Inspiring

Answered

very high CPU temperature during noise reduction with lightroom 14.2

Forum|Forum|11 months ago
April 5, 2025
4 replies
3742 views

Hello,

My CPU temperature easily rises to 95°C and then cools down again thanks to the fan. When I batch process 10, 20, or 40 photos, the same thing happens when exporting these photos to jpg files, and the process slows down considerably.

Hardware acceleration is enabled in both Lightroom and Photoshop. I have the latest NVIDIA graphics driver 572.83, completely cleaned of all unnecessary items using NVCleanstall.

I should also point out that I have an HP Omen PC with an i7 12700, and I know it's not as good in terms of cooling performance as a PC that has been rebuilt (my CPU fan is 92 mm, meh). But this problem is new, so is this the beginning of a technical problem for me, or is it a bug in Lightroom version 14.2? I would be very grateful to know if I'm alone in this situation or if others have already encountered this problem.

Have a good evening and a good day everyone, and thank you for your feedback.

Windows

Correct answer Ian Lyons

So everything seems normal?

I have an i7 12700 and an RTX 3070, and the effective duration of noise reduction per frame is 8 seconds. How long does it last for you?

I forgot to answer your question "How long does it last for you?"

Using my Apple MacBook Pro M3 max, denoising a Canon EOS R6 MkII (24MP) file is estimated to take 9 seconds whereas it actually takes 13 seconds. Using the same computer, a Canon EOS R5 (45MP) file is estimated to take 15 seconds whereas it actually takes 19 seconds.

Note that my figures are based on megapixels not megabytes, hence denoise appearing to take signicantly lomger than your example.

D

danielachner

Participant

Hello everyone,
is there already a solution to this issue? I have the same problem with Lightroom.

I am struggling with CPU temperatures of 95 to 100 degrees Celsius during export, applying noise reduction and some AI batch tasks.

What solutions have you tried? The problem only occurs since the newer version. Older versions never caused problems.

Can you please give me a solution?

I have attached my system information.

Systeminformation.txt

johnrellis

Legend

It is to be expected that CPUs and GPUs will run hot during LR batch tasks, since LR tries hard to fully utilize them to a degree that most apps don't. Your CPU/GPU may not actually be "overheating" -- when they truly overheat, Windows and the CPU firmware will slow the clock rate, at which point LR will slow down considerably. Your temperature utility should show you if/when the clock rate has been slowed.

If the CPU/GPU does overheat, that's always a hardware problem. You'll need to clean the fan and the vents thoroughly to remove any clogging dirt and dust, and if that doesn't help, take it to a technician.

"DirectX: NVIDIA GeForce RTX 3060 Laptop GPU (32.0.15.6641)"

That graphics driver is 6 months old. Update to the latest Studio driver here:

https://www.nvidia.com/en-us/drivers/details/247951/

G

Gérard26300594ntv5Author

Inspiring

Hello,

Obviously, it's been since this new version of Lightroom because I hadn't noticed this overheating before.

In my research, I also noticed the following: I have an HP Omen PC with an i7 12700 and a 92mm heatsink and fan.

A computer technician told me that for this processor, you need a 120mm heatsink and the same fan, and sometimes twice as much if you really want a gaming PC (I do, for photography).

So I think I now know the limitations of my (brand-name) HP Omen PC.

Danielhachner, are you in the same situation? (also a brand-name PC)

Ian Lyons

Community Expert

Please provide a copy of your Lightroom Classic 'System Info'. You can obtain this via the Help > System Info menu item. System Info will give us a much more detailed description of your hardware along with driver information, etc

Note that the System Info window includes a Copy button. Use this to copy the information, then paste into a forum post.

G

Gérard26300594ntv5Author

Inspiring

Hello Ian Lyons,

Thank you for your help, and here is the requested file.

Sincerely,

LrC_info_système.txt

Ian Lyons

Community Expert

There's a slighty (approximately 10 days) newer driver for your GPU that you might wish to install. That being said, it probably won't make much, if any, difference to the tempatures you're seeing.

As others have indicated Denoise will push the CPU and GPU hard, especially when batching files. If the ventilation ducts are clear and the fan is cooling harward, then all seems fine.

johnrellis

Legend

Denoise and export use the CPU and GPU intensively, especially the GPU. It's not unusual for CPU/GPU temperature to go very high during such operations. But if your cooling system is not working properly (e.g. because it's clogged with dust), then the CPU firmware can reduce the clock speed considerably until the temperature drops, and you'll observe LR proceed more slowly. So things to check:

- Vacuum out the interior, paying attention to the fan and the vents.

- Use a temperature utility that shows you the clock speed -- is it getting dropped when the temperature goes high?

G

Gérard26300594ntv5Author

Inspiring

Hello johnrellis,

First of all, thank you for your feedback.

Regarding the dust, I've already taken the necessary steps, and my problem has been occurring particularly since Lightroom Classic 14.2.

And indeed, the clock speed decreases as the temperature increases (checked with HWMonitor).

This temperature also increases significantly when I export a batch of photos from raw to JPG, particularly since the new version of LRC 14.2. Have you also noticed this phenomenon with this same version of LRC?

Thank you again for your help, and it would be very helpful if I could know how it works elsewhere (batch noise reduction and the same for exporting from raw to JPG).

A very nice day for you.

dj_paige

Legend

My CPU temperature easily rises to 95°C and then cools down again thanks to the fan. When I batch process 10, 20, or 40 photos, the same thing happens when exporting these photos to jpg files, and the process slows down considerably.

This happens because you have asked the computer to a large amount of work, which generates heat, and can cause the PC to "throttle" (slow down) so it doesn't overheat. This could be cause the cooling system isn't working properly. You need to make sure all vents are vaccuumed out and not blocked by dust. Make sure that the vents are not blocked by furniture or walls. If you can open the case, then also make sure there is no dust build-up there and that all fans (if any) are working. (I'm not really familiar with an HP Omen) Another thing you can try is a laptop cooling device (example)

G

Gérard26300594ntv5Author

Inspiring

Hello dj_paige,

Thanks for your feedback, but unfortunately the dust issue has already been investigated, and I vacuumed up what little there was.

My problem really stems from the PC overheating since the new version of Lightroom 14.2: do you also use noise reduction in batches of images (20, 30, 40) and did you notice any CPU overheating? (Or the PC fans were making more noise by spinning much faster: I should point out that this has been happening since I upgraded to Lightroom Classic 14.2).

If I could have your feedback on this point it would be really nice, have a good day.

dj_paige

Legend

So its not dust, but it is still overheating caused by intensive use of the CPU and/or GPU and a failure of some part of the cooling system (such as fans are not blowing, vents blocked by furniture or wall, and other possibilities). This is how computers work, and I would have told you this 20 years ago, long before LrC 14.2 existed. Also, there have been some problems reported regularly with 14.2, but overheating is not one of them, you are the first I can remember to report this, all other 14.2 users who perform noise reduction in batches (like me) do not have overheating problems.

You need to monitor the heat using a temperature utility as suggested by @johnrellis , and try to find other causes that makes the cooling system fail.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded