Question Ryzen 7950X3D with a 420mm AiO - - - it's above 60C at idle, 90C while booting ?

Jul 8, 2025
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Hello,

I recently changed my motherboard to MSi X870E Edge TI and now I'm battling an issue with high idle temps, absurd 90C when booting and instant 89C in Cinebench. I don't even know where to start with this circus.

Firstly, no matter what I do, no matter the settings in Bios or MSi Center, every single boot ends up with debug leds showing 90C core temperature, it then comes down (or doesn't, depends what sort of temporary solution I have in place).

Secondly - Cinebench:
First run with both push and pull fans at ~1050RPM and pump at ~2800RPM - Multi core score was 29409 (23 passes), single core score was 1820 (2 passes). Multi core instantly hit and stayed at 89C, clocks for the first 15 passes stayed between 4100-4200Mhz, then 4000-4100, single core never exceeded 5000Mhz between C13 and C14, but kept jumping in the range of 3000 to 5000.
Second run was at full cooling capacity, push fans at ~1800RPM, pull fans at ~1450RPM, pump at ~3000RPM - Basically the same as before, 29735 multi core score and 1821 single core score at same amounts of passes. Also instant 89C in multi core with no more than 4200Mhz across all cores and also no more than 5000 Mhz between C13 and C14 with same frequency jumps.
That was before I tried uninstalling MSi Central (another tryout of temporary solution), now clocks don't even touch 4200Mhz, they hover around 3900Mhz in multi core.

Thirdly - MSi Central, HWInfo and Ryzen Master show completly different readouts when it comes to the clocks - MSi Center says it's 5Ghz flat and constant, HWInfo says some cores sometimes go down to 3,3Ghz and Ryzen Master says that at idle only two cores work at 600-1200Mhz.

Moreover, the idle temps of 60C or more was already happening after a fresh install of Windows, so it was not a result of some tweaks. And the more I try to solve this with Bios or MSi Center "User Scenarios" the worse the temps get. An hour ago I reached 71C idle, I tried uninstalling MSi Center with MSi's own uninstaller, thinking that maybe it's messing with something - not only did MSI Center refused to fully uninstall, it also severly lowered my clocks (as mentioned above, in regards to what happened in Cinebench), but unexpectedly also lowered my temps below 60C, if you can call 59,5C that.

I don't know if it's thermal throttling, some weird Bios settings, MSi Central messing everything up or what, but I need help to resolve this issue, because as things stand it's either ridiculous temps with possible thermal throttling or 60C with clocks lower than they should be. Never once did I manage to get below 55C in idle (and that was a one-time fluke), which is already 30C above my ambient temp.

EDIT:
I reinstalled MSi Center, here's what happens - if I select User Scenario "Silent", then my idle temp is 60C with most cores at 3,6Ghz and two from non-Vcache CCD at 4,2Ghz (according to MSi Center, Ryzen Master shows between 600-1200Mhz), Cinebench multicore is stuck at 3,9Mhz on all cores and immidiately hits 89C. If I select User Scenario "Balanced", then my idle temp is 71C with Vcache CCD at 3,6Ghz and non-Vcache CCD at constant 5Ghz (again, according to MSi Center, Ryzen Master still shows 600-1200Mhz on two cores), Cinebench still hits 89C in an instant, but at least all clock are at 4,2Ghz.

Here's the rundown of the cooling setup:
AiO - Corsair LINK H170i, 3x QX140 in push, 3x RX140 MAX in pull, top mounted as exhaust (back mounted LX140 as additional exhaust)
Intake - Front 4x QX120, side 4x LX120-R
Case - Corsair 7000D

