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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 83

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post #821 of 9531
Quote:
Originally Posted by bigal1542 View Post

So you wouldn't worry about WHEA errors at all? I only ask because I am stable except for that fact frown.gif
Also, it seems that the voltage fluctuates a bunch at max, and that the WHEA errors correlate with the times where it drops. For example, here are my specs now:
Multi: 45
Offset: -10
LLC: 2
PLL 1.799
Turbo Volts: 0.004
I get an idle voltage of 0.98V and a load voltage that fluctuates between 1.224 and 1.248V. Is there any way to make it fluctuate less? I am getting WHEA errors at these settings.

I've found the exactly specs of my rams :
Model Number : OCZ3P16002G
Timings : 7-7-7-20
Freq. : 1600 Mhz
Voltage : 1.9v

Currently they are running at 1333 7-7-7-20 with voltage "auto" (monitor tab shows 1.56v); and so if i would increase voltage insn't a good idea ??
Therefore i must leave this settings or change rams....
post #822 of 9531
Thread Starter 
Quote:
Originally Posted by simonefavano View Post

I've found the exactly specs of my rams :
Model Number : OCZ3P16002G
Timings : 7-7-7-20
Freq. : 1600 Mhz
Voltage : 1.9v

Currently they are running at 1333 7-7-7-20 with voltage "auto" (monitor tab shows 1.56v); and so if i would increase voltage insn't a good idea ??
Therefore i must leave this settings or change rams....

The max you can go is 1.65v. Past that and you risk damaging the CPU and/or motherboard. The RAM chips you have are, by its standards, not compatible with Sandy / Ivy Bridge. cryingsmiley.gif

Either reduce the timings / frequency to be stable with 1.65v or (what I would do) get new RAM chips that require only 1.5v. thumb.gif

Quote:
Originally Posted by bigal1542 View Post

So you wouldn't worry about WHEA errors at all? I only ask because I am stable except for that fact frown.gif
Also, it seems that the voltage fluctuates a bunch at max, and that the WHEA errors correlate with the times where it drops. For example, here are my specs now:
Multi: 45
Offset: -10
LLC: 2
PLL 1.799
Turbo Volts: 0.004
I get an idle voltage of 0.98V and a load voltage that fluctuates between 1.224 and 1.248V. Is there any way to make it fluctuate less? I am getting WHEA errors at these settings.

Try putting the LLC down to 3 and/or increasing the turbo volts (it affects only max).

Make sure that the negative offset is not giving you the errors during idle.
Edited by kennyparker1337 - 6/21/12 at 1:36am
post #823 of 9531
Run the memory at 1866, 1.65v

It should run.
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post #824 of 9531
Awesome stuff OP, it's great to see an OCing guide that's clear helpful and not a wall of text biggrin.gif
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post #825 of 9531
Quote:
Originally Posted by kennyparker1337 View Post

Try putting the LLC down to 3 and/or increasing the turbo volts (it affects only max).
Make sure that the negative offset is not giving you the errors during idle.

Thanks for the tips. I have done a ton more work on the OC stuff:

I have been keeping a spreadsheet with the OC attempts I have done today. I have omitted any redundant stuff, so if something doesn't work on the sheet, you can assume that the voltages below it don't work either. I have them in mine being that I picked a starting point and if I didn't get it stable, I increased until I got a boot and those are in the sheet.
Spreadsheet (Click to show)
345

I have it color coded for ones that passed. The ones in black failed. Note that a TON of sets ran fine for the original 10-15 minute tests I was running but they ALL crashed at 25 minutes of Prime95.

For the max voltage, the lowest number is the minimum voltage I saw on load, the middle is the most common voltage I saw, and the highest is the absolute max. The voltage fluctuated a bunch at load, is this normal? I noticed that WHEA errors coincided with the times that the voltage would be at the low end of the load values. Is there any way to make it fluctuate less? Note that I started doing this later on in trials, the earlier ones just show max or the range.

For the times, if it was stable, I wrote the time it was stable for, and the time I ran each FFT.

I stopped at 45 for a multiplier because I didn't want to push too much voltage through this chip, as I would like it to last a few years. What is a safe voltage to have it on load for it to last that long?

Where would you guys go from where I am now? That last run actually just finished and ran 30 minutes without problems.

I know there are tons of questions in this post, but I would really really appreciate it if you could answer them all smile.gif

Thanks again,
Big Al




EDIT:

Wondering if anyone can help here... So what is the best way to quick decide if a clock is stable? I am looking for a 10-30 minute test.

