noticed that the back of the case got hot. Twos days later it didnt crash at all and I was playing high end games perfectly for hours and the back of the case wasnt as hot like before. It worked amazing for 2 days straight, all my drivers were all the date and i ran 3 different stress tests for 1 hour each which didnt make it freeze. However yesterday, when i was playing a game it crashed after a few mintues and later on a stress test froze my pc. I did two more stress tests again today and it still freezes. I run the memtest but no errors came up.
The logs just before the stresst test were:
(error)10:05 -WMI
*Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.
(error)10:06 - Dhcp client
------Ran stress test and it freezes so i restart the computer------
(critical)10.18 kernel-power
*The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
(error) 10.18 - eventlog
*The previous system shutdown at 10:11:55 on ‎14/‎04/‎2013 was unexpected.
(error) 10.18 - eventlog*Audit events have been dropped by the transport. 0
(warning) 10.18 - bowser
(warning) 10.19 DNS client Events
(error) 10.20 -WMI
I used the offical msi stress program called kombustor 2.5 and it froze at 10.12:
(Furry and tessy test) 1024*576 (AAff) Tess: X12 (inner) X8 (outer)
-Frames:8285 Time: 00.02.26
-GPU Load = 99% GPU Temp = 64C Power of gpu = 100+
-CPU temp = 50C MB = 31C CPU = 2596 rpm Chassis - 1220 rpm
-CPU Usage = 33%

The PCI-E is plugged in properly, i reseated the heatsink, i did a memtest test which got no errors.When my pc was running perfectly, In the stress test i realised that the temperture didnt goes up as fast as they does now.