General > General Technical Chat
Why aren't computers designed to handle power failure?
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firehopper:

--- Quote from: bd139 on June 12, 2020, 04:16:36 pm ---That's a bummer. There's enough fragmentation so I agree. I built my first desktop for about 10 years recently and was annoyed to find out that I still had to frig around with LED and power switch wiring like I did in the mid 1990s. Perhaps they can consolidate all that first.

--- End quote ---

yes I just upgraded a computer with a x570 MB and had to faf about with the front panel connectors, granted it was a lot simpler this time, as the connectors had the polarity marked on them and it was only 5 of them, so fairly easy and painless :) it just worked. but thats part of the case design.
bd139:
Yeah mine worked first time as well which surprised me.

I did see a picture the other day where the cable had two reset button connectors on it and no LED though  :-DD
madires:
Anything wrong with that? It's the fun part of building your own PC. ^-^
SiliconWizard:

--- Quote from: pepelevamp on June 12, 2020, 03:22:38 pm ---
--- Quote from: bd139 on June 12, 2020, 03:02:59 pm ---BTW you can use "picopsu" boards to do this and then use a standard BMC board as the supply for it.
https://www.mini-itx.com/store/?c=10

Don't expect to hang a Ryzen 9 off it  :-DD

--- End quote ---
thanks a bunch now i have lost the rest of my life to this rabbit hole. what a fantastic idea. I have long wished that all the devices in my house simply ran off DC. you could have a stack of 18650s in there with a BMS and have your own sweet sensual UPS for a fraction of the cost of those horrible big nasty UPSes that just include those disgusting alternators with their jaggedy excuses for sine waves.

--- End quote ---

A number of mini-ITX motherboards can already run off DC without any additional module. Of course don't expect high performance from this, but I've built a Linux box that is on my LAN and that I use for Linux dev tasks, based on a thin mini ITX MB (ASUS) with a Core i7 4790T and 16GB RAM. Not ridiculous. Runs off a DC adapter and is fully passively cooled (the case is made for this - it gets a bit hot under load, but never failed.)


bd139:
There are a few "canned" desktops which can do that as well. Lenovo M600's run off a 19V DC thinkpad charger

I'm using one as a media centre at the moment. Fanless Celeron that runs LibreElec + Kodi. Nice little machines. Also make handy Linux utility boxes as they run headless.
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