Oh man, i feel u on the closet heat paranoia!! I've been running my Plex server 24/7 for like 5 years now. Here's what i recommend based on my own setup:

- Honestly, go for a Seasonic or Corsair Gold unit. They're basically bulletproof for home labs.
- Efficiency is EVERYTHING at idle loads... i mean, it literally keeps that closet from turning into an oven.
- I've used a Corsair RM series for ages and it's been AMAZING. Zero hiccups!!

Basically, just dont cheap out on the tier and youll be fine. GL! 👍

Ok so basically, if you're running 24/7 in a closet, look for something with a 10-year warranty like the Seasonic Focus GX-550 550W 80+ Gold or the EVGA SuperNova 550 G6 550W 80+ Gold for that solid build quality and reliability. tbh gold efficiency is plenty for your needs!

Honestly, since you're putting this in a closet, i'd reallyyy focus on safety features like OVP and OTP above all else. I mean, closet heat is no joke for 24/7 gear! I've been super happy with the higher-end FSP units—they actually make the internals for a lot of big brands. Basically, just make sure whatever you get has a long warranty, like 7-10 years, cuz that's a huge sign the manufacturer trusts the components for always-on use. gl!

Honestly, people overhype Gold/Platinum for low-load servers. I've had issues with expensive units dying cuz they aren't optimized for 20W idles. If you want real longevity on a budget, look at the Be Quiet! Pure Power 12 M 550W 80 Plus Gold. It's ATX 3.0, so the components are built for modern spikes. Also, the Cooler Master V650 SFX Gold 650W is surprisingly solid if you're tight on space in that closet. Seriously, focus on 10yr warranties over just the efficiency rating. gl!

^ This. Also, reliability is key, but you might want to consider that compatibility between newer ATX 3.0 specs and certain older server boards can be finicky if you arent careful. Its probably best to verify the transient response data before putting any hardware in a cramped closet... dont want to fry anything.

• Search for the PSU Tier List on the Cultists Network site.
• Check Reddit or the hardware forums for specific 24/7 uptime logs.
• Look for technical teardowns on YouTube that focus on component heat tolerance. Honestly, just check the manufacturer websites or look for that one deep-dive video on YouTube about server power efficiency. I saw a great one a few weeks back that breaks down the exact failure rates for 24/7 setups. Just search for home server psu reliability and it should be the first result. Its got all the data youre looking for tho.

Solid advice 👍

This ^

I've spent way too much time obsessing over the efficiency curves on my own lab units, especially since most home servers spend 90 percent of their life idling at like 15 to 30 watts. Honestly, looking at 80 Plus ratings is okay, but I started diving into the Cybenetics database to check the actual 5Vsb efficiency and low-load performance because that's where the heat really builds up in a small space. I mean, I've seen some high-end units that look great on paper but have terrible ripple suppression when they're barely being pushed, which can mess with your drive longevity over several years. But before you pull the trigger, I have a couple questions about the technical side of the build:

• What is the total estimated idle power draw you're expecting from the wall?
• Are you planning to pair this with a pure sine wave UPS, or just a standard consumer backup? Knowing those specs makes a huge difference in how the PSU's internal components handle the power delivery and heat dissipation over the long haul, right?

+1