Currently, I am doing Prime95 27.7 with 4 threads and 90% of my available memory. I have each FFT running 2 minutes instead of 15, thinking that I can get through more tests in the same amount of time.

The only problem I have, is that every clock I have tried so far is running into problems and fits into one of the three categories:
- WHEA errors, Prime95 runs fine until 25 minutes
- No WHEA errors, Prime95 runs fine until 25 minutes
- Any sort of crash, no start, or BSOD

I find it odd that EVERY time Prime95 crashes, it occurs just before 25 minutes of testing (24:30ish). It always gives the error "Prime95 has stopped responding". I have not once gotten any Prime95 error other than the stopped responding.

Note: I did try my stock settings, and Prime95 runs for 30 minutes on my settings.

Should I change any of my settings? Is there something I am doing wrong that is making Prime95 to stop responding at the exact same time in each test?
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post #826 of 9531
Thread Starter 
First, try reinstalling prime95. OR redownloading it.

Then I would leave everything default and only change "Memory to use (in MB)". Don't change the FFT run-time.

Then run the test again with stock settings (33 multiplier etc. etc.). IF it still crashes then with a WHEA error, then I'm thinking it must be an actual hardware piece gone bad.

Get some testing programs and test your HDD / SSD. Test your RAM.
post #827 of 9531
Quote:
Originally Posted by kennyparker1337 View Post

First, try reinstalling prime95. OR redownloading it.
Then I would leave everything default and only change "Memory to use (in MB)". Don't change the FFT run-time.
Then run the test again with stock settings (33 multiplier etc. etc.). IF it still crashes then with a WHEA error, then I'm thinking it must be an actual hardware piece gone bad.
Get some testing programs and test your HDD / SSD. Test your RAM.

It is stable for 30 minutes at the 44 multiplier near the bottom as well as the stock settings for Prime.

I will try reinstalling and running it at those settings again. Thanks!

I am pretty sure my hard drive and memory are stable, as I have passed MemTest and haven't had any SSD benchmarking problems.

If I want to use the processor for 4 years or so, what is the highest voltage you guys would recommend?

Thanks!
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post #828 of 9531
Thread Starter 
Quote:
Originally Posted by bigal1542 View Post

Quote:
Originally Posted by kennyparker1337 View Post

First, try reinstalling prime95. OR redownloading it.
Then I would leave everything default and only change "Memory to use (in MB)". Don't change the FFT run-time.
Then run the test again with stock settings (33 multiplier etc. etc.). IF it still crashes then with a WHEA error, then I'm thinking it must be an actual hardware piece gone bad.
Get some testing programs and test your HDD / SSD. Test your RAM.

It is stable for 30 minutes at the 44 multiplier near the bottom as well as the stock settings for Prime.

I will try reinstalling and running it at those settings again. Thanks!

I am pretty sure my hard drive and memory are stable, as I have passed MemTest and haven't had any SSD benchmarking problems.

If I want to use the processor for 4 years or so, what is the highest voltage you guys would recommend?

Thanks!

If you really want to play it safe then 1.4v.
Otherwise I would still recommend 1.5v.

Most of us plan on using our CPU for the years to come also. So we don't just use 1.5v and say "well I'll just get rid of it in a year". 1.5v should be just fine for 4 years.

But on the contrary... no one is exactly sure as SB / IB hasn't been out for 4 years. So since the max is 1.55v, I think 1.4v would net you a decade of use. And trust me... you'll have upgraded by then.
post #829 of 9531
Quote:
Originally Posted by kennyparker1337 View Post


If you really want to play it safe then 1.4v.
Otherwise I would still recommend 1.5v.
Most of us plan on using our CPU for the years to come also. So we don't just use 1.5v and say "well I'll just get rid of it in a year". 1.5v should be just fine for 4 years.
But on the contrary... no one is exactly sure as SB / IB hasn't been out for 4 years. So since the max is 1.55v, I think 1.4v would net you a decade of use. And trust me... you'll have upgraded by then.

Sweet thanks for the info! I will prolly kick up the voltage above the 1.2V that I am at now.
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post #830 of 9531
prime is kind of based on long testing periode(10+ min per fft) though. you would get your cpu more stable running the FFT's that give these processors most problems like the small FFTS(8k, or just the small fft test, 2688k, 1344k, 1792k). if you want to test in 30 mins i guess best would be to run IBT or Linx for 30 mins( on 2gb-4gb mem) and look if your gflops are not deviating more than 2 gflops per run and check for whea errors. if you want to assure stability your going to have to test for longer though.
Edited by punceh - 6/21/12 at 11:26pm
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