this post was submitted on 30 Aug 2023
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How to understand what power supply does my pc need? (feddit.it)
submitted 1 year ago by [email protected] to c/[email protected]
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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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[–] [email protected] 9 points 1 year ago (1 children)

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.

[–] [email protected] 10 points 1 year ago (1 children)

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.

[–] [email protected] 4 points 1 year ago

Cool, I didn't know that