Overly hot 9700k

Blueyoshi03

Blueyoshi03

Blueyoshi03

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3 Aug 2018
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74
I've recently bought a 9700k and have for the first time started overclocking and i'm running into extreme temperatures and I cannot figure out why. I had a budget 240mm aio which i've just replaced with a 360mm Arctic Freezer II and i'm still getting bad thermals under stress test, maybe worse somehow?!

My overclock is 4.8ghz, 2 AVX offset, 1.325v, LLC level 6, and my motherboard is a Z370-F.

Idle temps are 28-30c which sounds good, but even opening chrome will spike to 60c no problem. In fact when I first boot up and check Core Temp it shows 50-60c max just loading windows stuff, and on smallest prime 95 I hit 98c on some cores in under 10mins and I'm scared to run it any longer...

I want to lower my LLC or vcore, but my vdroop is awful. Getting 1.296v load voltage on 1.325v vcore so i'm worried to lower it due to instability (according to CPU-Z).

Cinebench R15 maxed out at 74c though. So what could my issue be since I saw people reporting 67c load temps on 9900ks with this cooler.

Please help :(
 
So I think part of the problem might be the pump (absolutely brand new 360mm aio) but the radiator always stays cold. I can hear the pump doing stuff and I am currently running the aio with the radiator outside the case and moving it around to release air bubbles but temps stay the same. It's an Arctic Freezer II so theres a single 4 pin cable that's supposed to go into the cpu fan header.

I've got a spliter in the fan header that the aio is plugged into and my cpu fan hub is plugged into as well, in the bios I've gone to the monitoring section and selected aio pump to dc mode, but even when I'm doing a prime blend test and I get to 95c+ the radiator still is cold. Ignoring and overclocking stuff I think somethings wrong here with the cooling since my weak sauce 240mm would achieve better temps... I thought it's the mounting pressure but I've recounted with kryonaught twice and I'm scared to tighten the screws any harder at this point. But the bottom line is my radiator doesn't heat up
 
2 intel burn standard stress tests got me to a peak of 91c but stayed in ok temps, so the pump cant be dead but the rad stays cold no matter what. I could try recounting a 3rd time but I really cant see why I cant get good contact
 
Brand spanking new. But within the past hour while the system was on I unmounted the radiator and moved it around, and at some point the pump was making a kind of crunchy sound then eventually went silent (presume air bubbles) but the temps never changed. So considering its not getting severely bad temps and the pump sometimes makes noise, i don't think its dead, but as i say no heat in rad and it has been given good reviews so i dunno. What should I try beyond another remount of the block?
 
I tried plugging the cooler into an AIO pump header that I have on my board but on the bios it immediately was climbing temp, I also get the same results whether i have the AIO plugged directly into the cpu fan header, or plugged into the splitter. But if I plugged the AIO into the cpu header, where do I plug my cpu fan hub that controls the rest of my fans?
 
This cooler has 3 fans, 1 VRM fan and the pump all connected to 1 4 pin connector so If I set that to 100%, the fans will also be on 100%. I thought settings the AIO_PUMP to DC mode in the bios under monitor would give me 100% pump and separately allow me to control the fans on the curve?
 
I'll see what happens if I set the whole system to 100%, although this happens anyway during high temp stress tests, and as I mentioned even with permanent temps above 80c on all 8 cores I cannot feel any warmth whatsoever on the radiator.

To reiterate i'm not concerned with 90c+ in prime-95 as I'm seeing 74c peaks on cinebench r15 which isn't terrible, however the radiator never heats at all.
 
So no matter how cheap it is people have got good temps off it, but no matter how bad or good it is, the radiator should be getting hot, or at the bare minimum warm. When I say its cool its actually cold metal. Just set everything to 100% dc mode and temps are the exact same
 
I also was previously using a 240mm mastercooler top mounted with push fans that weren't even static pressure beating these temps. That cooler cost me £40, this has a nearly twice the radiator density, 3x the fans and maybe twice the tube diameter, just based off physical differences it should be performing better than that cheap 240mm and be getting warm. Somethings clearly wrong >.<
 
Gaming. I get like normal 50-70c playing RDR2.

I think your missing my point though. Temps are nearly irrelevant unless we're talking 50c idle or something. If the radiator in all scenarios remains cold to the touch, there has to be an insufficient transfer of water from the block to the rad right? Theres no way even 90c translates to a frozen radiator
 
Even if thats the case, why is it that every other video I've seen, even people with higher OC using 9900k's are getting 15-20c+ better temps? Is it even possible that an aio can be so cheap under full function it transfers no heat to the rad at all? It's as cold as If I left a piece of metal outside
 
I did try to use the AMD ones as they are shorter and hoped that would be better for mounting pressure, however the threads didn't match and physically couldn't screw them down. But everything is mounted as hard as i'm comfortable with to not actually damage the cpu
 
No, the 100c was using the latest version of prime95 which people ha e said is way over the top for modern intel. Using version 26.6 and keeping it running for as long as possible to see if the rad is going to heat up at all
 
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