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How to Test & Stabilize your Over Clock (Tutorial) - Page 2

post #11 of 20
Quote:
Originally Posted by dealio View Post
i would venture to say that since SP1 & AVX came out recently IBT/LinX is a much harder test to pass than Prime95
For those with Sandy Bridge only.

And it doesn't mean it's harder, just means that it's using a different set of instructions.

When I get my mobo back, I will install SP1 asap.
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post #12 of 20
Quote:
Originally Posted by PanicProne View Post
For those with Sandy Bridge only.

And it doesn't mean it's harder, just means that it's using a different set of instructions.

When I get my mobo back, I will install SP1 asap.
it is harder because the new instruction set stresses the CPU a whole lot more

power usage under load went from under 100W to over 130W

temps from low 70s after 20 "High stress" runs to high 80s in just 5-10 seconds

you will see.
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post #13 of 20
Quote:
Originally Posted by PanicProne View Post
This is completely wrong.

If anything, and you want to be sure that Linx/IBT is the least bit reliable, always test with FULL RAM, and check for Gflops consistency from there. Testing with anything else besides full RAM is useless.

In case you didn't know, P95 and Linx/IBT stress different parts of the CPU/chipset.

IBT/Linx, runs the same instance of instructions over and over again, stressing the exact same part of the CPU.

P95, on the other hand, is a much more reliable "real-life" testing software. For LGA 775 Quads, for example, Large FFTs was ESSENTIAL to finding out of the GTL Refs and VTT were well calibrated. You could pass Linx all day long, and still fail Prime 95.

Prime 95 is a much better tool for finding long term stability not only on the CPU, but also for the motherboard/RAM.

Linx is more a "quick" testing utility, while Prime 95 is better used for long-term stability. So in the end, you need to know how to use both.
Exactly..

This is my testing methodology:

1. memtest Windows ver 4.0 at least 200% on each instance,

2. P95 LARGE FFT 12h (for GTL tuning,vFSB and vNB) with the lowest possible CPU multiplier as I want to test only FSB freq of the system and not Vcore/CPU freq,

3. IBT/Linx 20 runs with upped Vcore and highest CPU multi for testing Vcore..

4. P95 BLEND 12h with highest multiplier and upped Vcore from IBT test (for testing the whole system-CPU,FSB,RAM)

5. P95 Small FFT 12h (optional if you run BLEND and IBT but I run it anyway)..

CHEERS..
     
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post #14 of 20
hmm learned a lot from this thread than i have in others about stress testing..
post #15 of 20
Quote:
Originally Posted by KingT View Post
Exactly..

This is my testing methodology:

1. memtest Windows ver 4.0 at least 200% on each instance,

2. P95 LARGE FFT 12h (for GTL tuning,vFSB and vNB) with the lowest possible CPU multiplier as I want to test only FSB freq of the system and not Vcore/CPU freq,

3. IBT/Linx 20 runs with upped Vcore and highest CPU multi for testing Vcore..

4. P95 BLEND 12h with highest multiplier and upped Vcore from IBT test (for testing the whole system-CPU,FSB,RAM)

5. P95 Small FFT 12h (optional if you run BLEND and IBT but I run it anyway)..

CHEERS..
This is how it needs to be done.

If you want to stress test CORRECTLY, follow KingT's suggestions instead of the OP's method.
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post #16 of 20
Yeah, KingT's method is a great way of testing stability for all aspects.

IBT/LinX is mostly good for testing CPU stability. Not RAM, chipset or system stability.

All those that KingT mentioned needs to be combined for a complete stability test.
    
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post #17 of 20
Thread Starter 
I think some of you miss the entire point of my original post...

Rather than squabble with anyone, I'll leave the reader to decide what is correct....
Edited by _GTech - 3/1/11 at 12:15am
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post #18 of 20
Quote:
Originally Posted by _GTech View Post
I think some of you miss the entire point of my original post...

Rather than squabble with anyone, I'll leave the reader to decide what is correct....
The reader doesn't have to go through all of your misinformation.

All they need is to refer to KingT's posts to ENSURE they are stress testing properly.

Your method of relying on Linx is completely wrong. Especially when you say that you use only 2GB of RAM. They will think that is the correct amount, when in fact you should always test with FULL RAM or at least as close to that as possible.

Also, Linx is nowhere near being a real-life number crunching test as Prime 95.

Linx is not reliable at all to "error-proof" an overclock. In fact, it's not advisable at all.

The most useful thing Linx can do is to find the max temps for a given OC. Linx always stresses the same part of the CPU, while P95 is much more versatile.
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post #19 of 20
This thread is pointless. No earthshattering news here... everything can be found in the sticky at the top...

fishing for rep? heh

Quote:
Originally Posted by _GTech View Post
extremelly
Try using spell check or learn to spell correctly.
post #20 of 20
PanicProne, other than on Sandy Bridge Prime95 has lost a lot of followers the past few years because it isn't half as good as IBT or linX. Honestly what people are seeing with SandyBridge and IBT/linx stability vs prime95 has been the exact opposite for the past 3-5 years. IBT/LinX would find and error that prime95 did not. Maybe Prime95 should be added for SB, he reserved a post and i think it should be added.

Also yes the amount of RAm selected matters, but honestly everyone stress tests differently, some people don't stress test at all because it damages their precious chips. He should leave it up to the reader how much they want to stress depending on RAM size, but yea selecting all RAM usually works, but sometimes makes it use too much RAM.

Mr. Obvious who the hell are you.
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