Does this seem right?

PH4NT0MBL4DE · 5 May 2013 at 11:18

I got around to overclocking my i5 ivy last night to 4.5ghz with 1.190 vcore stable for 2hr+ on occt. However I have 2 questions that are worrying me.

When I use CPU-z it reads my vcore as 1.200-1.212 vcore when I'm at full load. Why is this? I set llc to extreme so should that stop this jumping so high?

When I read the graphs from my occt results, on the clock frequency graph it shows my clocks dropping down for a few seconds every 10mins. Is my CPU throttling? Or is this how occt works?

I have turned off all the speed step stuff in the bios and the other option that causes you CPU to throttle when temps get to high.

If you need more info I can post the graphs up later and find out what I have turned on and off in the bios.

Thanks

areksnumbr1sxylady · 5 May 2013 at 11:29

what are your temperatures?

PH4NT0MBL4DE · 5 May 2013 at 11:31

The hottest core is 78 max and the rest are low 70s.

Also this if set to a fixed voltage.

areksnumbr1sxylady · 5 May 2013 at 11:35

PH4NT0MBL4DE said:
The hottest core is 78 max and the rest are low 70s.

well that aint exactly good is it :rolleyes:

you overclocking on stock cooler or something? That said, 3570k wont throttle till it reaches around 100c mark... But that surely by far is not healthy.

PH4NT0MBL4DE · 5 May 2013 at 11:57

I no its not the best temps. I have an 212 evo. But I'm in a small room under the stairs. But I just thought as long as I keep it under 80c in occt I should be ok because gaming shouldn't make it as hot as that.

Does it look like my cpu is throttling? If so what could be causing it as I don't think it's the temp as I'm sure I turned the temp throttling off in the bios?

wazza300 · 5 May 2013 at 11:57

you should use less llc to stop voltage going so high

it depends on the software/stress program,every now and again it will back off on the stressing ready for the next stress stage

same as ibt and prime95

mmj_uk · 5 May 2013 at 12:25

Like wazza says if the voltage increases under load then you have the LLC set too high, ideally you should use the option with the least amount of droop under load.

PH4NT0MBL4DE · 5 May 2013 at 14:26

Ok I have set llc to high and my cpu idles at 1.188v ( I set it to 1.190v ) and fluctuates between 1.188v to 1.200v which so far seems much better as temps seem better (hottest is in low to mid 70c ) just gotta see if it's stable.
Also I just checked and is wasn't the cpu frequency fluctuating. It is the cpu usage that drops to about 75% for a few seconds every 10 -15 mins. Is this normal?

Thanks for your help so far guys. It's much appreciated.

wazza300 · 5 May 2013 at 14:35

test with intel burn test 5 runs on standard and see if cpu usage drops once it finishes one run

what board are you using? you can improve voltages and temps even more if you use an offset/dvid cpu voltage rather than a fixed

PH4NT0MBL4DE · 5 May 2013 at 14:50

How do I use these offset/dvid. Like say at the moment I'm running my CPU at a 1.200vcore with high llc which keeps it solid at those volts. So do I drop the vcore down abit and add some offset?
Thanks

O and I'm using a z77-d3h gigabyte board

wazza300 · 5 May 2013 at 15:00

you have to set cpu voltage to normal in the cpu voltage list

then try with medium llc and maybe +0.005v dvid or +0.010v,then see how much cpu voltage is being used at load

turn on all power saving in the bios aswell

PH4NT0MBL4DE · 5 May 2013 at 15:07

When you say CPU voltage do you mean vcore.
And when you say set it to normal do you mean auto so my motherboard regulates the vcore? Sorry I'm a complete newb, but I am learning so much lol.

wazza300 · 5 May 2013 at 15:25

yeah I meant cpu vcore

set it like this

and llc/pwm phase and vcore volt response to this,it improves stability whether oc or not

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wazza300 · 5 May 2013 at 15:26

yeah I meant cpu vcore

set it like this(you might be able to use less dvid later)

and llc/pwm phase and vcore volt response to this,it improves stability whether oc or not

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PH4NT0MBL4DE · 5 May 2013 at 15:30

Ok thanks mate. So if I set those settings on my bios. Then change my offset to something like +0.020 or is that to much? Do I have to drop my clock ratio back to stock and work up or can I leave it at 4.5ghz and change all these settings without to much trouble?
Thanks for your help mate

wazza300 · 5 May 2013 at 15:33

+0.020 might be too much start low and see how you get on and add one click/retest and so on

each llc level will affect cpu load voltage aswell,thats ontop of what dvid applies so be carefull how much you add

for 4.5ghz I would try high llc and +0.010v dvid,then see what cpu load voltages are like and adjust if need be

doyll · 5 May 2013 at 15:39

Sorry to interrupt but I have to give Wazza a big "Man you amaze me every time you overclock" And you to Blade... It's all Greek to me

I can make things cool but overclocking Harry Potter stuff to me.. and I have no wand.

PH4NT0MBL4DE · 5 May 2013 at 15:40

I can't set vcore to normal. Only auto. And dvid is greyed out. Do I need to turn a setting on to enable this. I can't find offset lol.

wazza300 · 5 May 2013 at 15:42

PH4NT0MBL4DE said:
I can't set vcore to normal. Only auto. And dvid is greyed out. Do I need to turn a setting on to enable this. I can't find offset lol.

you have to look in the cpu vcore voltage list,where it says auto you'll see normal,then dvid is unlocked for adjustment,all gigabyte boards are the same apart from the ultra cheap ones

wazza300 · 5 May 2013 at 15:44

doyll said:
Sorry to interrupt but I have to give Wazza a big "Man you amaze me every time you overclock" And you to Blade... It's all Greek to me I can make things cool but overclocking Harry Potter stuff to me.. and I have no wand.

you should tinker on your board,you can use dvid aswell,all it does is add cpu voltage when under load and allows cpu to downclock at idle

fixed cpu voltage wont allow idle volts and auto usually overvolts things more than they need