Question Why does the power limit drop after 2 hours on Asus 3080 TUF OC?

[clydeteq]

My Asus Tuf 3080 10G OC is exhibiting a weird phenomenon whereby after 2 hours the power limit drops from 200W to 140W on its own.

I checked the thermals for both core and VRAM and these were 90 degrees and 41 degree prior to the power limit dropping off.

This happens whether I watch videos in full screen or play games and consistently the power limit drops off after about 2 hours.

I switched out PSU and also tried various different drivers. I have used HW Info to collect logs and on every ocassion despite whatever I am doing, the power limit tails off after 2 hours.

Running on Windows 11 Pro, 32GB RAM Ryzen 5600x.

What could be contributing other than a bad GPU?

 

[DAPUNISHER]

What could be contributing other than a bad GPU?

With a new OS in the mix, and no experience with particular problem, I got nothing. I would contact Asus tech support and open a ticket. I cringe a little suggesting to actually contact Asus support.

If you nail it down, please post back, so I can add it to my brainpan.

The only thing I can suggest, is to throw win 10 on a spare drive, if you have one, and see if the issue recurs.

 

[Stuka87]

I bet Windows 11 is doing something where it thinks there is no activity (because of full screen) so it starts to put things into energy saver mode or something.

Does the CPU also drop by chance?

But as Punisher says, throw Windows 10 onto a drive and test it. I would almost bet money it works fine.

 

[VirtualLarry]

Cold this have something to do with "XBox Game Bar" and the screen recording in the background? Did you accidentally hit a hotkey to enable this feature, perhaps. I'm thinking that it records for two hours and then stops. Can you get a graph of disk activity, both during the high power of the GPU, as well as the lower number?

 

[yacoub]

After it drops, what does it take to bring it back up to full power? Closing and re-opening the application in focus? Logging out and back into Windows? Restarting/rebooting the computer?