[SOLVED] I9 9900k Is driving me nuts

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SaltyChocolate

SaltyChocolate

Sep 4, 2021
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I'll list the specs first.

I9 9900K
Z390 Aorus Master
RTX 3080 Master
16Gb Ram 2400MHZ(Waiting for new Ram)
ASUS 850G 850PSU
Aorus 360MM AIO

This has been driving me nuts but my CPU has been idling at around mid 40's to 50's. When it hits the 60's i hear my Fans Ramp up to try and cool it and for some reason when i first boot up the Computer and turn on firefox( I still have tabs open here..So about10 tabs. I used to have more but not anymore.)
It for some reason reports like 80C on Core Temp and i just hear my fans go into overdrive.(Happens every now and then on first boot of loading all the tabs but its still annoying.)
I leave firefox open as i play games just so i dont have to close it when i need to get some work done. (School work and Work work..Yknow for those last minute calls.)

In games im hitting high 80's and 90's and making the mark of 100C when it spikes up. I'm pretty sure this is not good for the CPU in the long term and i have no idea why it does this.. I wanna say its the RTX 3080 Dumping all the heat around the CPU but..I just dont know. Its done this even before i made the switch to the 3080 from the 1080ti.
Just that now it does this more often. Previously i didnt watch it too closely.

I saw in one of the other threads that removing Intel Rapid Storage Technology(That Mumbo..If i got this right.) would help reduce idle temps and it did reduce it by a few degrees but the spiking of temp does still annoy me.
Please help, This is gonna give me a headache..
 
Solution
Mr5oh
SaltyChocolate said:
Im getting basically the same temps with auto. Or should i try the.. 'Normal' setting i see in Vcore.
Theres like marginal temp differences as both are still at like 90C when im playing a game,40 to 50's on Idle. Sometimes 60 and then the fans would ramp up to 2500RPM to get it back down to 50.
Might be bad paste/coverage. Or just a bad mount. I'll give it a shot when the Thermal paste pops in tomorrow.
Click to expand...

I would try both, see what happens. I only change set voltages manually when overclocking. Other than that I let the board control them. I would definitely try and change your paste and remount as well too though.

I don't have any of those games to test, but it really wouldn't matter as every chip is different. Not to mention...
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Rads can be clogged with dust. This drives up temps. Also if the cpu is stock a 360mm rad should not be hitting 100c and idle should be close to the room temp. Even with an overclock I will only hit high temps in prime95. A good reason for high temp on the cpu other than an overclock is no thermal paste/bad coverage of thermal paste or bad contact with the heat spreader and water block.

What VRM temps do you get? Do you have air flow over the vrms? HWiNFO can help, a screenshot from idle and under load. A picture on the inside of the case can give us an idea of the issue and how airflow works for your build. Where the fans are and will give an idea of the size of your case. Is the rad clogged with dust? What overclock if any do you have currently? Do you have the power limit set to 4095 in BIOS? What is your power plan? Sometime power saving turns the fans off and results in higher temps. If you set the AIO fans to maximum do idle temps drop? If you open the case do temps improve?

I have Intel Rapid Storage Technology installed and my idle temps for a 10900k is below 30c.
 
Last edited:
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NightHawkRMX said:
The evolve x has quite poor airflow.

Remove the aio entirely, clean dust, and replace thermal paste. Also make sure the sticker on the bottom of the block is removed.
Click to expand...
I've just cleaned it out actually when i got the RTX 3080 just yesterday. I'll see about removing the preapplied thermal paste once i get it ordered in around monday.
 
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SaltyChocolate said:
I've just cleaned it out actually when i got the RTX 3080 just yesterday. I'll see about removing the preapplied thermal paste once i get it ordered in around monday.
Click to expand...

Yeah the case air flow issue isn't going to change without modifications. However since I'm using a 9900k and a similar board, I'll ask what BIOS revision you are on? There was a fix to prevent some undesired power delivery issues to the CPU (read it was supplying uneeded voltage to the vcore) which did make CPUs run hot. On the support website it says, "Fix CPU Vcore and power behavior".
 
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Mr5oh said:
Yeah the case air flow issue isn't going to change without modifications. However since I'm using a 9900k and a similar board, I'll ask what BIOS revision you are on? There was a fix to prevent some undesired power delivery issues to the CPU (read it was supplying uneeded voltage to the vcore) which did make CPUs run hot. On the support website it says, "Fix CPU Vcore and power behavior".
Click to expand...

Version F11N
Phaaze88 said:
Looks pretty clean...
Repaste and remount the cooler. Push down gently on the pump head to see if there's any wiggle or give - there shouldn't be any.

Really? Tom's and Gamers' Nexus say it's actually does ok there...
Click to expand...
Theres like a Very Smidge amount of wiggle room, i'll wait for the new Thermal paste to arrive then i'll give it another remount and have a go.

I'm getting like 80 to 90 spikes in stuff like Division 2(Stupid max settings.) Warthunder(Stupid Max settings as well) and Star Citizen (30Frames since..Well..Need more Deditated Wam since im also running the Browser in the background.)
 
