Very poor performance on high end pc after Premiere Pro 25.2

Hi @Fontenelle Moraes I know it's even more frustrating editing with Premiere Pro these days. I'm also experiencing more crashes, like when we open a project and start editing, it freezes for a while and then comes back, or sometimes it just gives a black screen that can only be fixed with a restart of Premiere Pro. Really frustrating. From your post, I can suggest the Autokroma Influx importer rather than the default Adobe importer to solve your problem. Since Influx uses the FFmpeg library for decoding tasks, I've tested it on my PC, and it's working fine.

I'm using Pro Ress @MyerPj in quarter

What format are your proxies. I would recommend 'ProRes Proxy' format at 720p, they look good and are easy on the computer.

I personally thing h.264 proxies are not better then just using the originals.

New project, created today, using proxys to edit it, very very low performance, constant stuttering and in the render time the famous render error, but this time with a different report.

Premiere is very inconstant. I was able to render 3 videos using the lumetri, for this video, premiere won't render in any way. In MP4, int Quicktime. I'm getting trired of this.

Hi guys, I conducted some tests in my PC. I didn't test every thing yet, but GPU is 100% fine, tested with FurMark2 and Unigine and both programs said that de GPU health is ok. I did another memory RAM test with MemTest86 and it's 100% too. I still need to test my storages, such as my HD and SSDs and the CPU, I'll let you know the results of the tests

@RjL190365 thanks for all information! Sure i'm going to check about the PSU. And for me it's kinda surprising because it was not a cheap PSU, when i built this PC, one of my priorities was a good and high quality PSU, and the information I have about this PSU is that it is a great PSU. Just in comparison, the CPU was R$ 3200,00, and the PSU was R$ 1200,00 it was like a third of the CPU price, so it was not cheap. Do you recommend any PSU brand? Another point that I want to ask you is about why my premiere was running very good before the new version. My problems started after the update. Another question, could it be my GPU falling, and the PSU ok, or it's not possible that the GPU would be bad only with this PSU. Is there any test i can do to check about de PSU/GPU integrity?

Another point

There is a large channel on You Tube in Brazil called Teclab, and they are well-known in Brazil for conducting tests on computer components, they are a lab focused on hardware. They are always honest in their tests, and they always conduct everything to the limit precisely to test the quality and veracity of the PSU and they approved this PSU. I do not doubt their information, in any way, but at the same time I know that this channel is reliable and does not turn a blind eye for brands, and this credibility was gained because of this.

The excessive number of crashes indicate that your GPU may be failing. That degradation of your GPU may have been caused by continued use of a low-quality power supply unit (PSU), whose DC quality is so shoddy that it ends up being a PC component killer. And I would not trust, nor even purchase, a GameMax or GamePower branded PSU at all due to that brand being a scam. The strikes against GamePower/GameMax PSUs include review sample manipulation, paid positive reviews and downgrades in component quality during a given model's production run with absolutely no indication whatsoever. In other words, that so-called "1050W" PSU of yours might very well have been only a 450W unit - and then, your i7-14700K will draw more than 253W by itself off of that PSU! Coupled with the 290W power draw from your RTX 3070 Ti, and you might have very well exceeded the maximum realistic power capacity of that PSU!

That is a very common problem with building a higher-end PC such as yours. Go whole hog on the components but cheap out on the PSU. That's just plain foolish, IMHO.

Therefore, I would replace that PSU right away before you purchase a new GPU or continue using your PC. If you don't, more of your PC's components will die an ungraceful death.

How many crashes I had today? You guys can see it? 

Oh gosh rn I can't render in quicktime too! I need to render this video like now

Even with ME it's not working

And following on from @Alexander_DVA's comment, you could probably remove the Nvidia card from the machine and boot using the built in Intel (iGpu).