And here's the long list of possible solutions/checks that I tried and none worked:
1. Reapplying fresh thermal paste multiple times and in different patterns (MX-6 and Kryonaut) - no change
2. Different mounting positions on the AiO - top (like it used to be) and front, both with same temp results
3. Changed the stock MOBO mounting to Thermal Grizzly contact frame and back - no change in temps
4. Checked multiple times the AiO pump mouting, to be sure it's not too tight nor too loose
5. Played around with Ryzen Master and changed the control mode from Default to Eco - no change in temps
6. Played around in Bios with different settings, mainly X3D Gaming and PBO - no changes
7. Played around with Windows settings and power plans - no change in temps
8. Updated the Bios and every other relevant app or driver
9. Checked PSU (RM1200x Shift) connections multiple times, I have 2 EPS 8 pin cables connected to the board, same as before
10. I ditched the MSi Center settings
11. Switched my power plan to Balanced
12. Reinstalled chipset drivers for AMDs website
13. Set PBO to auto
14. Set CPPC to Driver
15. Found some info about AMD Cool'n'Quiet, I've found that in my Bios something similar is named Global C-state Control, it was set to auto, which supposedly functions as enabled, but I also switched it to enabled
16. Checked the processes and CPU usage, nothing weird pops up, basically all processes are below 1% usage and the CPU in idle is around 2-6%, with 2-4 cores working
17. Checked the temps with HWInfo - CCD1 and CCD2 are both at ~52C average. CPU (Tctl/Tdie) is at ~62C average with a max of 70.4C Core temps are at ~44C for CCD1 and ~48C for CCD2, with max temp being around 4-5C more, apart from one core - Core7 on CCD1 with max of 55.3C. CPU Hotspot at 58C with max of 59.5C, no weird readouts
18. This is the weirdest one - I've set all my fans to basically 100% speed, NOTHING, literally zero change in temps, still 60 degrees and I've run this test for a solid 20 minutes
19. Lastly checked my AiO - there is no significant difference between the tubes, one is warmer just enough to know which is which, no weird sounds even at 3000RPM pump speed
 
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Welcome to the forums, newcomer!

I recently changed my motherboard to MSi X870E Edge TI
What did you change from? For the sake of relevance, please mention the BIOS version you're on for your current motherboard?

As for the motherboard swap, as you haven't mentioned it in your list f things you've done prior to this thread's creation, did you recreate the bootable USB installer for your OS and install the OS in offline mode, manually installing all relevant drivers while in offline mode?

What version of Corsair's iCue app are you working with?

To me it seems like your AIO might have cavitation. Would be a good idea to inform your seller and Corsair in case you need to RMA the AIO.
 
@Lutfij
I changed from X670E Crosshair Hero and on this board my temps were 45C idle and 65C load at most. But recently it kept giving me more on more issues (non temp related, more so stability) to the point I had enough of troubleshooting twice a week. Well, not much has changed, since it's been 5 days straight battling with the new board.

Anyways, newest Bios on the current board, E7E59AMSI.1A43, same for iCue, latest release (5.30.90).
As for the Windows install, I did create a bootable USB installer, but I'm not sure what do you mean by offline mode? So I guess I did not.

@drivinfast247
So I should just reinstall Windows again, straight up?

Also, now I have another problem that prevents me from doing anything - PC started to freeze and reset. I can log in, some apps start, like iCue can initialize, then 30 seconds or slightly more and it freezes and restarts.
Well, at least this resolved itself, no idea what happened, but on one restart MSi Center popped up and wanted to install itself (even though it was already installed), but at least now I can use the computer.
 
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Having multiple apps that monitor parameters can cause issues. I know for a fact that HWinfo64 causes iCue to bug out. Use only one app at a time.

This instability leads me to possible RAM issues. Download memtest86 to a thumbdrive and follow directions to run test to completion. Any more than zero faults is a total failure.
 
Don't reinstall Windows over temperatures..

If you have space, dual boot a fresh copy of Windows or Linux and check to rule out software. Your new MB could be a lemon and something is simply off not making proper contact (socket or block mounting). Live disc might even work.

iCue is a bastard to deal with and once I have things working in it I don't ever touch it again, I agree with that.

I don't disagree a fresh install may be needed but it shouldn't be a first step IMO

Sidenote; I'm amazed it even booted after the swap. Ryzen for me has been a game I don't like playing when switching between MB and RAM.
 
