How to understand what power supply does my pc need? (feddit.it)

submitted 1 year ago by UprisingVoltage@feddit.it to c/buildapc@lemmy.world

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Hi all, I need to replace a power supply in an old pc. I think it's 650-700w, but could it be too much for a GTX960+AMD FX8320?

Is there a tool to help me evaluate the proper power range needed?

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[-] HoodsOwn@lemmy.world 14 points 1 year ago

Pcpartpicker will help you with this issue.

[-] UprisingVoltage@feddit.it 2 points 1 year ago

Thank you

[-] SpaceNoodle@lemmy.world 1 points 1 year ago* (last edited 1 year ago)

+1 for PCPartPicker. I use this for every new build and upgrade, no exceptions. I've used it for over a decade and it hasn't failed me once.

[-] DaCrazyJamez@sh.itjust.works 9 points 1 year ago

Theres really no risk with going too big on a power supply, as the rating is the max draw, not the constant output. A 1200w power supply will only provide 650w, if thats all thats being called for.

[-] pixelscience@lemm.ee 10 points 1 year ago

Power supplies are also more efficient when not near their max load, so a 1200w only doing 650 is going to be better off than a 700 doing 650.

[-] UprisingVoltage@feddit.it 3 points 1 year ago

Cool, I didn't know that

this post was submitted on 30 Aug 2023

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