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Welp, I had a blue screen on Civ 5 earlier. It probably didn't happen all of the other times I've played it because this is the first time we've had turns go by constantly (so it had to calculate AI actions constantly). This friend was a lot faster going through the turns lol.
Anyway, I know it'll probably be fine at 1.31vcore, but honestly I don't really know what to do with anymore, so I just utterly reset it to stock for now.
Also, for giggles I tried running Prime95 28.1 totally at stock. Was hitting around 83C. I'm wondering if I put my Kraken X40 on there wrong. Maybe I need to redo the paste and stuff. For now I'm just gonna leave it at stock so I don't have to worry about it. Might do a modest boost up to 4.3 or so eventually, but 4.5 is apparently unattainable for me without going to 1.31 vcore, and that's probably not safe.
Oh well, crap luck in silicon lottery ho! Not that my luck is better in much else.
Nothing wrong with removing your CPU cooler to check how effective your thermal paste application was!
As long as you put it back on...
It's funny, they are one of few companies that protects users.Well what's interesting is that my MSI MPower actually tries to tell you to keep your vcore under 1.3. Out of all the companies, MSI is the one that's trying to keep you safe. Lol.
Well my 45 nm E7200 arrived with a sticker: "never exceed 1.25V". Considering these CPUs are using much smaller manufacturing technology, they should be more sensitive.Awesome response Dan, thanks.
EDIT* Found this:
45 Nanometer 1st Generation Core i ..... 1.40 Vcore
32 Nanometer 2nd Generation Core i .... 1.35 Vcore
22 Nanometer 3rd Generation Core i ..... 1.30 Vcore
22 Nanometer 4th Generation Core i ..... 1.30 Vcore
http://www.tomshardware.com/answers/id-1694551/safe-voltage-temp-4770k.html#11533981
I suppose I'll stick with 4.7 @ 1.300V for now. May drop to 4.6 just to give myself some headroom as I'm on adaptive voltage.
He would need to reapply thermal paste afterward to ensure perfect contact. (Also don't do that with Indigo xtreme. Things would become expensive really quickly.)Nothing wrong with removing your CPU cooler to check how effective your thermal paste application was!
Nothing wrong with removing your CPU cooler to check how effective your thermal paste application was!
Never ran Prime. Been running my system at 4.8 for quite a while and backed down last summer to 4.5 for daily use. I couldn't care less about Prime since my system has been rock solid at both 4.8 and 4.5 configurations running months on end without reboots. I only do gaming and browsing on my system so if that works, everything is fine.
Prime can suck it.
And this is with a 4770k cpu @ 4.8GHz?
This thread has made me finally realize i need to de-lid my 4770k. Now if i de-lid this CPU, will i be able to get higher than 4.3ghz? I remember hearing something about a certain percentage of these chips not being able to go over a certain mark. I'm not sure if that's due to heat issues (which i wasn't having) or it just plain won't go over 4.3 no matter what i do. Leave it alone or de-lid? If i de-lid and it doesn't work i'm just gonna pay the 25 bucks for the Intel Protection Program and pray i don't get another crap chip.
No it is with 2600K at 4.8 Ghz. I even ran it at 5.1 Ghz with 1.6 volts but I thought it was too much and I only gained like 50 3dmarks lol.And this is with a 4770k cpu @ 4.8GHz?
No it is with 2600K at 4.8 Ghz. I even ran it at 5.1 Ghz with 1.6 volts but I thought it was too much and I only gained like 50 3dmarks lol.
A good 4770K wouldn't need that much voltage for 4.5GHz. That kind of voltage would get you 4.7+ if you can keep it cool enough.
Mine needs 1.4v manual to reach 4700. I guess I have a crappy chip then? System rebooted after a couple hours with only 1.38v so I bumped it up and it's been running for over 10 hours of prime now. Is 1.4v unsafe for long term use?
I wouldn't run anything over 1.3v for long term use. As has already been stated that chip degradation has been seen in these chips with use of high voltage. If you can keep it at 4.5 with 1.3v or less I'd stick with that.
I wouldn't run anything over 1.3v for long term use. As has already been stated that chip degradation has been seen in these chips with use of high voltage. If you can keep it at 4.5 with 1.3v or less I'd stick with that.