@drivinfast247 Let me add context - like I said the issue resolved itself after MSi Center prompt to install it. Before making this thread the system was rock solid stable - benchmarking, gaming - no issues at all, the only constant problem are the temps.

All of the parameter monitoring apps were run single file, I just used multiple ones to get more data I can work with.

After all the things I tried I came to the conclusion that this is either a cooler issue, like @Lutfij mentioned, so earlier today I preemptively ordered an ID-Cooling FROZN A720, or some software/Bios settings messing things up. The latter I'm sorta sure is the case, if only partially, because changing the "User Scenarios" in MSi Center has huge implications, but I don't know whether I should reinstall Windows without it or leave it be. Currently I have nothing selected in this god forsaken app, clocks are down across all cores with just two doing any work, but it's still 60C idle. Cinebench is still causing immidiate 89C - when the test starts cores go up to 4,4 - 4,5 and then they drop off, because of the clear thermal throttling. Otherwise the system is stable, for now.

@SyCoREAPER I'll be honest - I'd rather not install second Windows if possible, I've got some trauma thanks to the one Windows update that went wrong and I involuntarly had 2 Windows installs (something to do with windows.old not wanting to delete itself). That said, I'm completly fine with reinstalling Windows as many times as it takes, it's not even inconvenient anymore, because all my data is, let's say, "modular", I can get to where I was in less than half an hour after reinstall at this point.
I don't really have a problem with iCue, most issues I've had with it were caused by Armoury Crate that got installed with my previous board, because it prevented iCue from updating it's devices. Also a fun-fact - initially I just straight-up transplanted everything onto the MSi board, along with the drives, didn't even bother with formatting or doing fresh Windows install and it booted no problem, it was a bit later that I decided to do the first fresh reinstall to maybe get rid of this problem with temps.

EDIT:
I just tried to run a game - during loading screen CPU hit 89C and then PC instantly turned off. So - it's most likely that the cooler is dead, correct?
 
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@drivinfast247 Let me add context - like I said the issue resolved itself after MSi Center prompt to install it. Before making this thread the system was rock solid stable - benchmarking, gaming - no issues at all, the only constant problem are the temps.

All of the parameter monitoring apps were run single file, I just used multiple ones to get more data I can work with.

After all the things I tried I came to the conclusion that this is either a cooler issue, like @Lutfij mentioned, so earlier today I preemptively ordered an ID-Cooling FROZN A720, or some software/Bios settings messing things up. The latter I'm sorta sure is the case, if only partially, because changing the "User Scenarios" in MSi Center has huge implications, but I don't know whether I should reinstall Windows without it or leave it be. Currently I have nothing selected in this god forsaken app, clocks are down across all cores with just two doing any work, but it's still 60C idle. Cinebench is still causing immidiate 89C - when the test starts cores go up to 4,4 - 4,5 and then they drop off, because of the clear thermal throttling. Otherwise the system is stable, for now.

@SyCoREAPER I'll be honest - I'd rather not install second Windows if possible, I've got some trauma thanks to the one Windows update that went wrong and I involuntarly had 2 Windows installs (something to do with windows.old not wanting to delete itself). That said, I'm completly fine with reinstalling Windows as many times as it takes, it's not even inconvenient anymore, because all my data is, let's say, "modular", I can get to where I was in less than half an hour after reinstall at this point.
I don't really have a problem with iCue, most issues I've had with it were caused by Armoury Crate that got installed with my previous board, because it prevented iCue from updating it's devices. Also a fun-fact - initially I just straight-up transplanted everything onto the MSi board, along with the drives, didn't even bother with formatting or doing fresh Windows install and it booted no problem, it was a bit later that I decided to do the first fresh reinstall to maybe get rid of this problem with temps.

EDIT:
I just tried to run a game - during loading screen CPU hit 89C and then PC instantly turned off. So - it's most likely that the cooler is dead, correct?
Its either a BIOS config wrong somewhere or iCue thinking it's doing what it's supposed to or a chip set issue (hence Windows issue- fresh install).

