Interactive rendering slows down.

[skogskalle]

Perhaps you could add 3dsmax.exe as an exception to your antivirus?
It's really interesting to hear about disabling core parking bringing some improvement. It would be great if other users could try it and share their outcomes.

Already added 3dsmax.exe as an exception but didnt seem to make much difference.  Will make some more tests when I have the time.

[fatherrain]

I found a similar article when I first experienced the problem. Turning the core park option on or off didn't make a difference for me. Using the motherboard bios settings in the default settings solves the problem for now. I'm waiting for the new Windows update. Maybe something will be fixed. Also pay attention to the processor fan. Heating problems make the system unstable. Liquid cooling is disappointing. Tower fans offer more effective solutions. I'm not very expert in this subject, but this is how I experienced it. By the way, I'd appreciate it if you could write your experiences with expo off in the Bios settings.

[Quest]

I found a similar article when I first experienced the problem. Turning the core park option on or off didn't make a difference for me. Using the motherboard bios settings in the default settings solves the problem for now. I'm waiting for the new Windows update. Maybe something will be fixed. Also pay attention to the processor fan. Heating problems make the system unstable. Liquid cooling is disappointing. Tower fans offer more effective solutions. I'm not very expert in this subject, but this is how I experienced it. By the way, I'd appreciate it if you could write your experiences with expo off in the Bios settings.

- I can't agree with you about cooling, and the problem is not because of it or overheating up to 95C (Add few screens from few pc with 9950x with AIO)

- Regarding the search for certain ways to solve problems, today everything comes down to two methods: one works for many, the second does not work for everyone.
1. Rollback to 23h2 2. Turn off expo (And problem not directly in OC memory or OC CPU)

- There small chance that upcoming bios update can solve problem

- Wait for windows update can take long, they acctualy fix that problem befor and seems after 10.0.26100.1742 broke something again.

- There no point wait from Corona team that they make miracle, becouse main source of problem its a Windows and bios

p.s There will be latest test when new stable bios released one with 24H2 + expo on + cpu oc and if that wont work 23H2 + expo on + cpu oc

[fatherrain]

As I said, I am not an expert on the subject. You may be right about the cooling. I don't know if the new BIOS will solve all the problems. I am currently using Bios 1103 beta. There are some improvements in this version. In previous versions, I used to experience pauses even in a basic scene (only the teapot), but now I don't. I experience them in large max projects or when several applications are open at the same time. But of course it is not enough. My old computer has a 7950x3d processor. The same problems are there. It is not a problem that only applies to the 9950x. I have another question in my mind. I can't answer. Not everyone has this problem. Is there hardware or applications that should not come together that make us special? I don't know if this perspective is correct.

[kacarsoys]

Hello, I am using x9950 and when I start rendering, the pc freezes, I can't solve it no matter what I do.

Have you tried following this checklist?

- update your chipset driver
- update your BIOS
- disable core parking - https://learn.microsoft.com/en-us/answers/questions/1524213/remove-parked-status-of-cpu
- disable core isolation and virtual machine platform - https://www.makeuseof.com/windows-disable-two-virtualizations-game-performance-boose/
- go to BIOS and set CPU SoC voltage from the default 1.25V to 1.2V and Infinity Fabric (FCLK) to 2000 MHz
- change your power plan in Windows (try all available options, power saving, high performance, etc)

I did everything we wrote but the result did not change :(

[ParaEagle]

After updating to Windows 11 24H2, I encountered a serious issue with Corona Renderer. During rendering, my computer would completely freeze, making it impossible to use.
However, I found a solution! I installed the Windows 11 update from the Beta Channel (KB5052086), and it completely resolved the freezing problem.
If anyone else is facing similar issues, I highly recommend giving this update a try. Hope this helps!

[Sedrax]

Thank you very much. It really works. Yesterday I assembled a PC based on the 9950x processor. And I've been suffering for 2 days. At the beginning of interactive rendering - work was simply impossible!! Everything hung. Tried almost everything that was written above, nothing helped. But after installing the beta version of the Windows update - a miracle happened!!!! Everything is up and running great with the XMP profile enabled! Friends, try it, who had such problems..

[lupaz]

After updating to Windows 11 24H2, I encountered a serious issue with Corona Renderer. During rendering, my computer would completely freeze, making it impossible to use.
However, I found a solution! I installed the Windows 11 update from the Beta Channel (KB5052086), and it completely resolved the freezing problem.
If anyone else is facing similar issues, I highly recommend giving this update a try. Hope this helps!

Could you post a link for everyone else please?

[ParaEagle]

Could you post a link for everyone else please?

I didn't download it from an external source. I simply went to the Windows 11 Settings > Windows Update > Windows Insider Program, switched to the Beta Channel, and updated to the latest patch from there.

[Sedrax]

I did the same. But you have to hurry, because as far as I know, Microsoft wants to ban the transition to the Beta version at the end of the month.

[bcarnevalli]

I can confirm that the beta update from windows 11 works.
I can´t understand that in 2025 we still have this kind of behaviours on apps.

[Quest]

Hello, new update to 26100.3321  (KB5052093) seems to solve problem (it's not beta/dev channel)

[Renovacio]

Disabling EXPO helped me.

It didn't help:
- update your chipset driver
- update your BIOS
- disable core parking - https://learn.microsoft.com/en-us/answers/questions/1524213/remove-parked-status-of-cpu
- disable core isolation and virtual machine platform - https://www.makeuseof.com/windows-disable-two-virtualizations-game-performance-boose/
- go to BIOS and set CPU SoC voltage from the default 1.25V to 1.2V and Infinity Fabric (FCLK) to 2000 MHz
- change your power plan in Windows (try all available options, power saving, high performance, etc)

Installing the latest Windows 11 (KB5052093) update did not help.

[ParaEagle]

Installing the latest Windows 11 (KB5052093) update did not help.

  Hi,  I saw that installing the latest Windows 11 update (KB5052093) did not help.  Could you also try the Beta Channel update (KB5052086) that was mentioned earlier in this thread? It would be helpful to know if this update works for you or not. 

[davevc]

Hi all. Just got a new build PC with the 9950x, using Max 25 and Corona 12.1 HF1, Windows 11Pro and having issues very similar to what has been described in this post. Max freezes really bad when rendering and also intermittment freezes when using interactive rendering
Did anyone get to the bottom of this please?
thanks