Hi friends. I’m a newbie in self-hosting, though I’ve been managing (virtual) linux servers at work for a couple of years. I’m completely ignorant on the hardware choices out there, hopefully you can point me to the right direction.
Here are my requisites:
- Low power consumption, I plan to have it connected 24/7 and I’m kinda concerned on how much it will impact the electricity bill
- Ethernet port, preferably gigabit but whatever
- Graphical performance is not important as I don’t plan to connect it to any display. As long as I can ssh into it, I’m good.
Services I plan on installing, for starters:
- casaOS
- pi-hole, or equivalent
- Home Assistant
- Kitchen Owl (nice to have)
- Paperless-ngx (nice to have)
I live in europe and my budget is around 80 euros or so. Thanks in advance!
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Risking sounding like a broken record, I always suggest Tiny/Mini/Micro 1L form factor office PCs. Lenovo, Dell, and HP all create ultra small office PCs that make great low power servers. A Pi will use 5-9w at idle, while these PCs will use 11-13w idle. They also use more standard components such as NVME drives, 2.5" drives, and replaceable RAM. Easy to find under $100 USD used, I’m sure you can find them under 100 euro.
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Good point.
The Pi Zero is 2w max… It’s downside is it draws 2w MAX. Power is power, only so much you can do in 2w. As you pointed out, the 4 and 5 can do more, because they can draw more, (or they draw more so can do more, it’s all related).
The key seems to be ability to minimize the idle power while still capable of ramping up to something useful when you need it - like the micros you’ve listed.
We buy the HP Pro/Elitedesk 1L pcs as backup servers and attach storage.
Works pretty good and they are pretty cheap with the power they can provide.
Try a used laptop. Cheap, power efficient, built in UPS, small. Can be quite powerful and some are even upgradable
Dammit, I have a few of those, you’re killing my excuse to buy a new toy!
Even has a KVM for emergency access ;)
As a point of reference regarding power consumption:
I’ve been running a desktop non-stop for the last ten years (built as a gaming rig) as a file/media server, so it’s probably the worst thing you can run this way, power-wise. Has an 800 watt power supply, running windows.
I’ve done the math many times, costs me about $1/day in power at mostly idle.
Just presenting a worst-case example as a guideline.
I’ve recently spun up a Raspberry Pi Zero W for PiHole, DHCP, DNS, Tailscale, Joplin and Bitwarden. It’s maximum power draw is TWO WATTS. Haha
Currently running a watt meter on the desktop, should have some decent actual numbers from it soon, but can’t imagine idle is any less than 50 watts.
So there’s two extremes. Don’t be me (looks like you aren’t!)
Edit: I wouldn’t recommend the Zero W for this, it’s underpowered. I’m already overloading it with just PiHole and Tailscale, honestly.
Throwing in my own data, I have a small server rack at home that runs a brocade icx4630 switch and dell r720, idles around 250w. My desktop setup, monitors, amp, computer itself etc idles around 200w.
Oof. Maybe my power is worse than I thought!
Adding my data as well:
My server is diy desktop pc - mbo MSI Z270-A PRO with celeron G3930 and 16GB RAM, 3x SSD on 550W PSU, idles at 23W. After adding another 3.5" HDD consuption went up to 34W. 34W in Ctoatia is around 34€ a year.
Some SFF PCs are at 10-15W. SBCs like rpi should be below 10 W, but dont think you can get anything new for 80€
Pi Zero could be underpowered but the bigger pi’s sound like a perfect match. I would recommend looking into a used pi 3 or 4, because the pi 5 is new and always out of stock (at least in europe) so you pay around 150$.
Look into a NUC on ebay. I was able to snag a new 11th Gen i3 for 200 eur. Power draw is about 7w with a headless Debian. Running a media server, nextcloud, pihole, an arr stack and I’m planning to add home assistant and a zigbee bridge which I now run on a pi.
If you aren’t planning to run to much on it a rpi4or5 will actually be enough and these things can draw 15 on absolute max load.
Wow, 7w. And has real horsepower unlike RPi.
Im really impressed with the thing. Cpu idles at 30C as well. Very similar to rpi4 with 5 times the performance.
A raspberry pi or orange pi could definitely run all of those things at very low power consumption.
Any Intel NUC(the small 4x4 ones) 8th gen or forward will fit the bill.
My whole “homelab” is made of either things I literally found in the trash, hand-me downs and 2nd part stuff I got for extremely cheap. It’s no speed deamon, but it’s got 8cores, 16GB ram and gigabit… What I’m trying to say is, that is most likely also an option for you and there is no reason to buy the latest and greatest of hardware for running simple things like pi-hole. As for the electricity bill, unless you’re running something computationally intensive 24/7 or just a ton of hard drives, I wouldn’t worry about it.
HP EliteDesk 800 G3 Mini (or equivalent)? You can get them for pretty cheap on eBay.
A refurbished elite desk sff PC works great.
Just got one for $100 on r/hardwareswap (yes I still visit reddit, but I can’t give up hardwareswap) a couple weeks ago
You can get them on eBay and Amazon for that much.
Not to state the obvious one, but there’s always the Raspberry Pi.
The supply has gotten better on those, so you can probably pick one up in your price range, and the power draw is super minimal.
In my country pi4 8GB ram with PSU 130€ and then you need SD card and/or SSD
Raspberry Pi was my first choice, but apparently I can’t even back order it :/
If it’s been a while since you checked, it’s worth checking again. RPi has been becoming more available over the last month or two, and I was able to get one of the new RPi 5!
Someone put together a great locator tool
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I just bought a cheap Intel i3 10100T that have a TDP of 35W.
There is a bios option to reduce that to 25W.
Thoses are not sold to end users and must be purchased through craiglist or equivalent.TDP is not related to power consumption, it’s related to dissipation.
The thermal dissipation is directly linked to the amount of power consumed.
It’s not and it’s insane. TDP is a fucky “metric”.
+1 for CasaOS! The simplest and best I’ve tried.
Lots of good suggestions here already but nobodys mentioned the Asrock A300 DeskMini. Low power consumption and you could probably find one for pretty cheap.
Obviously an old laptop you don’t use anymore is a great and affordable choice too. Comes with a built-in battery backup!