If you need to do a fresh install, it can't hurt to dual-boot. If you don't want to dual boot, Live Windows or Live Linux and look at the temp under stress.
 
@SyCoREAPER Well if it is a Bios config then I don't even know what I'm supposed to look for, most of the Bios settings on this board are set to auto from what I saw.

Also I kinda sorta managed to get the core clocks under control - most of them are running at 3,6GHZ according to MSi Center and HWInfo with only two doing work at 4,2Ghz - still even with normal clock speed for idle (I think) the temp sits at 60C. And there's that issue with PC turning off during game load.

What leads you to believe it's software side and not a cooler that gave up on life?
 
@SyCoREAPER Well if it is a Bios config then I don't even know what I'm supposed to look for, most of the Bios settings on this board are set to auto from what I saw.

Also I kinda sorta managed to get the core clocks under control - most of them are running at 3,6GHZ according to MSi Center and HWInfo with only two doing work at 4,2Ghz - still even with normal clock speed for idle (I think) the temp sits at 60C. And there's that issue with PC turning off during game load.

What leads you to believe it's software side and not a cooler that gave up on life?
To start, Set the curve offset/optimizer to negative 15. If it's stable you can go to negative 20. If you won the lottery and have a high-bin CPU you might reach up to negative 30.

This should drop the temps, how much in your situation I don't know how much but will drop the temps with virtually no performance loss.
 
To start, Set the curve offset/optimizer to negative 15. If it's stable you can go to negative 20. If you won the lottery and have a high-bin CPU you might reach up to negative 30.

This should drop the temps, how much in your situation I don't know how much but will drop the temps with virtually no performance loss.
Oh, that. Well I actually did that starting with -15, but it didn't really help, if anything after doing this my temps were higher (I think it was 70C idle in that run and it kept going up), but I'm not sure if it was caused by this tweak only or at all, if I remember correctly on this same boot I've had 5Ghz clocks across all cores. I reverted that change and never touched anything other than basic PBO presets. Well, I'm sceptical to be honest, but I'll try this since my core clocks seems stable now.

Additionally I seem to have a new problem - now my PC randomly freezes and restarts. No idea what causes this and it's completly random - sometimes it freezes just after getting to Windows and sometimes after quite a bit, like 20 or more minutes.
 
Oh, that. Well I actually did that starting with -15, but it didn't really help, if anything after doing this my temps were higher (I think it was 70C idle in that run and it kept going up), but I'm not sure if it was caused by this tweak only or at all, if I remember correctly on this same boot I've had 5Ghz clocks across all cores. I reverted that change and never touched anything other than basic PBO presets. Well, I'm sceptical to be honest, but I'll try this since my core clocks seems stable now.

Additionally I seem to have a new problem - now my PC randomly freezes and restarts. No idea what causes this and it's completly random - sometimes it freezes just after getting to Windows and sometimes after quite a bit, like 20 or more minutes.
That's not possible.

I'm not calling you a liar, just that it's not possible to be stable, lowering power to the CPU and have higher temps.

I'm leaning that your OS is cooked.

I have no other suggestions but what I said before. Dual Boot or Live CD stress test prior to (likely) needing to reinstall.
 
That's not possible.

I'm not calling you a liar, just that it's not possible to be stable, lowering power to the CPU and have higher temps.

I'm leaning that your OS is cooked.

I have no other suggestions but what I said before. Dual Boot or Live CD stress test prior to (likely) needing to reinstall.
I know how it sounds, but like I said, maybe it was caused by a different thing altogether and I just tried it at a wrong time, at that point my clocks were still locked to constant 5Ghz. It's only recently that I somehow managed to get them under control.

However, I just tried -15 like you said and immidiately crashed in Windows.

I also got a message from Corsair tech support and their stance is that the AiO is dead.
 
I know how it sounds, but like I said, maybe it was caused by a different thing altogether and I just tried it at a wrong time, at that point my clocks were still locked to constant 5Ghz. It's only recently that I somehow managed to get them under control.

However, I just tried -15 like you said and immidiately crashed in Windows.

