i7 8700k Overclocking Question

braz2kuk · 19 Feb 2018 at 09:58

Hi,

I’ve been out of the fold for about 10 years but have decided to get a new gaming rig, anyway picked up the components in my sig at the weekend and have it running with Windows 10 Home.

I have it Overclocked at 4.7 GHz with 1.31 Vcore, my Question is what counts these days as a stable stress test?

Back in the day it was Prime 95 but i’ve Heard conflicting information.

Anyway what would people recommend using? As I said it will be used primarily for gaming?

Thanks

orbitalwalsh · 19 Feb 2018 at 10:01

Managed to hit 5.1 Ghz with mine, 1.35v and a very high vrm temp but am on a ITX board!
This was using Asus Real bench and no AVX offset.
BUT - when running gaming benchmarks/ stress tests like Firestrike Stress test running for 8 hours straigh, VRM was 56c and core was 54c
I just use CPU stress tests to see how stable core is and min voltage it needs, then run game tests. If i was CPU rendering, then Id be dropping Speed and Voltage in a heart beat and that does cause max heat and stress!
tend to run tests from 2 hours to 4 for Gaming rigs and if its for a workstation build, min 24 hours as they are set to render for days at a time!

muppet · 19 Feb 2018 at 16:43

use heaven benchmark or stress the cpu a lot more with aida64

Awahwah · 19 Feb 2018 at 16:59

Realbench. ADIA and Prime is what I use. If it passes an hour of each, I'm happy. I have found that i can be game and Prime stable but not Realbench stable.

britain4 · 19 Feb 2018 at 18:53

Mine's 24 hours AIDA stable before I shut the test off but recently had a CPU related BSOD while gaming so had to up my voltages a tad. Prime95 is just way too much IMO. Only way to be 100% sure is to use it, if you get a BSOD, bump the voltage a bit until they go away.

braz2kuk · 19 Feb 2018 at 21:00

Ok cheers, I’ve got it running happy at 4.8ghz with 1.31 vcore, I also enabled Turbo LLC which has seemed to help.

I have run Cine Bench, RealBench and Intels Stress Test and all passed, temps were around 75 degrees.

If I run Prime 95 then temp hit 87 which I don’t like so not sure on where to go next.

Cheers

FishD · 21 Feb 2018 at 02:51

Mine is an 8min render in Davinci Resolve (free), best quality, 3440x1440@60hz. If it gets past that, and I'm happy with the temps, then i'll use prime for longer test, but generally the render is more demanding.

orbitalwalsh · 21 Feb 2018 at 10:36

braz2kuk said:
Ok cheers, I’ve got it running happy at 4.8ghz with 1.31 vcore, I also enabled Turbo LLC which has seemed to help.

I have run Cine Bench, RealBench and Intels Stress Test and all passed, temps were around 75 degrees.

If I run Prime 95 then temp hit 87 which I don’t like so not sure on where to go next.

Cheers

yes Gigabte boards are funny without LLC turned on to turbo at least, if you can go extreme - might be able to push higher . LLC on turbo also helps with high ram speeds