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[SOLVED] Need help with running a stable system on STOCK clocks - Prime95 failing - Page 3

post #21 of 50
Thread Starter 
Went into the Bios - and here is how it looks like now.
I set BCLK to 100 manual
And I set RAM voltage to 1.55
And I set bus speed to ram 1:1

There is one thing that really interests me, and surprised me.
The COMMAND RATE of the ram - I used to have as corsair advise at 2N.
This time around I went into the bios and it was set to AUTO.
Could it be the command rate being set to 2N, causing the problems?

I can try in several hours, to see if the board didn't like 2N command rates:



post #22 of 50
Quote:
Originally Posted by Totally Dubbed View Post

I'll look into that, but I think it is set to 100 in the bios :/

Disable spread spectrum wink.gif

Some motherboard manufacturers play with the baseclock a bit to end up higher in the benchmarks.

I applaud your thorough testing methods though. It could be possible that your IMC needs a bit more juice for the 4 sticks. Although at 1600 I wouldn't have expected a problem.
It could just be a bad stick of RAM but it's weird that Memtest doesn't give errors (but bow I think of it, Memtest hasn't been as reliable for me on Intel as it was on AMD. )
Tried a SuperPi 32M run on that single stick ? I kinda like superPI 32M for quick and dirty RAM testing.

I can confirm the faulty 12V line readout from HWMonitor as well, don't worry about it.

EDIT:
Weird, can't see spread spectrum in your BIOS or VccIO voltage. Doesn't IB have a VccIO voltage?

Your RAM is set to 2T (or 2N) according to your BIOS. I wouldn't overvolt the RAM that much. I've found more isn't better on SB, likely the same for IB.

Additionally: Disable throttling for now. (C-states under CPU management)
Edited by Bloitz - 10/29/12 at 1:55am
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post #23 of 50
Quote:
Originally Posted by Totally Dubbed View Post

Went into the Bios - and here is how it looks like now.
I set BCLK to 100 manual
And I set RAM voltage to 1.55
And I set bus speed to ram 1:1
There is one thing that really interests me, and surprised me.
The COMMAND RATE of the ram - I used to have as corsair advise at 2N.
This time around I went into the bios and it was set to AUTO.
Could it be the command rate being set to 2N, causing the problems?
I can try in several hours, to see if the board didn't like 2N command rates: Warning: Spoiler! (Click to show)






You have the CPU in Offset mode...Set it to Auto and check. Leave Ram volts at 1.55v.
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Hard DriveHard DriveHard DriveCooling
Corsair 480GB LE 3TB WD Green Sammy 500GB 850 EVO H100i 
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post #24 of 50
I've had similar issues. My problem was that I was mixing two sets of 2x4GB sticks (instead of one certified 4x4GB set)

The sticks are the exact same model (Corsair CML8GX3M2A1600C9W), bought all together at the same time.

However, I didn't pay attention when plugging them in and mixed one stick from one set, with a stick from the other set, in dual channel.

This lead to several random failures when running at the certified XMP profile. After taking them out and testing them individually, I managed to determine which stick came with which and haven't had a problem ever since.

EDIT: Not saying your problem is similar to mine. Just throwing out my own experience so you can decide for yourself whether this can be helpful or not smile.gif
post #25 of 50
Thread Starter 
Quote:
Originally Posted by Bloitz View Post

Disable spread spectrum wink.gif
Some motherboard manufacturers play with the baseclock a bit to end up higher in the benchmarks.
I applaud your thorough testing methods though. It could be possible that your IMC needs a bit more juice for the 4 sticks. Although at 1600 I wouldn't have expected a problem.
It could just be a bad stick of RAM but it's weird that Memtest doesn't give errors (but bow I think of it, Memtest hasn't been as reliable for me on Intel as it was on AMD. )
Tried a SuperPi 32M run on that single stick ? I kinda like superPI 32M for quick and dirty RAM testing.
I can confirm the faulty 12V line readout from HWMonitor as well, don't worry about it.
EDIT:
Weird, can't see spread spectrum in your BIOS or VccIO voltage. Doesn't IB have a VccIO voltage?
Your RAM is set to 2T (or 2N) according to your BIOS. I wouldn't overvolt the RAM that much. I've found more isn't better on SB, likely the same for IB.
Additionally: Disable throttling for now. (C-states under CPU management)


I currently have ibt running, and hopefully when I get back to my pc in 3hrs, it would have finished 20 flops.
Thanks for the feedback. If it fails, I'll look into disabling throttling, and I'll stable spread spectrum as suggested.
I just left everything to stock, in order not to interfere with the testing. Thus to eliminate human error in testing.

As for the voltages: don't know about those. I haven't seen them.
In my Sig, I got full bios settings. Maybe you might be able to see it?

