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Whats the best CPU stressing tool these days? - Page 4

post #31 of 61
Quote:
Originally Posted by Iwamotto Tetsuz View Post

OCCT or Prime95
Memtest also handy when overclocking fsb

 

FSB? We're talking about overclocking a Sandy Bridge CPU, so there is no such thing as a FSB. Are you talking about the BCLK?

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post #32 of 61
Quote:
Originally Posted by TwoCables View Post

FSB? We're talking about overclocking a Sandy Bridge CPU, so there is no such thing as a FSB. Are you talking about the BCLK?
Yes
post #33 of 61
My experiance is that if you reach above 6 hours prime95 blend on several settings then you wont have any bsod or problems in games. Obviously if you only manage 6 hours in prime95 custom blend then you wont be prime95 strable since you havent done all ffts or what ever the kid mentioned in the first posts. By that said I think you need to manage alot less hours in prime95 to not bsod during gaming.
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post #34 of 61
Quote:
Originally Posted by PachAz View Post

My experiance is that if you reach above 6 hours prime95 blend on several settings then you wont have any bsod or problems in games. Obviously if you only manage 6 hours in prime95 custom blend then you wont be prime95 strable since you havent done all ffts or what ever the kid mentioned in the first posts. By that said I think you need to manage alot less hours in prime95 to not bsod during gaming.
If you can do 30mins to 60 of any stress test you likely to be albe to run it for 20hours without faliure given that you abient temps don't increace crazy
post #35 of 61
Quote:
Originally Posted by PachAz View Post

My experiance is that if you reach above 6 hours prime95 blend on several settings then you wont have any bsod or problems in games. Obviously if you only manage 6 hours in prime95 custom blend then you wont be prime95 strable since you havent done all ffts or what ever the kid mentioned in the first posts. By that said I think you need to manage alot less hours in prime95 to not bsod during gaming.

 

I'm not a kid. I'm 36 years old.

 

The Blend test in general has 82 FFTs (the Custom Blend test just means that you are customizing the Blend test, just as long as the Blend test is selected when you select Custom). So, you can't just do it based on time. It's not a constant unchanging load in Prime95: each FFT is different from the previous, and no two FFTs are the same. Custom or not, you're having to go through a large number of FFTs.

 

So, running Prime95 for 6 hours means that you are only getting through the first ~20 FFTs. Now, you would think it that it would be 24 FFTs since it's 15 minutes per FFT for 6 hours, but there's a little pause in between each FFT and that adds up. That's why it takes longer than 20.5 hours to get through 82 FFTs at 15 minutes per FFT. It's actually about 24. I've tested it myself.

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post #36 of 61
Quote:
Originally Posted by Iwamotto Tetsuz View Post


If you can do 30mins to 60 of any stress test you likely to be albe to run it for 20hours without faliure given that you abient temps don't increace crazy

 

This is absolutely not true. Let me share one of my experiences with you:

 

When I was new to overclocking, I was told that if my computer could run Prime95 for 9 hours then I would be 100% stable. So, I did that. It was stable for all 9 hours and then I went about my business. Not long after, I started seeing instability in various forms. I didn't get any lock-ups or BSODs, but instead I was having problems with some of my favorite programs. Sometimes it was a visual glitch, other times it was just unwanted behaviors or things that seemed like bugs. So, I asked about it and I was told by a different person that I should've run Prime95's Small FFTs test, and that it should be for 12 hours - that the previous advice that I was given was bad.

 

So, I got to work and started Prime95's Small FFTs test and tried to let it go for 12 hours. At about 10 hours into it, it failed. So, I increased my core voltage and made some other recommended changes, and then it passed right through the 12th hour no problem and I even made it to nearly 14 hours but I grew impatient and I just wanted to use my computer. After that point, I had no more problems.

 

A few months later though I encountered some new unwanted behaviors in some of my programs. I assumed that it was instability and sure enough, Prime95 failed shortly after that 14-hour mark. So, I tweaked my settings some more and this time it went for 24 hours and beyond with no problems. From that day forward, I had a perfectly stable computer.

 

Fast forward to my sig rig, and I set my goal right off the bat for 24 hours of Custom Blend (because the CPU has an IMC) using about 85% of my memory, and my computer has been absolutely problem-free since July of 2011.

 

Here's something else: during my time on OCN, I've helped well over a hundred people who were having problems because they didn't properly test the stability of their overclocked system. So, what was the way they tested? The way that you described: only about 30-60 minutes. Each and every single time that I finally convinced the person to stabilize their system for a 24-hour Custom Blend run, their computer problems went away completely. Go figure.


Edited by TwoCables - 10/25/15 at 9:13pm
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post #37 of 61
In my opinion. There is no best stress testing tool. You should use multiple stress testing tools such as Aida 64, gaming and other such things such as Web browsing, watching videos and etc. That's what I do to test my over clocks. Your mileage may vary though.

I have a question for you guys. Is it Ok to do an 24 hour aida 64 stress test with 90C core temperatures at start?
Edited by benjamen50 - 10/25/15 at 9:48pm
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post #38 of 61
Quote:
Originally Posted by TwoCables View Post

This is absolutely not true. Let me share one of my experiences with you:

When I was new to overclocking, I was told that if my computer could run Prime95 for 9 hours then I would be 100% stable. So, I did that. It was stable for all 9 hours and then I went about my business. Not long after, I started seeing instability in various forms. I didn't get any lock-ups or BSODs, but instead I was having problems with some of my favorite programs. Sometimes it was a visual glitch, other times it was just unwanted behaviors or things that seemed like bugs. So, I asked about it and I was told by a different person that I should've run Prime95's Small FFTs test, and that it should be for 12 hours - that the previous advice that I was given was bad.

So, I got to work and started Prime95's Small FFTs test and tried to let it go for 12 hours. At about 10 hours into it, it failed. So, I increased my core voltage and made some other recommended changes, and then it passed right through the 12th hour no problem and I even made it to nearly 14 hours but I grew impatient and I just wanted to use my computer. After that point, I had no more problems.

A few months later though I encountered some new unwanted behaviors in some of my programs. I assumed that it was instability and sure enough, Prime95 failed shortly after that 14-hour mark. So, I tweaked my settings some more and this time it went for 24 hours and beyond with no problems. From that day forward, I had a perfectly stable computer.

Fast forward to my sig rig, and I set my goal right off the bat for 24 hours of Custom Blend (because the CPU has an IMC) using about 85% of my memory, and my computer has been absolutely problem-free since July of 2011.

Here's something else: during my time on OCN, I've helped well over a hundred people who were having problems because they didn't properly test the stability of their overclocked system. So, what was the way they tested? The way that you described: only about 30-60 minutes. Each and every single time that I finally convinced the person to stabilize their system for a 24-hour Custom Blend run, their computer problems went away completely. Go figure.
I tried 21 hours of stress on 4300 without failiure occt
post #39 of 61
Quote:
Originally Posted by Iwamotto Tetsuz View Post


I tried 21 hours of stress on 4300 without failiure occt

 

Ok then 30-60 minutes of what test?

 

Which test did you use in OCCT?

 

There are tons of variables to consider here.

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It's a computer!
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Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #40 of 61
Quote:
Originally Posted by TwoCables View Post

Ok then 30-60 minutes of what test?

Which test did you use in OCCT?

There are tons of variables to consider here.
Yes large dataset occt, If you go to my post soundless devil and go though it you will see the post of the stress 21hours
CPU dosen't run on mid or small data set at the time it will fail the test (probally temps to high)
and it wasn't stable one vcore is below 1.608v
it will fail within 5minutes
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