Safe Vcore and temp for i5 3570k

Jenkinio

Jenkinio

Jenkinio

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21 Feb 2011
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I'm progressively OCing my i5 3570K by increasing amounts and was just wondering what a safe/sustainable core temperature and Vcore is? This is my first ever OC so expecting sparks and smoke soon :)

I've currently worked up to 4.2ghz, Vcore 1.16, and core temps ~60C at 100% load, which I believe is well within safe levels.
 
Looks like you have plenty of head room there.
Keep temps below 80c and about 1.35v vcore for everyday running
My chip is nowhere near as good as yours,i run [email protected],above thati need lots of vcore and temps go high
You should easily do 4.5ghz with yours
 
Got it up to 4.5ghz and it seems stable so far, but still more testing to do.

Vcore is 1.22 and the temp on my warmest core is going no higher than 77C under maximum load.

In IBT I'm getting Gflop values of ~126. Is this any good?
 
Jenkinio said:
Got it up to 4.5ghz and it seems stable so far, but still more testing to do.

Vcore is 1.22 and the temp on my warmest core is going no higher than 77C under maximum load.

In IBT I'm getting Gflop values of ~126. Is this any good?
Click to expand...

that seems about right keep it under 80c for everyday use
 
@ jenkinio + Everyone :)

U said your vcore was at 1.22 ( set manual in the bios ?) is that also at full load or does it change under loads of course when it de-clocks u see less MHZ and less vcore ?? I ask because ive got the same kinda overclock 3770k @ 4.5 with same vcore 1.220v set in manual mode in bios with same temps to the degree hahah hottest core 77 in core temp running prime95 but under load vcore drops to 1.200 is that really bad?? I have got LLC set to high and phase power set to extreme to get these results, if however I change the LLC to extreme aswell I hit 1.300 which is overshooting for my 1.220v set in bios...how do I combat this ?

Thanks

Dan
 
you need to learn to use offset or dvid voltage rather than a fixed amount

enable all power saving states in the bios and pick low llc level and maybe -0.020v dvid/offset so that it takes off that amount of voltage/undervolts from the stock cpu vid set by intel

adjust if its still to high so more negative offset or less if its too low
 
I will set to offset when ive found the correct/stable vcore...like vcore is at 1.2200 and my VID is 1.2009 so I can kinda see what offset I will need but would like to know how to stop vcore dropping under load and not using LLC because like I said in other msg @ high its under and extreme is over, I left it on high because it was still closer to the voltage I set in bios..like 1.220 Ive set and it drops to 1.208 under full load on LLC high but on extreme LLC under full load it goes 1.300...if u hadn't noticed im new to all this but hungry to learn this black art business, thanks for reading.

oh and how to u get a signature spec of your machine on here i.e

CM 690 3770k
bla
bla
bla
bla
partridge in a pear tree >?
 
it doesn't matter how much it drops under load aslong as its stable,just lower vcore or offset slightly or raise it,same with llc level

higher llc means youll probably need a lower offset and vice versa

sigs can only be 4 lines deep
 
ok thanks for the info ...weirdly when I run aida64 the VID is 1.2159 so I might be closer than I thought on 1.220v set in bios I will play abit with offset when I understand it fully because right now I don't think I know enough :(.. thanks again wazza !
 
Is Ivy supposed to take less volts that Sandy? I thought they were the same? (somewhere between 1.38 and 1.42 being the safe maximum, depending on temps etc)
 
I think Intel Recommends 1.4v as a maximum which most people wouldnt mind using for benchmakring etc, but or 24/7 use most people recommend 1.35 max. For 4.6 ghz i need about 1.4v which i dont mind using when im benching, but most of the time i use 4.5 at 1.35.
 
Tempted to try pushing up to 4.6ghz... looks like I have a good chip and still some room to spare... (watch this space for my next thread, titled: "pushed it too far, blown my rig up!").
 
Jenkinio said:
Tempted to try pushing up to 4.6ghz... looks like I have a good chip and still some room to spare... (watch this space for my next thread, titled: "pushed it too far, blown my rig up!").
Click to expand...

You will be fine :p

My 2500K was at 4.6GHz with 1.377v when I stripped my rig down. The board wasn't the greatest, so I bought a new one, and I have most of the parts for a custom loop sitting here, and I fully intend on trying for 5.0GHz 24/7 stable even if I have to push 1.425v (the absolute maximum i'm 'happy' to use).

If anyone is going to post a "why is my PC on fire?" thread its probably me :D
 
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