@HeyThisIsntTheYMCA@lemmy.world
Post #3484763
2026-06-22 22:39 UTC
hey, so i suck at picking parts and never know if they’ll fit my build. like, my first job was as a hardware guy back in the 90s and haven’t really kept up. is there a compatibility checker somewhere?
i just don’t want to buy 12 PSUs with the intention of sending 11 back. I know I’m buying from A cOrPoRaTiOn but it still seems dishonest to me
Replies (1)
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@tomkatt@lemmy.world 2026-06-23 03:38
Use a PSU calculator for the parts you’re selecting. Power supplies are rated to always provide consistent load of at least 80% of rated spec, so aim for a PSU with at least 20% overhead. So if the system uses 600w peak, you’ll want a 720w PSU or better. In general, an 800w PSU is generally more than enough for most systems, unless you’re buying really power hungry parts (think Nvidia 5080 or 5090 and the highest end Intel chips or AMD threadrippers). If in doubt, just buy a bigger PSU than you need, like 1000w. Always better to have more than you need, it only uses what the system requires, it’s not like it’s always actually going to draw that 1kw power.