Using L to speed up timeline causes my PC fan to get loud?

[DrewRothman]

I'm working my way through a simple multicam project... just two clips, one 4k and one 1080p, playing back at 1/2 preview quality. When I use "L" to push the speed, it makes the fan on my PC go crazy like it's preparing for takeoff. This is a brand new machine with an 3060Ti, i7-12700, and 32G of RAM... surely playing back video at increased speed shouldn't be driving it so hard? Or is this normal?

[R Neil Haugen]

If it's having to generate more frames faster, yea, it can certainly get pushing the system. Note that the UHD or the 1080 clips are all being resized, right? Depending on whether you downsize the UHD or upsize the 1080.

Irrespective of potential codec issues. Such as say H.264/5 long-GOP or maybe RAW media.

Neil

[Warren Heaton]

System cooling should kick-in whenever the CPU temperature goes up.

Are you running a utility to monitor more than just the CPU?  So, CPU temperature, core foltage, operating frequency, etc.?

It does seem a little odd that playing video at a higher than regular playback speed would cause this.  Is it consistent?  That is, you're playing the video at normal speed, you press L for 2x speed and then fans and when you press K to step back down to normal speed the fans stop?

It's not uncommon to keep loud hardware (usually system towers and storage arrays) away from the keyboard, monitor and mouse to avoid distraction while editing.  It could be under the table or even in a sound proof, half-rack enclosure.

The fans on my HP OMEN 15-inch laptop are really loud.  That noise and the how hot the unit gets during a few hours of editing make it tough to work on sometimes.  At least for video editing, I prefer to work on my 16-inch MacBook Pro that's whisper quiet all the time.

[DrewRothman]

Thanks for the responses, all. no, I'm not running anything to monitor. It just whipped up the fans really hard when I first got the speed going, and then turned them down again when I went back to normal speed.

This is the first project I've done on this computer, so I just wasn't sure what to expect. That said, when I started encoding the final video, it also cranked the fans up really hard and then slowed them back down again. Perhaps it's just a thing this machine is going to do when heavy process begins. It's settled down pretty quickly though.

on the plus side, it says it's only going to take about 35 minutes to render a two hour long MP4, which is outstanding. 🙂

[R Neil Haugen]

My Acer laptop will at times send the fans into hyperdrive. And as  noted, they come back down, then soar, then calm, then ...

Neil