Processors

[Vivram]

Greetings everyone,

I'm hammering together a PC with this specs:

CPU: AMD Ryzen 7 5800X3D
Motherboard: Asus TUF Gaming X570-Plus (Wi-Fi)
Ram: Kingston Fury KF3600C18D4 4x16GB
GPU: AMD Radeon RX 6750 XT
PSU: Cooler Master MWE Gold 1050 - V2
Case: Phanteks Enthoo Pro

What I am about to describe is the behavior that happened the same in all the tests I did.

All tests have been made with both the side panels of the case open, and a room temp around 24-28°C.

Idle temps between 35-40°. Stress FPU test with AIDA64 sees temperatures instantly (maybe 2 seconds) jump to 90°C and stay there. Ryzen Master confirms the temps. The backplate on the motherboard gets warm, the mobo is warmer, the heatpipes going from the cpu plate to the heatsink's fins are barely at body temp, so around 35°C, same as the plate directly above the cpu (reachable removing a fan).

The first cpu cooler was a Thermaltake Toughair 710. I thought it might have been faulty, so I got a Deepcool AK620. No change at all. So it's not the cooler itself.

I thought it might have been the mobo bending under the weight and preventing a good contact, so i turned the case on the side, tested both with the cooler pressing and with the cooler hanging. No change.

It's like the thermal paste is acting as an insulator rather than a conductor but I've tried different brands, different amounts, different way to spread it, and nothing has changed.

And that's the issue. Yes, I know that cpus get hot during a stress test, I expect that. Yes I know that the 90° is a temp set by AMD as max for safe operations. That's why I picked good coolers, I wanted to be safe. But shouldn't the heatpipes of the cooler get hot from the heat? I'm not talking about the fins, or the tips that poke out from the top, I'm talking putting my finger where the pipes bend coming from the area in contact with the cpu and going to the fins. Those can't be barely (if at all) warm while the area around the cpu gets hotter, can't they? And even more so the plate that is right above the cpu.

I mean if the cpu is working and truly getting hot (as confirmed by touching the area around it) then so should the parts of the cooler touching it while they transfer the heat from the cpu to the fins area, except that ain't happening and I can't believe 2 different coolers, from different manufacturers, are defective in exactly the same way.

So it has to be the cpu itself right? But... how? Or something else?

Please help, thank you

[BillyFeltrop]

Based on the search results, it seems that the AMD Ryzen 7 5800X3D CPU is known to run hot, and it is normal for it to reach temperatures up to 90°C under stress. However, the behavior described in the question, where the heatpipes of the cooler are barely warm while the area around the CPU gets hotter, is not typical. It is possible that there is an issue with the thermal paste or the cooler installation. Here are some suggestions to troubleshoot the issue:

• Check the thermal paste: Make sure that the thermal paste is applied correctly and evenly. Try reapplying the thermal paste using a different method, such as the pea method or the X method, and see if it makes a difference.
• Check the cooler installation: Make sure that the cooler is installed correctly and tightly. Check that all the screws are tightened properly and that the cooler is making good contact with the CPU.
• Check the airflow: Make sure that the case has good airflow and that the fans are working properly. Consider adding more fans or upgrading the existing ones to improve the airflow.
• Consider a different cooler: If the issue persists, consider trying a different cooler to see if it makes a difference. Make sure that the cooler is compatible with the CPU and that it has good reviews.

Hope this helps!

[Vivram]

Thank you for your time BillyFeltrop.

• "I've tried different brands, different amounts, different way to spread it, and nothing has changed."
• All tests have been made with both the side panels of the case open
• The first cpu cooler was a Thermaltake Toughair 710. I thought it might have been faulty, so I got a Deepcool AK620.

Believe me, between the two coolers I've lost count of how many times I applied the paste. I've tried the rice, the lentil, the cross, the five dots, and many times my good old trusty even spread over the entire cpu. I've used CoolerMaster's Mastergel Maker and Mastergel Pro, aswell as the paste provided with the coolers. Aside from using stupid amount of paste (both too much and clearly not enough) I've tried a lot of combinations.

Despite some small differences, both coolers installation is really simple and straightforward. All the proper screws were used, well tightened, and I've even find out that the coolers and the mobo support are interchangeable, as they line up. About the contact with the cpu, I've tried running a less stressful test from AIDA which puts the temperatures around 70°C, and slowly unscrew the 2 keeping the coolers in place. While I did this test only once per cooler, it wasn't until i could almost feel the towers get loose that temps didn't start to raise a little. A quick tightening and temps went back under control. CM Mastergel Maker was used in those tests. Admittedly, I was so focused on the temps that I didn't notice if the cpu was throttling in the meantime.

I've picked both coolers specifically because they should be more than capable to keep a 5800X3D under control. The Thermaltake is rated to have up to 250W of cooling power on its home page (with AMD's default TDP for the cpu being 105W), while the AK620 has been tested and reviewed many times and it's good. I mean neither is a Noctua NH-D15 but they're not far behind.

Keep them coming

[elstaci]

First thing your processor does have a high TDP rating of 105 watts so you do need a powerful CPU Cooler to keep it from overheating.

Also the Deepcool AK620 TDP ratings is 260 Watts which is a very strong CPU Cooler so your processor should never have reached the point of overheating by reaching it Maximum Operating Temperature of 90c.

But I have googled about your processor running hot and most agrees with @BillyFeltrop that it will reach 90c under Stress test with all cores running at 100%.

