Best pc test stress

[john_blow_cls]

Which one is better for testing stability of a overclocked pc?
PRIME 95 or INTEL BURN TEST v2 ?
In my tests intel burn v2 pumps the temps with like 4-6 celsius more then Prime and gives faster response if your pc is stable or not.

 

[apache_lives]

Prime95 (theres different modes btw)

OCCT is also apparently good although it craps out on me too often to recommend it - its still crap to me.

 

[manonthepack]

I have used Prime95 for temperature test(large FFT test some ram). OCCT runs only on two core, I can't make it run on the others two, I have errors.

 

[afq]

prime 95 Blend for 3hours is the best thing to check stability!

 

[john_blow_cls]

using Prime for 3 hours gives no errors, but after using Intel BUrn Test in high settings stress gives error after 10 minutes.
Is more thrustly Intel burn or i just have to run prime for a longer time ?
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COre 2 duo e 4500 333x 9 -- 3.00 ghz
Gigabyte p 31 es3g Bios F4
4 giga ram Adata extreme ddr 2 800 + set to 1:1 ratio
Gainward 9600 gt 512 mb ddr3
1tb Hitachi s-ata
450 watt delux
Cooling Arctic freezer extreme
1 case fan
=================
P.S. I cant get stable 3300 ghz even using the maximum cpu Vcore. fsb volt. etc
Is this happennig because of the mobo or because of other component, maybe the psu wich is not a strong brand name ?