Safe Overclock for a 5820k?

Cagruntas · Aug 27, 2016

I got my i7 5820k to 4.4k Ghz at 1.265 V, Is this a safe overclock for my CPU? or I should Dial things back down?

Specs:

Intel i7 5820k
Asus x99 Sabertooth
Corsair H100i GTX AIO cooler
Corsair vengence LPX RAM 16 GB 4x4 at 2667
EVGA GTX 970 SLI
Corsair RM 850i

_TheD0ct0r_ · Aug 27, 2016

As long as you have tested its stability and its temperatures are stable, its perfectly fine. Your motherboard is made for overclocking, and there is a K on the cpu name for a reason.

hshark93 · Aug 27, 2016

Mines at 4.5 Ghz with 1.3V with the same cooler

Cagruntas · Aug 27, 2016

hshark93 :

I tried to get 4.5 at 1.3 V but it wasn't stable at all, I couldn't even boot into windows even once...

Cagruntas · Aug 27, 2016

_TheD0ct0r_ :

Yeah I know but I basically wanted to know if that voltage was to high for the OC I got, I can't get it stable at anything lower than that :| So I was hoping to compare with some other people lol :|

scuzzycard · Aug 27, 2016

Cagruntas :

That's perfect, I would leave it right there.

1LiquidPC · Aug 27, 2016

I'm using 1.325v for mine @ 4.4Ghz. Been running this way since shortly after X99 launch. I can boot and run some benchmarks at 4.5 at this voltage, but crashes in other benchmarks.

scuzzycard · Aug 27, 2016

1LiquidPC :

There's some variance. My first chip was similar to yours. It also seems like the more recently produced chips are
better overclockers than the earlier batches. I've had 3: First one did 4.3@1.25 and hit a wall above 4.5; next did 4.5@1.25 and hit a wall above 4.7, and the third does 4.6@1.23, hits a wall above 4.8. What's interesting is that on my current chip, each individual core can do 4.9@1.33, but with all cores enabled, 4.9@1.35 is impossible. My second chip had the best cache - it was the only one that could run at 1:1 at any speed I tried.

1LiquidPC · Aug 27, 2016

Thanks for the info. I'm seen mention of this as well. The newer batches do seem to OC better. I have my cache at 4Ghz as well. I did consider the i7 6800k Broadwell-E, but after reading the reviews it looks like it could end up at a lower OC than where I'm at now based on averages. Even with the higher IPC, I don't think it would really be worth it to me unless I got at least the same frequency.

scuzzycard · Aug 27, 2016

1LiquidPC :

I think you made the right call. Broadwell-E was mildly disappointing. The 6950X is kind of impressive, but overpriced. A pair of Xeon E5-2630V3's would crush it for the same or less money.

Cagruntas · Aug 28, 2016

scuzzycard :

Update : So suddenly this over clock is unstable after doing other tests, Now I finally have it stable at 4.4 GHz at 1.285 V :/ ...Is this safe? You seem to have a lot of experience with these

1LiquidPC · Aug 28, 2016

Should be fine. I've been running mine @4.4Ghz at 1.325v since about October '14. You'll see 1.3v is commonly recommended max, but this number is not set in stone. Its not like 1.3v is totally safe, and 1.31 is bad. Any voltage above stock can lower CPU lifespan, so the risk is going to be there when OCing. However, the higher the voltage and temps, the higher the risks. Comes with the territory. Still, I'd be happy with 1.285 if I were you. Maybe not the best out there, but a good amount less voltage than I need.

scuzzycard · Aug 28, 2016

Cagruntas :

scuzzycard :

Update : So suddenly this over clock is unstable after doing other tests, Now I finally have it stable at 4.4 GHz at 1.285 V :/ ...Is this safe? You seem to have a lot of experience with these

An extra 20mV is no big deal. Enjoy it

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