78oc i7 8700k

[gazdadude]

Is that too hot?

[Emran Elsamra]

72 or 71 you should be aiming to 

[Princess Luna]

Doing what?

[gazdadude]

82oc doing a stress test at 4.7 MHz with a noctua u14s 

[TahoeDust]

No issue at all.  Don't listen to the "Try to keep it under XXc" nonsense.  Enthusiast baby their CPUs.  There are CPU's bouncing off their thermal limit in harsh environments all over the world running for years.  If you are not hitting the thermal limit, you are not hurting your CPU.

[Biggerboot]

Keep in mind stress test is worst case scenario.  I'd be comfortable with around 80.  What's your cooler? Nvm missed your post.

[gazdadude]

3 minutes ago, Biggerboot said:

Keep in mind stress test is worst case scenario.  I'd be comfortable with around 80.  What's your cooler? Nvm missed your post.

im 3oc over is that ok

[thorhammerz]

7 minutes ago, gazdadude said:

im 3oc over is that ok

If it's not spiking to ~95C (accounting for a possible 5C discrepancy in thermal sensor readings), and if you're not pushing high voltages (1.4v+) you're likely to be fine.

 

CPU degradation and/or failure from electromigration accelerates when you have both heat & voltage. The more voltage you use, the less heat you ideally want to subject your CPU under.

 

This all ultimate loops back to something a little simpler:

 

Do you particularly care if your CPU fails in 5 years vs. 10 years vs. 15 years?

[Biggerboot]

9 minutes ago, gazdadude said:

im 3oc over is that ok

It's ok.  It's not a strict number you have to hit, I think max operating temps are 100c.

If you have multi core enhance enabled on your board, that's not a bad temp.  That means all 6 cores are firing at that speed.  Typically, you won't have that happen.  

[gazdadude]

6 minutes ago, thorhammerz said:

If it's not spiking to ~95C (accounting for a possible 5C discrepancy in thermal sensor readings), and if you're not pushing high voltages (1.4v+) you're likely to be fine.

 

CPU degradation and/or failure from electromigration accelerates when you have both heat & voltage. The more voltage you use, the less heat you ideally want to subject your CPU under.

 

This all ultimate loops back to something a little simpler:

 

Do you particularly care if your CPU fails in 5 years vs. 10 years vs. 15 years?

It’s at 1.34 volts stable

[gazdadude]

6 minutes ago, Biggerboot said:

It's ok.  It's not a strict number you have to hit, I think max operating temps are 100c.

If you have multi core enhance enabled on your board, that's not a bad temp.  That means all 6 cores are firing at that speed.  Typically, you won't have that happen.  

That’s spot on thank you

[Emberstone]

If you haven't tried already, if you're only going for 4.7 GHz on the 8700K you should be able to get that voltage lower.

 

I've got 4.7 GHz at 1.25v. Significantly lower.

 

If you have tried, RIP.

[ZcanKal]

You should be fine, unless it's thermal throttling.  The heat won't kill your components, just look at Vega 64 (aircooled), GTX 480, Pentium 4, and the FX 9000 series, all of them still exist somehow.

[gazdadude]

7 hours ago, Emberstone said:

If you haven't tried already, if you're only going for 4.7 GHz on the 8700K you should be able to get that voltage lower.

 

I've got 4.7 GHz at 1.25v. Significantly lower.

 

If you have tried, RIP.

I’ve caged the voltage to 1.25 but it stays there and doesn’t go any lower even on idle

[gazdadude]

Also is it safe to lower the voltage on enhanced turbo 

[Biggerboot]

13 hours ago, gazdadude said:

Also is it safe to lower the voltage on enhanced turbo 

You may have some instability if the voltage is too low, but I don't think it'll damage your cpu.