I found this info but thought under water 1.4v might be ok. Guess I'll have to back off some then I left it priming while I'm at work so hopefully a 18 hour test won't kill it.
http://hardforum.com/showthread.php?t=1764817
I think 4600 took closer to 1.35v but I changed a few other settings too so I will have to go back and check. I was hoping to leave it at 1.4v and 4700 because it seems rock solid...Bummer. I got ahead of myself once I found a fairly stable 4500 OC and just moved on so I'm not sure the minimum voltage it will require yet.
+1
I was running 4.7 @ 1.305 but have since dropped to 4.6 @ 1.275 just to avoid degrading CPU.
I'm not missing those 100MHz at all and my temps are 3-5C lower due to knocking VCore down by 0.030V
Being "Safe under water" applies more to the operating temps than the affect of the voltage. Even if your CPU is running at 70C max @ 1.400V under load you are still pumping 1.4V through your CPU.
As Dan touched on above, VCore in excess of 1.3V can lead to degradation of the CPU. You could always purchase the Intel PTPP to cover your ass for 3 years in the event that your OC nukes the CPU.
http://www.intel.com/content/www/us...?wapkw=4th+generation+intel+core+i5+datasheet
This can't be right. Page 98 says between 1.5 and 1.86. No...Fucking...Way. And that is on the Gen4 Core datasheet. Maybe I'm not seeing the correct datasheet.
VID != VCore
In short, VID is the voltage the CPU is asking for, VCore is what it's actually getting.
Setting 1.86 VCore would quickly result in a nuked CPU.
Don't think the IPP covers de-lidding. Just FYI.This thread has made me finally realize i need to de-lid my 4770k. Now if i de-lid this CPU, will i be able to get higher than 4.3ghz? I remember hearing something about a certain percentage of these chips not being able to go over a certain mark. I'm not sure if that's due to heat issues (which i wasn't having) or it just plain won't go over 4.3 no matter what i do. Leave it alone or de-lid? If i de-lid and it doesn't work i'm just gonna pay the 25 bucks for the Intel Protection Program and pray i don't get another crap chip.
After some playing with voltages I was able to get my system stable at 4.6Ghz with 1.235v, cache ratio at 41 with 1.13v, vrin at 1.9v. Temps hit the mid 90's using IBT 20 passes. Using AIDA64 temps hit mid 70's. I think I've pretty much hit the limit of my H80i. Though, now that I've seen the clocks I can get at low voltages I'm considering delidding this chip.
Boo! Just had BSOD at hour 22 of my 4.7GHz overclock (4770K) torture test. 1.33v.
Was running Prime95 and looping the Unigine Valley demo at the same time.
I had set the FFT minimum size to 512 to try to avoid the worst of the artificial/erroneous voltage increases and heat. So I was only maxing at about 88c on core 3 (core 1 isn't quite as hot since it's busy running Valley instead of focusing on Prime95 exclusively).
I hope setting the FFT like that doesn't defeat the purpose of stress-testing. But I'm just not comfortable cooking my chip overnight with those tiny FFTs. So I'm gambling/hoping that instability will still be weeded out with the larger FFTs. So far, that seems to be the case.
I may have to start pulling back my multiplier to 4.5 or 4.6. I'm not comfortable increasing vcore and heat much (if any) more. Not with only my wee Corair H100i.
Sigh. . . 22 hours. Wife called to tell me it had crashed. I left it at hour 20 to go to work. Grrrr.
I think I'm going to delid, then try 4500hmz again. Like you I'm just not comfortable leaving the CPU at 91c for 24 hours, although probably it should be ok. I anticipate a 12-15c drop if I delid, and use some liquid metal TIM.
Are you going to do the vice method? I brought one home with me that was sitting in my folk's garage for years the other day, along with a good steel mallet and I've been eyeing the vice trying to figure out how I'm going to mount it... or if I should.
IMHO the vice method looks dumb as hell. Why would you subject your chip to that much abuse?
The razor blade method or the hairdryer/vice method are the safest from what I've seen.
This is probably the least stressful delid I've seen. Hairdryer to loosen the paste and then offsets the chip in the vice and applies just enough pressure to break the seal.
Are you going to do the vice method? I brought one home with me that was sitting in my folk's garage for years the other day, along with a good steel mallet and I've been eyeing the vice trying to figure out how I'm going to mount it... or if I should.
Yes I think so One vice I have has smooth sides so I'll probably use that one to hold the IHS.