Selfhosted

I love this community, I used to rant about efficiency all the the time on reddits self hosting community and everyone thought I was insane. If the damn thing is going to run 24/7 for 5+ years then put a little thought into its power usage!

I personally love old Dell optiplex micros on eBay. Cheap, plentiful laptop hardware in a cute little box which allows modest upgrades. My primary server in a full sized case is just a laptop CPU, Ryzen 5600g. It brings me joy that my network has four servers and still is under 75w idle for everything including networking gear.

I've had great luck using Intel NUCs as home servers and HTPC boxes. Since those are now gone, I have found that Beelink is the most cost effective replacement when I needed to revamp the setup. My biggest complaint on them is that the cooling fans on them are not super reliable and it is not easy to find compatible replacements. I had to order them direct from China and there are a few wiring incompatible variants. I ended up with one of them being the wrong type and I had to resolder the leads to match the existing broken fan.

It really depends on what you're doing with it and on what old PCs you have available.

I have an N100 Mini-PC at home in my living room connected to my TV which is both a home server and a TV-Box using Kodi (I even have a remote for it).

Having modern image and video decoding in hardware is pretty useful when I'm using it as a TV Box (there is zero stutter with it), whilst the rest of the time the thing mostly sits doing some low CPU-intensive server tasks (mainly torrenting and SMB server stuff).

Also, it's a small box that fits fine on my TV stand without standing out and runs silent pretty almost all of the time.

Further, I don't have any low power consuming old PCs around - the best are some chunky old notebooks, the rest are old gaming PCs which eat more power idle than the mini PC does at full load - and even the notebooks aren't that low power as all that.

Mind you, for many years I used an old Asus EEE PC (a very small notebook running Linux) as home file server (with external HDs) and had a separated dedicated hardware TV Media Server box playing files from it, but eventually that PC stopped working and I found out I could just use my Router as a file server.

Last but not least, judging for how long I kept using my TV Media Server boxes (which over almost 2 decades I had 2 different ones and which as dedicated hardware could not easilly be upgraded when new video compression standards came out) 10+ years is definitelly my time-frame for using that Mini-PC.

All this to say that you should consider using old hardware, especially if you have some around and it's task appropriate (like I did before using an old Asus EEE PC as a home file server), but also take in account what you're going to do it and consider if new hardware won't be better over the timespan you will likely be using it and if the being able to get a more task appropriate form factor (like how having a little box-size Mini PC lets me have it in my living room on a TV stand next to my TV and my fiber router) is worth it.

In summary, before you get hardware you should ponder a bit about what you intend to do with it before you decide what to get, don't be afraid of using stuff you already have and also don't be afraid to get new stuff if it's actually justified by hardnosed reasons rather than merely some variant of the "new stuff smell" psychological effect when buying new.

This should be a well know, but often misunderstood thing. Lots of reddit selfhosting threds urge people to buy a new mini-pc for its "low power draw" when usually its the same or 1-2watts less then a laptop from 2012. However performace to watt is much higher, so if you need massive preformance new is much better, if your system is idling most of the time anyway, basically no diffrence in buying old

Yeah, this is why I reuse my old PC parts. Here's my rough history:

1. Built PC w/ old AM3 board for personal use
2. Upgraded to AM4, used AM3 build for NAS (just bought drives)
3. Upgraded CPU and mobo (wanted mini-ITX), and upgraded NAS to AM5 (did need some RAM)

My NAS power draw was cut in half from 2-3, and it'll probably be cut again when I upgrade my PC again.

Old PC parts FTW!

I use a 2011 ThinkPad X120e as an FTP/Syncthing server. It was underpowered as a laptop from day one, but still works fine as a lightweight server. The best thing about ThinkPads is that TLP allows you to set min/max charging thresholds, so that you can keep an old battery in good shape for ... well, I'll let you know. This one's 14 years old and still has a four-hour run time.

One thing I'd like to try is "Wake My Potato" for shutdown / automatic restart when a power outage occurs.

Links:

TLP - https://linrunner.de/tlp/index.html

Wake My Potato - https://github.com/pablogila/WakeMyPotato

I am currently building a home server, this project timeline has been extended as I had no idea hard drives would be THAT expensive at the capacities I want....

I do have an old computer that is not in use, but I don't want to run a Bulldozer plattform...

So I am basing my new server on the AMD Ryzen 4600G, should be fine

I have an i7-2600 prebuilt for my NAS— is idle most of the time, bought it for $100 4 years ago. Have pretty cheap power at like $0.12 per KWh, but again mostly idle so probably doesn’t cost much anyway.

I have a 4-node heater here, but only 2 nodes are in use currently. I got it because it was exceedingly cheap (£75 here in UK and all 4 nodes have 3xE5-2620s and 48 gig ram) but in reality it overkill. Tempted to make a solar powered rpi 5 + m.2 server with battery backup just because I can, but it will be for serving websites both static and wordpress

I'm wanting something mini at home, I've been looking at the gmktec g9 for its nvme slots