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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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At current power costs in Germany (~0.3€/kWh) that 10W becomes 26€ per year. If you are still on a contract from a few months ago (~0.4€/kWh), you'll be paying ~35€ per year. Over a span of around 3 to 5 years of continued use, the cheap Aliexpress knockoffs definitely become reasonable at that price point. You'd still need a proper 230V to 12V PSU though, which costs <20€. I first tried one of the industrial ones with metal cage, but they have horrible efficiency especially at low loads. I would always suggest getting a consumer PSU with ErP rating and other certifications. Adding all the cost up, a good regular ATX PSU with 80PLUS certification might be competitive to such a combo too.
I am not too sure this problem is entirely about the PSU though. Maybe the mainboard is simply designed very cheaply and inefficiently. There's no way of testing a new PSU combo without trying it though.