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LOL.
The mystery of the cooler mount aside, the spikes could be from AVX instructions kicking in - IDK for sure, as I don't play those games.
Perhaps the auto voltage runs a bit high. You can't stop the spikes from happening, but the sharpness can be reduced with some undervolting.
Go into bios, find the cpu's Vcore setting and apply a negative voltage offset of like, 0.050 or something. The worst it'll do is crash or BSOD(watchdog or irql) if the offset is too aggressive, so it doesn't hurt to try it.
 
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SaltyChocolate said:
All BIOS Settings are on Default, Auto. Aside from Vcore which i set to 1.27V
https://imgur.com/a/oPWlNfY
Click to expand...

That BIOS has the voltage fix. So the next question is why did you change the VCore voltage manually to begin with? I know every chip is different but I know just sitting around at idle, my 9900k in my Aorus Pro Wifi sits down around ~0.650v which is going to run a lot cooler. Your minimum voltage isn't quite double but almost is.
 
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Phaaze88 said:
LOL.
The mystery of the cooler mount aside, the spikes could be from AVX instructions kicking in - IDK for sure, as I don't play those games.
Perhaps the auto voltage runs a bit high. You can't stop the spikes from happening, but the sharpness can be reduced with some undervolting.
Go into bios, find the cpu's Vcore setting and apply a negative voltage offset of like, 0.050 or something. The worst it'll do is crash or BSOD(watchdog or irql) if the offset is too aggressive, so it doesn't hurt to try it.
Click to expand...
The lowest i can go is like 1.28V, Any lower and i'll BSOD.
 
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Mr5oh said:
What was wrong with "Auto"?
Click to expand...
Im getting basically the same temps with auto. Or should i try the.. 'Normal' setting i see in Vcore.
Theres like marginal temp differences as both are still at like 90C when im playing a game,40 to 50's on Idle. Sometimes 60 and then the fans would ramp up to 2500RPM to get it back down to 50.
Might be bad paste/coverage. Or just a bad mount. I'll give it a shot when the Thermal paste pops in tomorrow.
 
Upvote 0 Downvote
SaltyChocolate said:
Im getting basically the same temps with auto. Or should i try the.. 'Normal' setting i see in Vcore.
Theres like marginal temp differences as both are still at like 90C when im playing a game,40 to 50's on Idle. Sometimes 60 and then the fans would ramp up to 2500RPM to get it back down to 50.
Might be bad paste/coverage. Or just a bad mount. I'll give it a shot when the Thermal paste pops in tomorrow.
Click to expand...

I would try both, see what happens. I only change set voltages manually when overclocking. Other than that I let the board control them. I would definitely try and change your paste and remount as well too though.

I don't have any of those games to test, but it really wouldn't matter as every chip is different. Not to mention I'm using a case with more air flow (Phantek Enthoo Pro M). I've currently been playing Cyberpunk 2077, firing that game up my voltages generally sit just below ~1.25v and I sit around 50 C. (~23 C ambient temp in my office). With my NH-D15, my 9900k idles right at about 30 C.
 
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Solution
Zerk2012 said:
Case with poor airflow and you just put in a power hunger 3080, you could try turning the back fan around blowing air in.
Click to expand...
Yeah, That certainly doesn't help with how..Well IMO it vents the heat well enough that its spitting it from its sides as well as the bottom fans and basically rises up to the CPU. Stupid hot to the touch but the GPU keeps a pretty solid high 60 to 70. Maybe 80 if i crank up every setting but the sheer..Mass helps keep it down.
I'm just hoping I'm being an idiot and i didn't mount it properly along with a bad application of paste on the plate.
 
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..I feel like a massive Tw@t. The issue was actually both. The Mounting was loosened and the paste was..Well...It was good but its definitely worn.
Back when i first mounted it i may have routed the cables a bit too tight and i did it around the mounting areas so it slowly pulled the cooler out over the months(coming to a year.)
And the thermal application that was already on the cooler when i brought it out wasn't stellar. Most of it was on one side with about a fourth of the CPU not being 'coated'

I'll await the new Paste and apply it. Which i would assume would bring the temperatures down further. At this rate i can actually notice a huge difference. Idle is 30's to mid 40s, Maybe 50's when i open like 20 tabs while running videos on all of them while downloading/updating games in the background.
Playing and benchmark on games like Div 2, World War Z and Tomb Raider now actually sits it comfortably around 40 to 60c. Provided I'm not running around doing anything crazy. Maybe mid 70's.

I'd like to say thank you for..Well. Helping me with my stupidity. And i hope your day goes well. Theres still a wind but..Its alot more manageable now. Doesn't annoy me as much since i don't hear it turning into a Bugatti.
 
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SaltyChocolate,

At the top of this Forum is the Intel CPU Temperature Guide 2021. Go to Sections 11 (Thermal Test Basics), 12 (Thermal Test 100% Workload) and 13 (Thermal Test Minimum Idle). The test methodology conforms to Intel's "Datasheets" which will give you a valid baseline for your rig's thermal performance. As you read the Guide and run the Tests, all the confusion will start to make sense and you won't have anymore headaches.

CT :sol:
 
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