I also got a message from Corsair tech support and their stance is that the AiO is dead.
That could be because of the existing heat but then you'd just go up until it's stable (-10). If the AIO is dead, which would seem odd depending on the age.

Before trying a new AIO, make sure there's no air trapped in the pump. There's some videos YouTube how to rotate it to move them out of the loop and into the rad
 
That could be because of the existing heat but then you'd just go up until it's stable (-10). If the AIO is dead, which would seem odd depending on the age.

Before trying a new AIO, make sure there's no air trapped in the pump. There's some videos YouTube how to rotate it to move them out of the loop and into the rad
I doubt it's old, I'he had that Aio for the last year and a half, worked like a charm. What bothers me most is that I've had problem from the moment I switched to this motherboard. Ever since that point I've been having these issues with temps. Now I can't even use this PC, because it constantly freezes and restarts after getting into Windows. And I've already reinstalled Windows once thinking it could solve the issue, but it did not. It's gotta be either the cooling, which I'm going to replace with an air cooler just to check or default Bios settings on this board are making it unusable for me. I doubt 75C core temperature is normal when I'm changing settings in Bios if the cooler was working. And on the other hand, most Bios settings on this board are set to Auto and I have absolutely no idea what should I change. For all the problems I've had with my previous board (Asus X670e Hero) regarding stability and constant weird issues with black screens, blue screen or audio glitches, never once did I have any problems with thermals on that board, just plug and play.

EDIT:
I reinstalled Windows yet again - 85C during boot, 60-65C idle, all cores jumping between 3,3 and 5,1Ghz according to HWInfo. I only installed Chipset Drivers, HWInfo and Ryzen Master. And now Ryzen Master even shows that all cores are in a sleep state sometimes with peak speed across active cores of 170Mhz... While idling at 63C.
@SyCoREAPER Apologies for me taking the liberty in tagging you, but I'm curious what do you think about this, especially after your suggestion that my OS might be cooked.

EDIT2:
Now I can confirm that your suggestion to play around with Curve Optimizer is kinda sorta working - PC is currently stable at -15, but that doesn't really make a difference in temps, it's still ~61C idle and instantly hits 89C in Cinebench multicore.
 
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I'm going to bump this thread one and only time in case someone might have another clue as to why my temps are this high.

Like I said in the edits above, I reinstalled Windows and I did not install MSi Center this time, I'm confident nothing Windows related is causing this issue.
As things stand my PC still idles at 60-65C and hits 89C during boot, stress testing and in loading screens of games, yet even though CPU hits it's thermal limit it still manages to cool down.
However, something quite interesting happened - after I left my PC turned off for close to 15 hours, first boot up started same as always, 89C, but then it gradually went down to 51C. The longer the PC was on, the higher the temp was and after some time passed it got to the usual 61-65C range and never went lower than that.
As per SyCoREAPER's suggestion I tweaked my Curve Optimizer and all of the above happens at -25 across all cores. The system is still very stable, I could probably push it even higher, but I see no point in doing that if it still doesn't lower my temps in the long term and doesn't even resolve the biggest issue with hitting the thermal limit.
Core clocks seem to behave like they should, CPU hits 5,2Ghz during gaming and what not, Cinebench multi core causes all cores to hit 4,6Ghz for a brief moment, but they go down to ~4Ghz due to 89C. As for gaming loads, I played Rematch for 2h, 80C at all times and 87-89C during load screens.
All of this leads me to believe it is indeed the AiO that failed in some way. After reaching out to Corsair they believe so too and offered me to replace the AiO. I'm still waiting for the replacement air cooler to arrive just to have another option to be sure. If it's not Windows nor the cooler, then I guess it's Bios settings that are causing this mess (just for context, I loaded optimized defaults, then from there changed the CPPC, Curve Optimizer and thermal limit, didn't even bother to touch RAM at this point).

EDIT:
It was indeed AiO that failed - after replacing it with FROZN A720 idle temp sits at 43C and Cinebench multi core topped at 82,5C with all cores at 5Ghz.
 
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