My new 4670k and overclocking...

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TheRapture

Supreme [H]ardness
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Well, after finally building a new rig, I went home to Intel with the express intention of a nice overclock. Sooooo....after a day spent reading up and learning how to overclock these new (to me) Intel chips, I am headed in a very good direction. My water cooler is not here yet, so I have been using the stocker (ugg?) just to establish a baseline. I played around with some mild overclocks to 3.6, 3.8 on stock volts with nothing more than a multiplier change, and 3.8 is the highest I can keep it for Prime95 due to temperatures climbing rather rapidly to 87c (stock cooler mind you) with the cooler fan on full blast.


I set my core voltage to 1.25 manually, turned off adaptive, and it went straight up 4.6ghz to the desktop. I can run 4 instances of Folding@Home this way for a few minutes, but temps obviously are in the 85-87 range, and Prime95, forget about it....it hit 90c instantly. It games perfectly at 4.6 though (nothing crazy, just an hour of Doom3 and Crysis).

But man, this is looking great, I can't wait to get the water on it next week.
 
LoneThrasher said:
That sounds like insanely bad temps for 1.25v... What cooler are you using?
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what are you talking about?.. yes you can make the 50 post but do not troll in that way just to make some post counts... he its with STOCK cooler at 4.6ghz.. and can game perfectly even fold without throttle again with INTEL STOCK COOLER and you say its bad?.. stop trolling..
 
Drive-by in progress....


Anyway...I can run 4 folding processes and game at 4ghz @1.1v no issues, max cpu temp 84c after 2 hours. I am not going to bother with any more testing beyond that since I am maxing out on temperatures. My H80i should arrive Wednesday. :D

And apparently core 3, running 8-10 degrees cooler than the other three is normal?
 
It can be normal, it can be bad contact with the plate, can be bad contact between the die and the IHS.....so yes, its entirely plausible, could also be a faulty sensor as well
 
yes it can be normal.. even at 100% load the cores are loaded in different way theres always a hotter core in all system and a cooler core and the difference between those can be that amount, but as W.Feather said could be a problem with the sensor too, as for example my 3770k its completely uncalibrated when it down to less than 30C it can drop from 30C to 22-20C even if the room temp its 27-28C it also may be your case with that core..
 
Temps are quite normal. Seems like you got a pretty decent chip :)

Now to delid, drop it in that water, and shoot for the stars? :D
 
So I delid, apply new TIM, then put the lid back on?

Or leave the chip bare back?
 
Looks like we put the IHS back on eh? I will be doing this, looks pretty easy.

I am not afraid to mess with the chip, I have sanded the IHS down before, used conductive paste to connect the dots on the old cpu's, even the single strand of wire trick in some of the AMD sockets to overclock.

I have not modded anything like this in a while, looks like it's time time to get back to it :D
 
Sorry if I seem redundant...just updating my silliness with the stock cooler while I wait for the water to arrive.

I tested for 12 hours at 4ghz using 4 instances of Folding plus RTHDRIBL to load the gpu a bit, with some gaming thrown in on top, no issues. Max temp 82c in an ambient environment of about 25c.

Now at 4.1 and testing...

I know this isn't Prime95 but it provides a solid load...going to de-lid this chip and put it on water then we'll see if I can get 4.4+ out of it which would thrill me to death.
 
The H80i is here. I am going to get that baby installed :p

When I get back I'll be all wet.
 
Well, initial results are going nicely! I got to 4.4ghz at 1.265 vcore, stress tested with Intel Burn on HIGH for 20 runs, man that software gets some HEAT into the cpu...it got to 92c in blips while running that. Prime 95 torture test ran overnight for 10+ hours with no errors.

I have two weak spots to improve on, and that is of course vcore, as well as the cpu cache multiplier of 35. It seems the cache multiplier performance range is 39-41 from some in depth reading, although at synced ratio of 44 I would freeze after about 30 minutes. I think I can get vcore lower as my initial stability issues seemed more to do with other factors rather than voltage shortcomings.

I will say though, compared to my old Phenom 965BE @3.8-4 ghz, this Intel cpu blows that one out of the water. 4.4ghz is more than enough for gaming right now, so I will prob roll at 4.4 for now and fine tune everything, I seriously do not know if trying to go to 4.5/4.6 is even worth the time...
 
taking into consideration you have a 4670K which have the issue with the crappy TIM under the lid and the horrible voltage regulation and VRM high temperature, your chip are a very very good one, more of that point you probably will have to delid to avoid insane temperature, i will probably just try to do the best to be stable at 4.5ghz and forget about anything more (as i did with my actual 3770k without even delid because its a good chip)..
 