But if your processor runs below, lets say, 85c under normal PC usage no matter what loads then I wouldn't worry about it. Stress Test tends to put the maximum amount of load not normally encountered under normal PC usage. Stress test are used to identify hardware or software issues.

So I agree with @BillyFeltrop , sounds like an issue with the CPU Cooler installation.

When you install the CPU Cooler make sure that it is making an even tight contact to the surface of the processor and that all the screws are tighten down till then stop turning. Sometimes the motherboard might be warped by the CPU Cooler and not making good contact with the processor.

Make sure you have dual fans in the correct Push-Pull configuration otherwise it will not cool efficiently. Also make sure that the CPU Cooler is not pulling in hot air from the GPU card, if applicable and are working at 100% when it starts getting hot.

I have read threads here where a constantly overheating processor turned out to be a defective processor but in your case it isn't overheating even under heavy Stress loads like AIDA64 so it doesn't sound like a defective processor.

[Vivram]

Hello elstaci,

I agree with what you said but the reality seems different.

Both coolers should be able to handle it, but they don't.

I'm aware that stress test make cpu hot, that's expected, but even if a take a folder and make a few .7z/zip files of it at the same time, it will immediately jump from 35°C in idle to 85°C to 88/89°C and I can see in Ryzen Master the clock going from 4.3GHz to 4.0, 4.1GHz max and that's neither good or normal.

I'm sure that I install the cooler correctly, and yes the fan blow air on their corresponding tower, as per instructions.

All i do is I put the cpu in the socket, lock it in place (even gently push it down while it locks, just in case) put thermal paste on the cpu (with whatever the method I'm trying is), rest one of the locking screws of the cooler on the bracket, set the second, twist each a couple of times, make sure they're gripping, and then rotate each about 180° at the time, alternating between the two. Sure enough at some point one of the sides touches the cpu and the other follows, I keep screwing them until both can no longer turn. Put on the fans, plug them in the mobo, put the video card back in, plug the power and go on.

I'm doing all these tests with the case open, no side panels installed, so neither air temp or flow is an issue.

As I said in the op, what I can't understand is how it's possible that the heatpipes stay cold, as if the cooler is barely working, despite what I believe is a correct installation.

I'm very interested in those threads about the defective cpu, any chance you have some of those links at hand?

Thank you

[elstaci]

There is no harm is opening a AMD SUPPORT - WARRANTY ticket and asked them about your temperatures from here: https://www.amd.com/en/forms/contact-us/support.html

See if they believe you need to RMA your processor to be checked or replaced.

[Anonymous]

I have 5800x3d and wraith prism is cooling it. Its not often and for short amount of time when working at 100% temp is 90c and it will stay there but when gaming temp will reach 75c and for now I did not have problem.

I plan to upgrade cpu cooler in future.

[Angeluk]

Try to undervolt your CPU and keep the sides of your case open, open case must drop around 10 degrees, and undervolt another 15 degrees. you must get 50 degrees while gaming and 65-75 under 100% wokrload. Let us know how it goes.

[Arrow123]

Just dont let open sides IF you have good enough case fan congiguration there is no need to let side panel s open from longer periódy of tíme this makes more harm than good cuz you need good Air Flow cuz nôt only cpu and gpu need cooling but also Mother board chip set rams etc you know what i mean other cimponents need bé cooled as well so side panel s should stay on. Hell i have my r9 3900x overclocked to max and use stock Air cooler wraith prism and i just used thermal grizzy kryonaut plus i add 6x noctua chromax fans and temps drops to 38 in idle and CPU is overclocked and under game load max temps are 64degrees and avarage are arout 60 degreese but im playnning to upgrade to 5800x3d plus new deepcool ak500 or ak 620 well we see. 

[NewAtlantis]

Did you check your set fan curves yet?

[Vivram]

Oh yeah, even if I set the fan to run 100% after 50°C didn't change anything.

I'm more and more convinced the issue is a partial contact between the cpu and the radiator, since it does work at lower temps, but fails miserably once the load increases (any load for that matter, not even necessarily a stress test) and I can't see both coolers being faulty in the exact same way.

Right now I'm trying to make the shop where I bought the cpu understand this might be the issue, but apparently the concept of "if you put a big chunk of metal on a hot surface it has to heat up since metal conducts heat" is something unfathomable. According to them if the cooler stays cold ain't a problem, it's working as intended, no matter if the area around the cpu gets hotter and hotter from all the trapped heat. The real issue, you see, is that I'm not using a liquid cooler with a 3xfans radiator.

I'm "pushing the limits of thermodynamics" for suggesting that the plate that's in direct contact with the cpu has to be warmer than the tip at the end of the heatpipe as the heat spreads and gets diffused from the plate to the radiator. According to them the heat gets instantly transferred (much efficiency!) to the entirety of the cooler so no matter where i touch it, the temp will always be the same. Go figure

[Mali56]

Hello everyone.  I have samo problem, but only last two days! Suddenly my CPU begin hot, 90C or more. Not only in cinebench, in Games also!

I have TH240 AIO Thermaltake last 12 month end I NEVER reach 86C, not even with multiple cinebench test! In game was 78.

I try everything now, new cpu paste, HWINFO shows that Cpu Pump work fine 1400+ rpm, Radiator Fans work fine, around 3400 rpm under stres...and still I have almost immediately 90C I Cinebench...

Any idea? I had windows 11 update last two day? Thx

[misterj]

Mali56, I doubt you have the same problem, or the same hardware. Please open a new thread posting all your parts and screenshots of Ryzen Master Advanced View running Cinebench and at idle. Thanks, John.