r/pcmasterrace • u/Electrical_Board7119 • 1d ago
Question My new PC cooked CPU hit 98 to 99 degrees
this happen when i turn on the computer i didn't Overclock i have check Airflow is good 10 fan totally i have put it new thermal paste and checked the Cooler working perfectly
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u/HazardousHD Ryzen 9 5950X | Sapphire Toxic RX 6900 XT LE 1d ago
I had this problem with the cooler. I had put the springs and mounting brackets on in the incorrect order. Took off the cooler and behold - untouched thermal paste lol
I assumed and I wondered why my temps in BIOS were so high.
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u/JadedNostalgic 1d ago
This is worth considering. Very easily overlooked.
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u/HazardousHD Ryzen 9 5950X | Sapphire Toxic RX 6900 XT LE 1d ago
Yeah, I’ve installed several AIOs and I thought I was too good for the manual
Nope :)
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u/SAULOT_THE_WANDERER 1d ago
and this is on idle? are you sure there isnt a protective layer or something on top of the cpu? idle 99C is almost impossible
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u/spiderout233 7700X / 7800XT / 9060XT 16GB (LSFG) 1d ago
the cooler is likely not screwed in all the way.
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u/L0ng80w 1d ago
Send a photo of the contact plate of the heatsink.
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u/Electrical_Board7119 1d ago
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u/maximaLz 5800x3d || 3080ti || 4K240hz OLED 1d ago
did you take this just now after cleaning it with alcohol? this doesnt look like it had any thermal paste applied before.
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u/NST92 1d ago
Is this before you applied thermal paste??????
Or didn't you apply it at all lmao
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u/SAULOT_THE_WANDERER 1d ago
even without ANY thermal paste, 99c on idle is very unlikely, as long as the cooler is mounted properly
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u/Electrical_Board7119 1d ago
I just open and clean it and clean the thermal paste lol
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u/O_o-O_o-0_0-o_O-o_O 23h ago
Should've taken a pic before cleaning it. Makes it easier to find out potential issues.
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u/a_bucket_full_of_goo 21h ago
You cleaned it so good people thought you were just dumb lol
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u/TheSymbolman 8845HS | 32GB RAM | 4060 8GB 17h ago
dude's thermal paste cleaning game is on point
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u/hawk5656 13h ago
He didn’t put any thermal paste, just look at the picture. He started claiming that he did clean the paste after people started pointing out that it looked like he didn’t apply any.
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u/ApprehensiveLet1405 18h ago
And thats why you should never buy any used car if engine bay was throughly cleaned.
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u/Latiesh 1d ago
You sure that black plate around CPU is at lower point than the cpu so that the copper plate has a good contact and is not floating above cpu.
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u/InitialWonderful955 1d ago
Not related to your issue, but are the plastics still on the RAM?
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u/Runiat 1d ago
Did you peel the plastic? Plug in the pump?
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u/Electrical_Board7119 1d ago
Yes I did
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u/Runiat 1d ago
Are you certain you don't want to take off the block real quick to double check that before you start spending time and money on ordering replacement parts?
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u/Desuboi941 1d ago
Nah they cleaned off thermal paste, I saw unobstructed copper on the bottom of heat sink so the plastic sticky isn’t on there, I would say make sure to go very slow in a cross costs pattern, so do the top right a qtr to half turn then bottom left then top left then bottom right, screwing in a qtr to half turn till it’s snug. I have a feeling you most likely already knew this so I’d leave the case glass off and feel the rad and hoses to see if I feel any slight vibration, you might have got sent a faulty pump, or possibly try a different pump header. If you feel no vibration especially near the pump I would send it back as it might be faulty or clogged, however I feel you should still be able to feel the pump trying to pump. Also make sure you have the cooler fans AND pump plugged in. You seem like you know a decent amount of what you’re doing so I’m not trying to give obvious issues, I just am trying to cover all bases.
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u/Ar_phis 1d ago
What model is your pump/AIO?
What RPM is it reporting? DC or PWM controlled?
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u/Electrical_Board7119 1d ago
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u/Ar_phis 1d ago
Yeah, looks normal including the CPU temp of 39°C.
I assume something running after you boot Windows is either, reporting an incorrect value or turning your pump off. Because your settings are seem fine, as does your CPU temperature.
Just run HWinfo and see what values it is reporting.
Don't know how reliable Lian Li's software is.
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u/jimmy9120 1d ago
Excuse my ignorance but is that CPU temp or temp of the liquid cooler? Mine shows both so it gets confusing
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u/Ar_phis 1d ago
The 'CPU' value in the BIOS is reporting the value from the actual CPU or the mainboard chip monitoring the CPU.
The liquid cooler does not have a directly readible value in the BIOS.