Highest temp seen running Prime95 all day long was 86c, with an average of 83c. My H80i fans are at a very quiet 1600 rpm, I cranked them up and it only results in a shit ton more noise and only 2c more cooling.

I may de-lid it one day in the near future, but for now I am going to leave it alone.
 
4.5, so far so good...


2jaezgx.jpg
 
My basic settings:

Core Multi: 45
Cpu core volts: 1.255 fixed
Cpu Cache Multi: 40
Cpu Cache volts: 1.2 fixed
Cpu Input volts: 1.9
 
Well, I used an old dual core E series as practice before I delid my 4670k...it's very easy using a single edge razor....took about 5 minutes or less.

2s6kidg.jpg


Next up...
 
Well, After some serious, days long stability testing at 4.5ghz @ 1.255 vcore...I gave in and decided to try the next step. I am fast approaching my cooling ability probably since I only have the Corsair H80i.

4600mhz @1.290 vcore...if it is stable for 10 hours of Prime95, I'll lower vcore a bit and test. Temps are approaching 90c so this is getting to my wattage limit for my rather quiet cooling solution. If I can lower vcore to maybe 1.275 or 1.28 I might just have a new day to day 4.6ghz machine. I am impressed with this cpu....maybe I should delid it after all???

e8uxht.jpg




EDIT: I BSOD'd after an hour of P95...increased voltage to 1.295v and testing again. I probably should be happy at 4.5ghz....but that's just not what an overclocker would do is it?
 
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My 4770k seems very similar, I have mine at 1.287v right now 4.5ghz, anything above that and it seems to be unstable, running a full custom loop tops out around ~68c. I could probably get away with 4.7ish with more vcore but haven't tweaked it enough.
 
Well, even at 1.295v I got a BSOD after about 2 hours of P95. I seriously doubt that 100mhz more is worth messing with that much voltage, plus the drop in stability. At 4.5 I can run my fans very low and quiet, and games don't even get anywhere near 75c so I think I'll just leave it alone for now. 1.255v at 4.5 seems to a very sweet spot for this cpu.

Unless I delid it :)

My R9 290 will be in next week, then I just have some gaming to do.
 
I have tried several different voltages, cpu ratios, etc. , and my chip LOVES 4.5 @1.256v.

However, even at 1.3v, 4.6ghz will freeze or flat out BSOD. 100mhz is indeed NOT worth messing with at this point. So a 4.5ghz final overclock is good, I am happy, and I think it will serve my MSI R9 290 4gb card well.
 
That looks good. I have the same chip but I'm still trying to decide on the cooling. I have it in a Lian-Li PC-V351 case and I'm trying to decide what cooler I can squeeze in there.
 
That's an interesting case. I have one of my 120mm fans on the outside of the case...then the radiator inside, with the other 120mm fan so that the rad is still in a push/pull fan sandwich. That opened up a nice size spot around the cpu area and makes it ultra easy to remove the water block.

Why can't you just mount the radiator on the outside and let the fans suck fresh air through it?
 
Damn, seeing 75C with my 4-year old CPU makes me uneasy and you get a new CPU and run it at 90C? I wish I had cajones like you ...
 
Runt. said:
Damn, seeing 75C with my 4-year old CPU makes me uneasy and you get a new CPU and run it at 90C? I wish I had cajones like you ...
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Well, that is WORST case scenario... even with a demanding game it only hits 55c-60c.

I rarely keep these cpu's more than 2-3 years anyway, and even Intel says 85-90 c is fine. Imagine how hot some of those OEM boxes run!
 
Last update I think in this little thread...I tried going up to a 42 cache multi, and it lasted about 5 runs into IBT before a BSOD. However, at 41 multiplier, it will run 20 tests straight through on high.

So, 4.5 it is, time to play with my new R9 290.
 
TheRapture said:
Last update I think in this little thread...I tried going up to a 42 cache multi, and it lasted about 5 runs into IBT before a BSOD. However, at 41 multiplier, it will run 20 tests straight through on high.

So, 4.5 it is, time to play with my new R9 290.
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So after your amazing adventure what are the finial setting you added into the bios? I have the same chip and a H100i cooler.
 
TheRapture said:
Well, I used an old dual core E series as practice before I delid my 4670k...it's very easy using a single edge razor....took about 5 minutes or less.

2s6kidg.jpg


Next up...
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What are you doing here as well? Haha sorry
 
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