Also for the 2n - I know the auto is 2, but maybe at times it wanted to go to 1 for some reason, and thus failed?
I was getting rounding errors on p95 a lot. 0.4 when it was expected at 0.5.

+rep for you bro!
Quote:
Originally Posted by eXXon View Post

You have the CPU in Offset mode...Set it to Auto and check. Leave Ram volts at 1.55v.

I have the cpu on offset?
Oh looks like it.
That's bios, stock defaults. I haven't touched it. But I'll change it if needs be.
Quote:
Originally Posted by Gauvi View Post

I've had similar issues. My problem was that I was mixing two sets of 2x4GB sticks (instead of one certified 4x4GB set)
The sticks are the exact same model (Corsair CML8GX3M2A1600C9W), bought all together at the same time.
However, I didn't pay attention when plugging them in and mixed one stick from one set, with a stick from the other set, in dual channel.
This lead to several random failures when running at the certified XMP profile. After taking them out and testing them individually, I managed to determine which stick came with which and haven't had a problem ever since.
EDIT: Not saying your problem is similar to mine. Just throwing out my own experience so you can decide for yourself whether this can be helpful or not smile.gif


Thanks for the input. But no, this doesn't apply for me. Had my doubts of my ram being different though lol.
Each time I googled around, a lot of the results, came back to ram, and some were like you: mixing ram.


I have tried almost everything, thus why I'm lost.
Hopefully with the input of the lads above, I can get this working.
post #26 of 50
Your command rate should be 1N, not 2N for those timings. Also your Vcore voltage should be set to manual and not offset, offset is for when you truly reach super stability!
post #27 of 50
Thread Starter 
Quote:
Originally Posted by Systemlord View Post

Your command rate should be 1N, not 2N for those timings. Also your Vcore voltage should be set to manual and not offset, offset is for when you truly reach super stability!

1n from what I read is faster, and better, but also unstable especially with the vengeance.
So I don't know about that bro.
As for cpu offset, I would have agreed if it wasn't the fact that, this is what comes out the box, stock, factory defaults.
Although wouldn't surprise me, Asus making my life harder....
post #28 of 50
Quote:
Originally Posted by Totally Dubbed View Post

1n from what I read is faster, and better, but also unstable especially with the vengeance.
So I don't know about that bro.
As for cpu offset, I would have agreed if it wasn't the fact that, this is what comes out the box, stock, factory defaults.
Although wouldn't surprise me, Asus making my life harder....

You might try 1.15 volts as that should be more than enough unless you are x2 unlucky! wink.gif

I would contact manufacture and try and get replacement for four matched modules!
post #29 of 50
Thread Starter 
Quote:
Originally Posted by Systemlord View Post

You might try 1.15 volts as that should be more than enough unless you are x2 unlucky! wink.gif
I would contact manufacture and try and get replacement for four matched modules!


Knowing my luck...lol
post #30 of 50
Thread Starter 
Would you look at that biggrin.gif!!!
20 gflops (well more than I used to do - ALL PASSED)
I can safely say it was BIOS then for the IBT - 1.55 and/or the command rate on auto.

Time to prime stock now, custom blend - 90% ram



IntelBurnTest v2.54
Created by AgentGOD

Processor: Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz
Clock Speed: 3.51 GHz
Active Physical Cores: 8
Total System Memory: 16331 MB

Stress Level: Maximum (14094 MB)
Testing started on 29/10/2012 08:51:35
Time (s) Speed (GFlops) Result
[09:02:27] 558.601 91.1130 3.194502e-002
[09:13:21] 558.965 91.0536 3.194502e-002
[09:24:11] 558.549 91.1215 3.194502e-002
[09:35:01] 558.786 91.0829 3.194502e-002
[09:45:52] 558.469 91.1346 3.194502e-002
[09:56:42] 558.220 91.1752 3.194502e-002
[10:07:33] 558.287 91.1643 3.194502e-002
[10:18:23] 558.143 91.1878 3.194502e-002
[10:29:14] 558.125 91.1907 3.194502e-002
[10:40:04] 558.393 91.1470 3.194502e-002
[10:50:55] 558.331 91.1572 3.194502e-002
[11:01:46] 558.416 91.1432 3.194502e-002
[11:12:37] 558.449 91.1378 3.194502e-002
[11:23:27] 558.530 91.1246 3.194502e-002
[11:34:18] 558.426 91.1416 3.194502e-002
[11:45:09] 558.485 91.1320 3.194502e-002
[11:56:00] 558.534 91.1239 3.194502e-002
[12:06:50] 558.670 91.1017 3.194502e-002
[12:17:41] 558.489 91.1314 3.194502e-002
[12:28:32] 558.479 91.1330 3.194502e-002
Testing ended on 29/10/2012 12:28:33
Test Result: Success.
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Overclock.net › Forums › Intel › Intel CPUs › [SOLVED] Need help with running a stable system on STOCK clocks - Prime95 failing