Intel Burn test - how long do I need to stress test for?

Soldato
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Right now I'm using Linpack in OCCT, and it seems to be failing in around 15 mins, yet I'm running IBT v2.2 by AgentGOD, and it seems to run 5 passes with no troubles.

How many passes do I need before I know I'm stable and is it worth running 2 or copies of IBT in order to really test the memory?
 
I ran Intel burn test this morning before I left home with 20 passes with Auto threads. When I get home I am going to see how long my system managed to survive for, hopefully it lasted the whole 20 rounds, then I will be a very happy man
 
Managed to get it running ok in the end, clocked back the FSB by 3MHZ and it passed 2 hours of intel burn despite the cores hitting 70.
 
I ran the Intel burn test before I left for work in the morning, set it to 20 passes with Auto Threads, came back home and it passed it all!

Then I decided to run Prime Blend test, and checked after 6 hours of running and all 8 cores are stable! First time I have managed to get it working like this, so I am very happy as it clocks from 3.81 to 4.0 when under load :D
 
Back in the day 24 hours (or so) of Prime95 was the sacred cow of stability, now IBT is around (and A LOT) more taxing on CPUs, is there not a new standard of stability?

20 IBT runs doesnt last 2 hours, or has the whole "longer the more stable" axiom been felled along with prime95?
 
I think IBT pushes the maximum cpu usage possible, which is more than any application/game will push it. This sort of gives you an extra reassurance of stability knowing that it wont be pushed this hard in everyday situations, but can still stay stable if it needs to.

Prime on the other hand is more realistic of gaming/rendering/encoding etc over longer periods of time, which gives a more realistic view on temps and stability. Not too mention Prime also tests the memory and strains the north bridge over long periods, which can show signs of not being stable.

Use IBT (20x max) for CPU voltage settings, and Prime tests for other BIOS settings. If both of these pass without a hitch for a few hours each, then you've got a stable system.
 
yeah if it passes 20 rounds at max stress Quadcore *4 threads* I7 *8 or 16 threads*

then consider yourself stable. its all that was needed for my i7 lol
 
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