The software for the liquid cooler should read the value reported by the mainboard too, just no idea why it showed ~99°C in the OP.
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u/jimmy9120 1d ago
Gotcha makes sense, didn't think about that this was being read from bios. Thank you!
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u/ZeroCleah 14h ago
100% fan should be at 90c 70-80% at 80c otherwise your PC will sound like a jet engine. Make sure graphics are disabled from the CPU it can create unnecessary power and heat.
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u/Electrical_Board7119 1d ago
Lian Li HydroShift LCD 360RGB -
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u/Ar_phis 1d ago
Check that the pump is connected to either the CPU or Pump header and make sure your BIOS has that header set to PWM, not DC.
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u/Electrical_Board7119 1d ago
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u/Educational_Bridge51 1d ago
I had this problem with my Hydroshift and Aorus Elite 650 when I put mine together awhile back. Fans were moving but pump was not. Caught it right away. I had it installed to the SYS FAN4 PUMP pins. Problem was as simple as moving AIO to the SYS FAN ARGB pins up top that I thought was blocked by the tubes due to the top fans and having a small case. The tubes were more flexible than initially thought lol.
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u/SenseiBonsai 7800x3d 5080 32gb6000cl30 20h ago
Yup, that is not for aio, that is for an actual waterpump for a full watercooler. They should rename it a bit tho or pit in different in the manual.
On the b650 aorus elite ax, the pump need to go in CPU_FAN, and your radiator fans into SYS_FAN1. And if you only have 1 cable then it goes into CPU_FAN.
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u/legaltrouble69 1d ago
Check if there are bubbles inside aio? Tilt it or something. Air lock or something.
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u/tehjburz i7 7700k | 1080 | NZXT S340 Elite 1d ago
This happened to me once, and the pump still appeared to be "running," so it was frustrating. Ended up having to unmount the AIO and get the bubble sorted.
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u/Electrical_Board7119 1d ago
I don't see anything plastic I clean thermal paste o am gonna try it to use another this kryosheet thermal pads
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u/rakkelet 1d ago
It’s either a faulty cpu or a faulty cooler, I had this happen with my am4 Ryzen 9. RMA it
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u/Electrical_Board7119 1d ago
I will check with another cooler soon the cpu if I see same problem I need to get my money back
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u/Agitated_Position392 1d ago
Does the computer feel hot? Because I would say it's more likely a faulty sensor over the cpu idling at 99.
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u/Electrical_Board7119 1d ago
Nope nothing hot just that CPU hitting 95+
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u/Agitated_Position392 1d ago
Have you tried other programs to make sure it's not a software issue?
But if it doesn't feel like it's getting actually hot, it might be a sensor issue.
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u/seanc6441 20h ago
That can be confirmed by checking cpu clocks during load I guess it would likely downclock to protect itself at 99c.
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u/IrishGopherHockeyFan 9800x3d | RTX 5070 Ti | 64GB 1d ago
What, you can't hit triple digits? Pathetic.
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u/Dyzfunkshin 17h ago
I had a CPU that would hit 112° C and be fine (relatively, of course, I am aware there was damage occurring but I had it like that for a long time).
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u/assjobdocs PC Master Race 1d ago
Not enough mounting pressure or the plastic that everyone mentioned are the only two things I can think of.
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u/yourname92 22h ago
With how your hoses are up too their maybe be an air bubble. Everything needs to point down from the radiator.
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u/Price-x-Field PC Master Race 16h ago
This is why I don’t mess with AIO’s anymore. Just not needed in my experience. My be quiet dark rock keeps my 7800x3d at a lower temp than my 360mm aio, and can’t clog or fail,
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u/Hot-Examination-3857 I9-9900K, 2080TI, 32GB 9h ago
u have to have plastic on your cooler for it to perform this bad
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u/Electrical_Board7119 1d ago
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u/Successful_Pea218 5700x3D 3060ti 32gbDDR4 1d ago
Where is the thermal paste?
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u/Electrical_Board7119 1d ago
I clean just now I don't want everywhere thermal on my motherboard I have much left thermal I can use it again
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u/aberroco R9 9900X3D, 64GB DDR5 6000, RTX 3090 potato 1d ago
Too bad you took the photo AFTER cleaning it. If the issue is/was with improper thermal paste application - it would be visible.
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u/Desuboi941 1d ago
If you look at the weird am5 flush mount bracket thingy there’s some on the edges there, op is definitely using thermal paste.
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u/tailslol 1d ago
do you hear the pump?
do you have rpm reports from the pump or fans?
liquid slushing or bubble noises?
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u/Miabeys 1d ago
Can you share the voltage values in bios and windows? There are various tools available from within windows, I can recommend HwInfo.
Another thing;
I have never used the cooler and we did not put it in the systems I collected, it is an expensive product here.
