GPU overclock suddently unstable after many years?

[ThatGuyJD]

I was monitoring with HWINFO, and peak power draw reached 306watts. This is a 8+6 pin GPU.
Theoretical limit therefore is 300watts.
So this may be why it's crashing?

Theoretical limit is somewhere north of 500w. Those connectors will handle significantly more than their rated amounts. Even the PCIe slot although that's the one you most want to stay within the limit.

 

[AceSwiftShooter]

re-pasted the card, and it passed a time-spy run at 120% power without error. Usually the benchmark would error out after 20 seconds.
More testing to continue in the next few days.

 

[Xtreme]

If gpu plays fine with stock settings, thats means gpu degraded and doesn't like certain voltage/mhz to push further. Your best bet is to let it stay stock to work

 

[Inspire Tech]

Hi Ace, Crashing on Power limit increase can be a few things, firstly Bad Power Supply, are you using a Single Pcie Power strand or are you using 2 cables per connector on Graphics card, using 2 connectors per strand can cause Voltage drop with will cause Crashing, increasing the Power limit after already have an applied Overclock on Core is not Recommended, if your gpu can run 100+ MHZ on 1.0 Volt but on 1.050 V it will only be capable of 75 MHZ overclock, this can cause a crash so i would rather try to increase power limit only at the begining of your Overclock, Remember 300W is stable Wattage but peak wattage is Much more some cards can spike to 450W for a Few Miliseconds witch can cause a voltage drop because of a Cheap Power supply even if it is a 1000W, Quality of power Supply is Important for High Overclocks.

Hope it Helps

 

[AceSwiftShooter]

Thanks, the above-mentioned repast did the trick.