General > General Technical Chat
Why aren't computers designed to handle power failure?
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bd139:
Not much different here to be honest!
filssavi:

--- Quote from: Raj on June 12, 2020, 08:24:46 am ---"people won't like to replace batteries"
Meanwhile, we third world guys have to deal with using desktops cause it's too hot for laptops to not thermal throttle. But the ups are so horrible, they just save your pc from dying twice, then the battery is useless (doesn't keep the PC alive it'll it's done shutting down)

--- End quote ---

I’m sorry if I came out rude, it really was not my intention. I feel your pain, however the fact of the matter is that development in PC technology is driven by developed “first world” countries needs, and here the power grids are stable enough that the odd crash once or twice a year is not an issue.

Bolting the feature on after the fact is certainly doable, whether you can find a market large enough for it to be economically viable I’m not knowledgeable enough on markets where such a thing would be usefull
bd139:
It happens in first world countries as well: http://news.bbc.co.uk/1/hi/england/london/8162511.stm

Guess who was cooking off a alcohol stove then :)
Ian.M:
ATX form factor combo PSU/UPSes are commercially available. Its a niche market but big enough to support a number of manufacturers.
e.g. http://embedded-computing.com/news/trumpower-24v-battery-charger-2/
No special motherboard support required except for a free internally accessible USB port.

dmills:

--- Quote from: bd139 on June 12, 2020, 08:29:36 am ---Also most SSDs that aren't a piece of crap have "hold up" capacitors which allow the device to do a final consistent write in power failure scenarios (this is why you never buy cheap SSDs!).

--- End quote ---
We got shafted by that at work, industrial controller PC that gets hard power off fairly often, turns out the SSD was lying about when it had committed data which left the fs overlapping the journal writes and the data writes, occasional hilarity ensued.

Extensive testing of SSDs ensued, and the ONLY ones that really worked properly were the Intel ones (Which were not available in our required form factor), very annoying.
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