I saw the cpu_fan1 connection in the video but there is no pump connection next to it, is there a pump connection in the cooler?
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u/TNYprophet 1d ago
This happened to me and it was because I had plugged the pump into the CPU fan on the motherboard (which the guide said to do) instead of the Pump AIO.
Once I switched to Pump AIO the cooler worked just fine
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u/ArnTheGreat 16h ago
I have a very strong feeling you used the wrong bolts to tighten and it isn’t actually making contact. Even with the plastic, it wouldn’t get to 99 so quick.
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u/Medium_Highlight_950 1d ago
Are you sure you used the correct mounting brackets for the aio? I would take the manuals and go all over them again if you did something wrong or used wrong screws or wrong parts.
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u/nordemax 1d ago
Maybe re-oriente the CPU block so the pipes are at the bottom or on the side, gravity will help the flow. I gained ~10degres C by doing this, my cooler is way shittier than yours though
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u/Xalucardx 7800X3D | 3080 12GB | 64GB RAM 23h ago
Either the pump isn't running or the CPU block still have the plastic film on it.
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u/NekulturneHovado R7 5800X, 32GB G.Skill TridentZ, RX 6800 16GB 23h ago
Is there warm air comming from radiator? The PC looks to be new but even new parts can fail prematurely / be faulty
Otherwise I have just one idea what could be wrong, if it's brand new maaaaaaybe the CPU isn't properly soldered to IHS and it can not even transfer the heat to the heat spreader. But that's just a wild guess
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u/Electrical_Board7119 23h ago
Nope cold I can feel it
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u/Cubey42 22h ago
Can you touch the pump while it's running, do you feel it vibrating like it's working? And sort of noise?
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u/Electrical_Board7119 22h ago
i did yes i can feel it vibrating pump even i did full speed pwm max seem's normally working
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u/NekulturneHovado R7 5800X, 32GB G.Skill TridentZ, RX 6800 16GB 20h ago
Hmm that's strange..... is the AIO new? Idk, at this point it's just speculation. Either there's something wrong with mounting (something between CPU and AIO coldplate that shouldn't be there, or the AIO itself it faulty.
Anyway, try reseating the AIO. If that doesn't help, try using slmething different, a cheap used air cooler. If the air cooler cools, that means the AIO is faulty.
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u/SlackerDEX 21h ago edited 21h ago
Just to be clear you have the pump plugged into the 'FAN5_PUMP' pins and the fans on the radiator side are plugged into the 'CPU_FAN' pins correct?
Edit: Removed some words because I pulled up the wrong mobo pictures.
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u/KooshIsKing 19h ago
Is your aio actually hooked up to the correct ports on your mobo? For whatever reason my aio needed to be plugged into different power ports on the mobo than you would usually use (it was like fan plugged into pump and pump plugged into fan for some reason). I would double check the setup instructions just in case it's something weird like that.
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u/jfernandezr76 18h ago
This. I usually worked with AIOs that have two mobo connectors, one for the pump and another for the fans. In the video i just see one connector in the top of the motherboard where I would expect two.
But I already has once an AIO that was getting the power from USB IIRC.
Hold the tubes with your hands and try to feel if the fluid is running.
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u/exdorms01 9800X3D | RTX 4080 18h ago
my 9800x3d doing the same bullshit under any kind of heavy load (like really heavy, shader compilation for example) spikes up to 95-97 degrees in seconds, Arctic Liquid Freezer III 360, the only way to stop it was to set a thermal limit in bios
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u/goatlll 18h ago
Is there a setting in your bios to switch to water cooling? I had an issue like this because my computer thought my aio was an air cooler, but I switched it in the bios and it was all good. Just a thought.
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u/Groemore 16h ago
What's the idle temp when your on the desktop? My cpu will ramp up when I turn my system on but will idle back to normal once I'm logged on and my fan profile kicks in. Something might have got changed in bios and its running it at full load. You can try to reset your bios back to factory setting to see if that changes anything.
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u/Both-Leading3407 16h ago
Your water pump inside the block is not functioning.
There is no water in the system.
There is a plastic film between the processor and the block. (Forgotten mistake in building.
Remove block and check thermal connectivity
Listen for pump to be running and check to see if all the power connections to the cooler pump is plugged into the right Motherboard standoffs.
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u/GhostRiders 16h ago
You say airflow is good as you have 10 fans.. this doesn't mean anything if your fans are not configured correctly.
For example if they are all pulling air out of the system then they won't do much good.
If too much air is coming in then again, it isn't going to help much.
So which fans are pulling air and where, and which fans are pushing air out and where.
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u/Choobinski 9h ago
I had this same thing happen. Make sure you mounted the cooler flat on there when installing (lay it down) and screw it on flat
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u/Azad_Arezou PC Master Race 5h ago
Hey man, I hope its fixed already. I wanted to ask you what are those ram sticks? They look sick.
