OCUK Sandy Bridge, SB-E and Ivy Bridge 5GHZ Club

I stand by what I have said but will qualify the statement and make it specific only with regard to my board and BIOS. Gigabyte UD7 and Bios F7e.

I can not speak of any other configuration nor even for Gigabyte and the other boards or bios version.

LLC2 is aimed at the bencher who needs to have 100% CPU for the entire session. If that has been changed in subsequent revisions then good and well. Personally I will not be using LLC2 for 24/7 usage. And that is from the person with a 120l tank of LN2 outside her back door.
 
Thanks for the advice. I found this thread over at xtremesystems which I thought was interesting - one person mentioned it might be dangerous but no-one else. I also learnt that LLC2 raises voltage at load, LLC1 is idle. I don't understand why you'd want more voltage at idle?

In any case, I'll raise my voltage and drop back to LLC1 and hopefully I can find a happy, prime stable, 24x7 running medium :)
 
gurusan said:
Pretty sure I have my rig stable 5GHz 1.308V on air with temps maxing 72C.

What's the general consensus for a stable sandy bridge system? 8hrs prime? IBT?
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I'd do LinX all memory for say 30+ runs first as that picks up problems quicker than Prime I find. Then move on to long runs of Prime95 and 3DMark loops to ensure system complete stability, 8 hours is more than enough. Bit of Folding@Home wouldn't hurt either!! Lol
 
When you guys are quoting voltages, do you quote the ones from the BIOS settings or the one showing in CPU-Z/HWMonitor?

The reason I ask is before I was running 1.425ghz/LLC2 which showed at 1.45V in HWMonitor. Now I'm running 1.5V, LLC1 and showing as 1.46V (and still not stable, WTF?). 1.495V showed at 1.43V (definitely not stable).

I'm not sure what V to believe now. I don't have a multimeter to check either. I'm tempted just to stick it back to LLC2 on the lower voltage and leave it running on that, against certain advise.
 
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Mnemonik said:
When you guys are quoting voltages, do you quote the ones from the BIOS settings or the one showing in CPU-Z/HWMonitor?

The reason I ask is before I was running 1.225ghz/LLC2 which showed at 1.45V in HWMonitor. Now I'm running 1.5V, LLC1 and showing as 1.46V (and still not stable, WTF?). 1.495V showed at 1.43V (definitely not stable).

I'm not sure what V to believe now. I don't have a multimeter to check either. I'm tempted just to stick it back to LLC2 on the lower voltage and leave it running on that, against certain advise.
Click to expand...

Your voltage levels are so low as not to make any difference. When you are pushing 1.650 + volts then I guess LLC2 is an issue.

Go for it.
 
Speed said:
I'd do LinX all memory for say 30+ runs first as that picks up problems quicker than Prime I find. Then move on to long runs of Prime95 and 3DMark loops to ensure system complete stability, 8 hours is more than enough. Bit of Folding@Home wouldn't hurt either!! Lol
Click to expand...

Not on these chips in my experience. Prime blend will uncover problems allot quicker than IBT/Linx/

gurusan said:
Well I passed IBT 8gb for 10 runs so far....and played SC2 and Crysis 2 for a few hours and so far all is good.
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As above mate. I was IBT/Lynx stable for 1 hour but after 10 mins on Prime blend - BSOD. Obviously everyone has their one version of stable, but blend in my case was the best measure.
 
Can i join too please? :)



Vcore acc to everest was 1.42v but was set to 1.45v in bios

Few settings to play with i think as this was tommytinkles chip and he had it doing 5GHz at a lot less.

Suicide run of course :)
 
Hey Mate,

Glad to see its working (Please update trust!) You definately don't need that much voltage on it to get 5Ghz, iirc I had it at 1.36 or thereabouts?

How are your temperatures?

Cheers
 
Just realised that everest doesnt read my voltages right either just like all cpu-z versions just now :(

Didnt check what it was showing in the bios for that but was priming at 4.7 with it set 1.44 in bios and that gave 1.38v so could probably come down a lot yet.

Temps fine at around 60c. using a TR Archon but board isnt in case yet as thats not arrived.

Had a few issues with making small changes in the bios then it refusing to boot. Nothing to do with overclocking either just things like changing the fan profile can causeit :(

Switch off and leave a few mins and then it will start fine...just a bios issue i guess.
 
knock knock :)
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