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2500k oc intelburntest?

post #1 of 10
Thread Starter 
Hello ocn,

Is it normal that while my cpu is clocked at 4.2 ghz and intelburntest is running, cpu z only shows 4100 mhz (41 multiplier)?

When i run anything else like prime95 it shows 4200 mhz (42 multiplier).

2nd question: which test to run and for how long to check whether my oc is 100% stable. Is 20 runs of intelburntest and 2 hours of prime95 small ffts sufficient?

Last question: is 109 gflops a normal score for 2500k at 4.2 ghz in intelburntest?

Thanks in advance ocn



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post #2 of 10
Don't worry about gflops, its not very accurate. And what's stable for you, may not be stable for someone else. around here, 12 hours prime blend with 90% ram usage is considered "stable"

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post #3 of 10
No idea on why CPU-Z would be doing that.

As far as stress testing, I've passed 50 runs of IntelBurnTest (max RAM), 12 hours of Prime95 blend, and 48 hours of straight folding, only to fail halfway through a StarCraft II 2v2 match... My test for stability since then has been to just run each test for a bit, then use it as you normally would. Your normal/everyday use will find instabilities eventually.

Hope this helps. Good luck!
 
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post #4 of 10
I would do 6 hours of prime and 5 passes of IBT with Max ram. Might just be a CPU-Z bug.
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post #5 of 10
Woops... double post. Please ignore.
 
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post #6 of 10
If your multiplier is 'acting' up it could be down to setting the turbo power limit's which is most likely causing the throttling. Set the Turbo power limit to manual and the long and short duration to 300 and that should do it

Stability is hugely subjective, however Prime blend with 80/90% RAM would be a good option as SMK said.
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post #7 of 10
Quote:
Originally Posted by munaim1 View Post
If your multiplier is 'acting' up it could be down to setting the turbo power limit's which is most likely causing the throttling. Set the Turbo power limit to manual and the long and short duration to 300 and that should do it

Stability is hugely subjective, however Prime blend with 80/90% RAM would be a good option as SMK said.
I borrow the thread:

How do I run "blend with 90% memory" ?
Something like this?



(I have 8gb ram)
rob
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post #8 of 10
Quote:
Originally Posted by robalm View Post
I borrow the thread:

How do I run "blend with 90% memory" ?
Something like this?
(I have 8gb ram)
yeah that's right.
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Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
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it looks alive
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Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
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post #9 of 10
Quote:
Originally Posted by munaim1 View Post
yeah that's right.
Tnx sir
rob
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rob
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post #10 of 10
Thread Starter 
ah ok thanks a lot guys biggrin.gif

+rep
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