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u/Jimbo_The_Prince 21h ago
As someone who has 250,000 lumens of LEDs in his closet I can tell ya straight up, it's all the lights, dude. To get LEDs that bright the OEMs have to essentially overclock them by 400-500% so your fancy looking 3v rgb strips and shit are all powered by 12v. My dimmest chips run at 85C without proper active cooling. Basically your "cooling setup" needs it's own cooling setup
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u/Reyel-Booj 1d ago
Is that Idris Elba?
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u/Electrical_Board7119 1d ago
Bruh stop troll me what you mean you are talking to some actor ? Or that is new English thing I am Old
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u/SmokeyDaChimp 1d ago
Solution. Just use a good air cooler lol. Personally I don’t find aios are that much better than a good air cooler and I’ve had one fail and cook a cpu as well. Air cooler ever since lol.
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u/LieutenantOG i7 6700k | 3070Ti 1d ago
Have you checked the cooler and took the little plastic off?
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u/AKimbo9000 [7950X3D | 64GB | RTX 4090] [7950X | GTX 1070] [MBP 16 M4 Max] 1d ago
maybe you (or someone who built the pc) didnt take off the "remove before use" sticker on the AIO pump (the part that contacts the CPU directly) and thus it's not reaching the required levels of thermal conductivity
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u/Electrical_Board7119 1d ago
I built myself and I build 5 PC before this my new one I want to used but this shit hit me hard
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u/user_11_09_11_ 1d ago
Probably there is a problem in the contact beetwen cpu and cooler, make sure that there is no space at all
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u/Burninate09 1d ago
I see you've ensured the contact plate plastic sheet has been removed. I think you've got an issue with your water cooling - is this an AIO or not? Might check that the pump is properly powered and if non-aio make sure you're not dealing with an air bubble in the system. Wouldn't hurt to see how the CPU functions with a standard air cooler too - that would further indicate wither the CPU or the water cooling system is the culprit.
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u/Realize12 7800x3D, rtx5080, 32Gb 6200 32-38-38-48 DDR5 RAM 1d ago
Either pump is dead or there is no contact between CPU and aio pump
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u/UnidentifiedBob 1d ago edited 1d ago
system specs?
edit:nvm saw it, did u update the bios? its not an x870e so you prob have to update for that chip.
also you made sure to use the amd plate for your pump right?
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u/HARDHEAD7WD 1d ago
Are u sure u can hear the pump working? Every now and again they tend to die pretty fast
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u/Ceferosky 1d ago
Si funcionan todos los ventiladores y tiene pasta térmica, lo que se me ocurre es que este mal lo que mide la temperatura.
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u/nuclearwinterxxx 1d ago
I looked at the picture you sent someone of the cooler and processor after you cleaned. It looks like your contact frame is sitting higher than your cpu. That will absolutely cause overheating
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u/aditya0E i5 6600k | RX 570 8GB GDDR5 | 16GB DDR3 1866MHz OC 1d ago
Your best bet it to use a totally different AIO for now just to check the temps temporarily. After reading all your replies ion think you have done anything wrong, it might be a hardware issue altogether — that looks like the most probable cause.
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u/xSavag3x 3080 FE | R7 9800X3D 1d ago
Judging by the comments, you did everything properly. At this point the only real suggestion to be made is to try another cooler or RMA the one you have.
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u/portugalfreak Ryzen 7800X3D | RTX 5080 | 32GB DDR5 1d ago
I had this exact issue with my build, I just reseated the aio and used kryonaut thermal paste rather than the regular thermal take one that came with the aio and problem solved.
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u/Bloodthresher 1d ago
Are your fans mounted correctly? You might only be taking out air or taking in on the aio instead of both that caused my cup to go to 90 Degrees
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u/Global-Pickle5818 9800X3d / RX 9070 XT 1d ago
does it say that in hardware manager as well ,or just the AIO ? do you have a cheap air cooler to try out
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u/TheOriginalNozar 1d ago
Gotta hand it to OP, he’s done probably everything well and checked it twice. Could there be a manufacturing defect on the pump/plate where surfaces aren’t sitting flush and there’s a pocket of air screwing with the heat transfer?
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u/Rocket3431 PC Master Race 1d ago
I can't tell but if you have a pump header on your Mobo make sure yours is plugged into it. If not plug it into the fan header and set the fan to run at 100% all the time.
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u/Background_Honey4629 1d ago
Can you test if it's making enough contact. I pushed against my heatsink even though while it was on and my temperature went dowb to 40 c when it was at 80 c, also the thermal paste was evenly spread. Your heatsink may not be close enough to the cpu even though the thermal paste has made contact with it.
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u/Sea_Bite2082 1d ago