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3930k First Time Overclock - Does this look OK?

post #1 of 17
Thread Starter 
So after a lot of trial and error I managed to get my 3930k up to 4.3 ghz with an H220 cooler. I had to go all the way up to 1.35 volts to achieve this though so if you guys could take a look at this and tell me if anything is wrong I'd appreciate it. So far this was prime stable overnight (about 8.5 hours) and passed 20 runs of the IBT. I want this to be a 24/7 overclock so if I can go maybe to 4.5 and maintain my temps hopefully someone can steer me in the right direction.

System:
3930k @ 4.3ghz - 1.35 fixed voltage
Asrock x79 extreme6 mobo
16gb G.SKILL Ripjaws Z 1866 Ram
2x Sapphire Dual X 7970
Swiftech H220 AIO Cooler

Temps screenshot



Load temps on Core 0 hover around 80-81. Every other core is from 72-77. Are these acceptable levels or should I reseat my heatsink?

Bios




I did have to bump up my VTT and DIMM voltage based off the BSOD I was getting.

Thanks in advance.


EDIT: Forgot to mention the H220 is mounted up top as exhaust pull. Adding two fans to it today for push/pull and I'm going to switch my rear exhaust to intake so all top fans are the only cast exhaust. This is on a NZXT Switch 810.
Edited by jderbs - 5/20/13 at 9:31am
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post #2 of 17
I can't provide any meaningful insight into your OC because I'm new at this also, but I'm wondering why you core voltage (1.344V) is higher @ 2.2% CPU load versus 100% CPU load (1.32V).
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post #3 of 17
Quote:
Originally Posted by shawnj View Post

I can't provide any meaningful insight into your OC because I'm new at this also, but I'm wondering why you core voltage (1.344V) is higher @ 2.2% CPU load versus 100% CPU load (1.32V).

Somebody correct me if I'm wrong but I think this is just vdroop and is perfectly normal. I'm guessing he is using a manual voltage. The CPU will stay at the voltage he sets until it's under load in which case it will drop slightly. Regarding the overclock, every CPU is different but 1.3ish volts for 4.3GHz sounds about right. You might want to dial it back a bit with those temps though. Unless you're using custom watercooling, you won't be overclocking these chips that much. They just put out too much heat. Personally I don't like the load temps much above 70 on my 3930k.
Edited by ShoehornHands - 5/20/13 at 1:13pm
post #4 of 17
I'm new to overclocking my 3930k as well, but I'm sitting at 4.8GHz with 1.344v and my max load is ~63c with the h220. Of course it will be different results for others since I'm doing a push pull. I would say you should try and reseat it and see what you get. Also the lower volt reading is a ( - ) vdroop, but you can usually set that pretty easily in UEFI or BIOS.
post #5 of 17
Thread Starter 
I switched the rear exhaust fan to intake and added two more fans to the radiator for push/pull (still exhaust at the top) and my temps dropped 3-5 degrees across the board for mins and max. Now instead of Core 0 hitting 80+ C it hits 75-76. Definitely going to keep the push/pull, but how much more can I expect to get out of this chip? Sounds like I might not have the best one out there rolleyes.gif
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post #6 of 17
Quote:
Originally Posted by jderbs View Post

I switched the rear exhaust fan to intake and added two more fans to the radiator for push/pull (still exhaust at the top) and my temps dropped 3-5 degrees across the board for mins and max. Now instead of Core 0 hitting 80+ C it hits 75-76. Definitely going to keep the push/pull, but how much more can I expect to get out of this chip? Sounds like I might not have the best one out there rolleyes.gif

Like I said, give it a reseat and see what you get. Also don't be afraid to put on more TIM than you normally would because this chip has a very big surface area.
post #7 of 17
1.344v 4.8Ghz? you have tested with new prime95? because mine can do that same, but when need to prime long time, it goes to 1.42 smile.gif))
biggrin.gif
post #8 of 17
Thread Starter 
Quote:
Originally Posted by Zealon View Post

Like I said, give it a reseat and see what you get. Also don't be afraid to put on more TIM than you normally would because this chip has a very big surface area.

I'm gonna give that a shot tomorrow when I get the different TIM I have coming to me. The heatsink never got picked up while I was mounting, but it was sliding around some until I could secure two of the screws... not sure how much that makes a difference.

Edit: Should I up my vdroop? On my mobo there's level 1-5... currently set at level 2
Edited by jderbs - 5/20/13 at 6:02pm
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post #9 of 17
Quote:
Originally Posted by jderbs View Post

I switched the rear exhaust fan to intake and added two more fans to the radiator for push/pull (still exhaust at the top) and my temps dropped 3-5 degrees across the board for mins and max. Now instead of Core 0 hitting 80+ C it hits 75-76. Definitely going to keep the push/pull, but how much more can I expect to get out of this chip? Sounds like I might not have the best one out there rolleyes.gif

If you really want a significant overclock on your 3930k you might want to look into custom water cooling. The performance of the all-in-one closed loop solutions can't match the performance of a custom loop. That said, I'm using a Corsair h100i to cool my 3930k. I replaced the stock Corsair fans with some Noctua NF-F12 fans in a pull configuration. I'm only running the fans at 1000 rpm (I value silence over the additional performance) and am able to run my 3930k at 4.2GHz @ 1.26v with load temps never breaking 70. You might want to try some different fans on your radiator. The Noctua NF-F12 is a high static pressure fan so it's great for radiators.
post #10 of 17
Thread Starter 
Quote:
Originally Posted by ShoehornHands View Post

If you really want a significant overclock on your 3930k you might want to look into custom water cooling. The performance of the all-in-one closed loop solutions can't match the performance of a custom loop. That said, I'm using a Corsair h100i to cool my 3930k. I replaced the stock Corsair fans with some Noctua NF-F12 fans in a pull configuration. I'm only running the fans at 1000 rpm (I value silence over the additional performance) and am able to run my 3930k at 4.2GHz @ 1.26v with load temps never breaking 70. You might want to try some different fans on your radiator. The Noctua NF-F12 is a high static pressure fan so it's great for radiators.

Currently using Scythe GT AP-15s on the rad... 4 now in push/pull. I'm going to try remounting tomorrow and see where I'm at. I'm pretty sure my temps are too high for this O/C at this point from what I've read, so I must have not done something correct while mounting.

I looked into custom loops, but they're just too costly for me right now.
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