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by friend_Fernando 523 days ago
An even better fix for this category of problems is DC distribution at the homelab scale. I've replaced most of my 5V and 12V wall warts with a PC PSU. A number of transient issues that used to affect some of the gear disappeared.
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At Chaos Communication Camp (2023) I brought a hard drive to attach to a Raspberry Pi with a USB adapter, and a little solar power system because I could.

I realized the inverter was using about 5 watts idle and that was about half of my average power budget for the camp (counting night time), so I cut the adapter's cable and re-wired it directly to the battery. Worked fine. Most components in a computer that nominally run at 12V are passing it through some sort of adaptive converter (either a buck converter or directly to a speed-controlled motor) so they have a fairly wide voltage tolerance. I obviously didn't find out if it reduced the lifespan at all.