i8700K No OC Thermal Throtting after gpu upgrade

[ELiTERiDER]

I haver a 8700K with no overclock and is thermal throtting after upgrading for a Gtx 1080 to 3080 ti, this is when playing Cold war.

My cooler is a corsair 115i pro all in one cooler with 2 x 140mm, case with 2x 200m front fans and 1 rear 140mm fan.

Any ideas how i can stop my cpu thermal throtting when playing Cold war?

Thanks 

[jaslion]

What temps is it running at?

 

What case do you have?

 

Is the rad mounted above the pump?

[Arika]

You didn't knock the cooler while you were installing your new GPU did you? 

 

First thing would be to take off the CPU cooler, repaste and remount.

[ELiTERiDER]

When not playing Cold war about 40-50 c, with cold war 80-100c with the gpu running at 70c.

Cooler Master MasterCase H500P

Yeah rad above the pump

 

No i didn't knock the cooler

[BetteBalterZen]

The exact same thing happened to my 8700K when I upgraded from 1080Ti to 3090. My 8700K immediately thermal throttled when playing games, nearing 100c on the cores. I do however also have 4 stick of RAM installed which also heats up the CPU more than having fx 2 sticks installed, because the IMC works harder.

I think it's simply because the new GPU's easily can handle everything the 8700K can do, and therefore pushes the 8700K way harder than older GPUs. 

I actually ended up capping the frequency to 4.3GHz on all cores with Vcore 0.095mV -Offset for undervolt, and also swapped the IHS with a custom cobber nickel plated one with Thermal Grizzly Conductonaut, + Kryonaut to the H100X AIO. 

All this keeps my CPU around 75c on a hot sommerday, after many hours of gameplay, in CPU heavy games. Also, as said above, I capped the CPU-frequency and made an -Offset undervolt, to lower the voltage as much as possible and still use auto voltage all around. In my experience, capped Vcore causes BSOD much more frequently than auto voltages. Though remember that big -Offset tends to cause BSOD at idle; 0.100mV gave me a BSOD after 4 days - 0.095mV haven't BSOD since I made the change in january. 

8700K is insanely hot, especially on poor silicon. I know my 8700K sucks big time, and yours probably suck too. 

[BetteBalterZen]

So yeah, what can you do now without going all the way with custom IHS, liquid metal, and so on? 

Cap the 8700K to 4.3GHz on all cores, to lower peak voltages

Try the -Offset for Vcore. Start with 0.100mV -Offset. I've seen people able to run 0.130mV with no issues. 
If you have more than 2 sticks of RAM installed, think about if you really need more than two sticks. 

You can also cap all videogames to your monitors refreshrate, to make sure your GPU never works harder "than needed" and therefore lowers the unnecessary load on the CPU. 

[ELiTERiDER]

I don't feel like underclocking is a solution to be honest. I have order some new case fans to see if that helps.

[BetteBalterZen]

2 minutes ago, ELiTERiDER said:

I don't feel like underclocking is a solution to be honest. I have order some new case fans to see if that helps.

To be honest, I don't think it will help you that much but I hope I'm wrong

Also, if you aren't overclocking and are running your 8700K stock, then in heavy games like Cold War, your 8700K won't even run at it's 4.7GHz Turbo speeds. That only happens when 1 core is used and games today all use 6 cores. 

[ELiTERiDER]

Yeah i don't think it will either but im hoping. Other than that i might reseat the cooler and new thermal paste 

[BetteBalterZen]

2 minutes ago, ELiTERiDER said:

Yeah i don't think it will either but im hoping. Other than that i might reseat the cooler and new thermal paste 

I also reseated my old H105 from Corsair multiple times, never helped. Then I thought; ey must be the AIO that has gone bad, so I ordered the H100X. Did not help at all. Same result. It's simply the 8700K running freaking hot. 

And btw, my case is filled up with fans, I have great airflow in my case. 

[ELiTERiDER]

4 minutes ago, BetteBalterZen said:

I also reseated my old H105 from Corsair multiple times, never helped. Then I thought; ey must be the AIO that has gone bad, so I ordered the H100X. Did not help at all. Same result. It's simply the 8700K running freaking hot. 

