Hey everyone! I'm looking to upgrade my system and I need some advice regarding my power supply unit (PSU). Currently, I have an EVGA 750W G2 PSU from 2018. I'm running an AMD 3900X, RTX 2080 Super, TUF-X-570E motherboard, and 4 x 8GB Corsair Vengeance 3200MHz RAM, along with storage that includes two Samsung NVME M.2 SSDs and a 2TB Samsung SSD. For my new setup, I'm switching to an AMD 9800X3D with an RTX 5080, a Gigabyte X870 WiFi 7 motherboard, and 2 x 16GB Patriot Viper Venom RAM, while keeping the same storage. I'm wondering if my older PSU will provide enough power for the new GPU and if I will need any new cables or adapters for it. Also, I've got a Noctua DH-15 cooler with the AM4 mounting bracket; will it work on the new AM5 socket, or do I need to get an adapter? Any insights would be greatly appreciated!
3 Answers
You should be good with your current PSU for the upgrade! Just a heads-up, Nvidia recommends at least 850W for optimal performance with the RTX 5080. It might be running close to the limit, but you should still be fine. As for the cooler, the AM4 and AM5 brackets are indeed compatible. Good luck with your build!
It sounds like you’re on the right track! The EVGA 750W should manage the power needs, but if you want to future-proof or push the limits, an 850W would give you more peace of mind. And for the GPU connections, you may need some new cables depending on what the RTX 5080 requires.
Yeah, your PSU is likely enough, but just ensure all the wattage is calculated correctly. The max TDP of the RTX 5080 is about 350W, and the 9800X is around 120W, so you should have enough headroom even under load. Just double-check your cable connections for the new GPU to avoid any surprises when everything is assembled.
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