core i5-3570k overclocking help needed!

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misfitkid86

misfitkid86

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May 23, 2012
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hey all, i have an intel core i5-3570k cooled with an corsair h100i and running at 4.3 (stable on intel burn test) i have not overvolted now or ever, i would like to push 4.5-4.7 if possible but wondered how to safely overvolt? i have a gigabyte z77-d3h motherboard with eight fans in my case. with this said how should i proceed? or SHOULD i proceed!? any input would help, still a bit of a noob. thanks!
 
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euphoria4949
Yes and yes =)

Auto voltage is never a good idea, auto voltage is an easy way for a motherboard manufacture to guarantee even the worst CPU will run stable, it works by pumping an extreme high, well a very high amount of volts into your CPU. Example, by MoBo will pump 1.35v into my chip on auto even if I'm at stock, no OC. So my temps are sky high.

If you now have your vcore set to Manual and you're under 1.2v, then yes your temps are still a bit high. There really is no harm is reseating your cooler to be sure. Read my post above about how to check the TIM (Thermal Paste) to see if you had too much, not enough or just bad contact.

As I said before no chip is alike, but as a point of reference my 3570k OC'ed 4.5 @ 1.3v stays under...
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I would try first with 4,5 GHz. I would put the max voltage that intel recommends and then try to increase the multiplier as far as possible. Don't forget that you can increase the BCLK up to 105MHz - in this matter you have to try to increase incremental to find optimal. At the current frequency you would get 4,515GHz, 215MHz increase.

You will also need to keep the temp in mind as IVY-B have heat issues when the voltage is increased. Just google "i5-3570K heat issues"

Overclocking guide

thread with reviews and suggestions
 
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ok cool, what is the max voltage they (intel) recommend? i'll try a slight uptick in the bclk and go from there.
 
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From one the links that I provided it says that 1,52V (VCC aka Vcore) is the max recommended VCC/Vcore. I have also seen on youtube that one reached 4,4GHz at stock voltage (1,15V). Read the provided link and try out; each configuration, even with the same components, are different making ever case unique.
 
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so i should just tick up the multiplier first without bclk or anything else? also is there an easy way to just download cpu-z, it keeps asking me to burn it to cd.
 
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ok so i overclocked by just upping the multiplier to 4.4 and it's running stable, the problem is though that my bootup is slow all of the sudden! should i be upping voltage for this? or is it something else, also i seem to get random freezes when i go to my computer. suggestions?
 
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1.5v!!! :ouch: 1.5v is more commonly known as a "Suicide Run", meaning people who want to get the highest possible OC for benchmarking for bragging rights. Now there's nothing wrong with that, but that's just a short as possible run at 1.5v. For a 24/7 1.5v OC, you will need a SERIOUS custom water loop or maybe even LN2 or temps are going to hit dangerous levels in seconds.

If it helps at all, I have a 3570k OC'ed at 4.6Ghz @ 1.288v and LLC at V-High but my i5 does seem to be a little better than most. Unlike my 3770k which could be the worst chip I've ever had..... luck of the draw hey :-\

Take it slow, don't push passed 1.4v on a closed loop WC. Check Windows Event Viewer for Error 19 WHEA-Logs as you might think you are stable, but windows may tell you otherwise. Oh and although the TJ max for Ivy is 105c, that is meant as a max temp "spike", not constant temp. Keep it under 80c, 85c at a max if you have to.

Good luck pal, have fun =)
 
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yeah i have yet to touch my voltage, it seems to go up and down from 1.028-1.033 or thereabouts. if i am overvolting what settings should i tweak? again i went to 4.4 from 4.3 and my bootup was crap.
 
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Right, hold on let me get a bit more info so I can help you properly.

So at the moment your voltage is still set to "Auto" in your BIOS,
and you said you managed 4.3Ghz without changing the voltage, correct???
If that's correct that could be pretty good, but if you would like me to help you I would prefer to work with more info to make it easier and safer.

Ok, download CPUZ as mentioned above it's a must have for OC'ers, you will also need a monitoring app such as HWMonitor or HWInfo64, personally I prefer HWInfo64 but that's me. HWInfo will give you accurate readings of your temps (min, avge & max) load readings, all your systems voltages, RAM, GPU e.t.c... it will basically show you everything you'll need and some. Also download RealTemp or CoreTemp both are great I use RealTemp GT, this is just so you have 2 app monitoring temps in case one gives a bad reading you have a back up.

Once you have these apps you need to run IBT again on extreme setting at 4.3 and at stock voltage like you did last time. I also saw you asked if IBT was any good, well yes it is very good, so is Prime95 but I prefer IBT as it gives more feedback to stability/instability and temps are always a little higher with IBT over Prime95 especially if you test on Extreme setting which you should be doing. Showing the highest temps is a good thing as you know that normal programs, apps and games will never push your system as much as IBT does, so if your max temp with IBT is lets say 85c, you know games and apps won't push you past 75c which gives you a bit of headroom in case of a fan breaking or a seriously hot day. Also I've found that if you're very close to being stable but not quite there, Prime95 can take hours to show instability but IBT shows it fairly quick.

So just to recap, you have IBT already, so DL CPUZ, RealTemp and HWInfo64 or equal apps, have them all running at the same time, then start the burn test on extreme and run it for an hour or 2. I'm only saying an hour as you seem to have run it already, and you will need to run it again later as well.

When you have done this, write down all the temps readings (Idle and max temp under 100% load), your max and average voltage from HWInfo64, then we will go from there about pushing it safely higher and higher.

P.S. It's also a good idea to keep a thermometer in the room to monitor ambient temps. If you can, try keeping the ambient temp constant to get a true reflection of your temps.
 
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well, things are not as rosy as i had hoped! while running cpuz, hwmonitor64, and realtempgt, i ran intel burn test at max and my temps went up to 105c within a minute and my computer crashed! it looks as though my voltage was at 1.19 but was fluctuating a little bit. also it should be noted that i was running my h100i on balanced setting with stock fans.
 
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If this is a gaming build, 4.5ghz+ is rather excessive and won't help very much(4.5ghz is great as it is), and an h100i for 4.7ghz is pushing it.

Why risk damaging your processor for a couple extra frames in game? Stick with 4.3-4.5, don't go higher unless your running a custom loop.

Thought I'd throw that out there.
 
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totally, although by my most recent tests it seems 4.3 wasn't so stable! it's really just something i want to try, i would also like to overclock my ram, but don't have the slightest on how to do so. i've ticked my cpu back to 4.2 and will run some tests soon, i as of now am not seeing any difference in performance and if that's the case i am happy. also i may get a better motherboard sometime in the future which i assume might help push the cpu a bit more.
 
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i've got a bronze thermaltake toughpower xt 675w psu, with kingston hyperx blue red ram that's timed at 9-9-9-27. decent?
 
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rad, i'm going to run the test that failed last time at 4.2 and if it runs stable than i think i'll call it good. hell i don't want to buy a new system cause i fried it over a tiny overclock!
 
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