And btw, my case is filled up with fans, I have great airflow in my case. 

I just can't believe that before hand was fine and now i could cook a egg on it 

[BetteBalterZen]

2 minutes ago, ELiTERiDER said:

I just can't believe that before hand was fine and now i could cook a egg on it 

Trust me, I did not believe either at first. Then I got the new IHS on with liquid metal and wupti, problems solved. It's the 8700K, I have no doubt. 
I then lowered temps 5 c more with the -Offset and so on. 

[ELiTERiDER]

1 minute ago, BetteBalterZen said:

Trust me, I did not believe either at first. Then I got the new IHS on with liquid metal and wupti, problems solved. It's the 8700K, I have no doubt. 
I then lowered temps 5-10c more with the -Offset and so on. 

Have got a link on where i could get a IHS?

[BetteBalterZen]

Just now, ELiTERiDER said:

Have got a link on where i could get a IHS?

Sorry no, I had a local dude help me in Denmark, so I actually never ordered anything. So no sorry, I don't have a link. 

[BetteBalterZen]

Uhm, here: 

Copper IHS Kit - Intel 6th to 8th Gen – RockItCool
6th - 8th Gen Intel Processors – RockItCool

Please, if you go all the way with a new IHS, please use liquid metal < this is the real magic

[ELiTERiDER]

Going to look into this thanks

[Mister Woof]

2 issues:

 

1) higher utilization

2) if your AIO is set up for exhaust on the CPU, it will have a bad time using 350w+ heated air (from the 3080ti) to cool the radiator.

 

configure your AIO as intake instead

[ELiTERiDER]

4 hours ago, Mister Woof said:

2 issues:

 

1) higher utilization

2) if your AIO is set up for exhaust on the CPU, it will have a bad time using 350w+ heated air (from the 3080ti) to cool the radiator.

 

configure your AIO as intake instead

Yeah at the minute my AIO is set to exhaust air out and though the rad.

So you think i need to have it the other way around and drag cool air in and thought the rad?

[Mister Woof]

6 minutes ago, ELiTERiDER said:

Yeah at the minute my AIO is set to exhaust air out and though the rad.

So you think i need to have it the other way around and drag cool air in and thought the rad?

It's possible.

 

With a big air cooler, my 3080's 360w of waste heat overwhelmed it fast when both stressed.

Switched to a big 360 aio intake and that helped a lot. I dont think the larger radiator made that big a difference, but i think it getting cool air from outside did.

 

Negligible difference on GPU temps because CPU doesn't really heat up too much during playing games.

 

It could also be that your 8700k's stock TIM dried up.

[ELiTERiDER]

3 minutes ago, Mister Woof said:

It's possible.

 

With a big air cooler, my 3080's 360w of waste heat overwhelmed it fast when both stressed.

Switched to a big 360 aio intake and that helped a lot. I dont think the larger radiator made that big a difference, but i think it getting cool air from outside did.

 

Negligible difference on GPU temps because CPU doesn't really heat up too much during playing games.

 

It could also be that your 8700k's stock TIM dried up.

Sorry what's the "8700k's stock TIM dried up"?

[Mister Woof]

10 minutes ago, ELiTERiDER said:

Sorry what's the "8700k's stock TIM dried up"?

The thermal paste intel puts between the die and the integrated heat spread (IHS, or the "lid" in this case) wasn't great to begin with and it can definitely lose thermal capacity over time.

 

Lots of users "delid" theirs and replace that thermal interface material with liquid metal.

 

I did that on my 8700k.

[Robchil]

if you delid the 8700k and relid it with liquid metal mine atleast had a 20C drop in heat. 

[ELiTERiDER]

1 minute ago, Mister Woof said:

The thermal paste intel puts between the die and the integrated heat spread (IHS, or the "lid" in this case) wasn't great to begin with and it can definitely lose thermal capacity over time.

 

Lots of users "delid" theirs and replace that thermal interface material with liquid metal.

 

I did that on my 8700k.

Yeah i see what you mean now i watched a vidio on it but i think that might be out of my skill level