Problems with 3080 OC (random reboot)

[keithg89]

After what seems like ages I've finally managed to get my hands on a ROG STRIX 3080 OC (got it as a bundle). After fitting it in my case and being amazed by the performance over my previous RX 580 I decided to put up Forza Horizon 5 and cranked everything up to max. This worked and looked great running at 60+ fps but I am randomly getting some restarts after playing for a while. Card is supplied by 3 direct cables to my Corsair RMX 750 PSU. Since the recommended PSU is 850w (and considering that the RX 580 worked fine) this is my primary suspect. Is there a way to limit the max power draw (at the cost of performance) or would you just get a new 850W+ PSU?

Specs as follows:
AMD Ryzen 5600x
ROG Strix B550-A Gaming
ROG Strix 3080 OC (v2)
Corsair Vengeance 32GB RAM
Samsung EVO 970 1 TB SSD
Corsair RMX 750
Windows 10

Thanks for your help.

[Alex Atkin UK]

You can certainly try installing MSI Afterburner and turning down the power target, but obviously replacing the PSU makes more sense in the long term.