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I am looking for a low power, low end pc able to run 24/7 without overheating and a way to support it in case of power failure. Power failures can be up to 72 hours.

The pc dosen't need a monitor or keyboard. A modem must also be protected in case of power failure.

When i say low end, i don't mean crap. The cpu needs to be x86 and have at least 1k cpu in this chart: http://www.cpubenchmark.net/index.php

What's the best way to do this?

EDIT: more info.

I need to run a home server. The server will perform light tasks mainly. A x86 cpu sadly is the only route for my use. I want to be able to run the server and the router/modem in case of power failure.

Now, regarding how long the power will fail:

1) 1 hours is OK for most situations. (say 90%)

2) 3 hours is OK (say 98%)

3) 6 hours is more thank OK. (say 99.5%)

4) On extreme cases the power might fail days. I believe this is very unlikely to happen. More is great but, really, how ofter power will fail more than 3 hours? I believe once every year at best. Well, that's too rare to care about.

Given the above, I am looking for a cost effective way to archive 1-3 hour power or 6 hour if possible.

Solutions:

You guys give me great ideas.

1) Power generator: no good as power will fail for 10 seconds before returning. Also I read online, "clean" power generators cost 1.5k+, so it's out of budged. Non clean generator might damage electronics, right?

2) Solar power: i don't know for sure about this. Sounds like a great idea, too good to be true, honestly. For only 200$ i get 100+w? What are the drawbacks here?

3) UPS: This seems to be the best. The only problem is the cost.

Cost

< 200$ = great 400$ = budged limit

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HAHAHAHAHAHA no. –  Ignacio Vazquez-Abrams Jul 1 '13 at 3:47
    
I think an Atom based PC and a really, really big UPS could do it... But with the cost of the UPS you are definitely pushing big budget. –  AthomSfere Jul 1 '13 at 3:54
    
solar power maybe ? –  Sirex Jul 1 '13 at 3:54
    
I am looking for a ups or portable battery under 500 usd. I can sacrifice cpu performance more. Something like rasberry pi for example will work? –  Zen 8000k Jul 1 '13 at 3:56
    
@Sirex great idea, please tell me more –  Zen 8000k Jul 1 '13 at 3:56
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closed as off-topic by Journeyman Geek, Karan, nhinkle Jul 1 '13 at 5:09

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1 Answer

up vote 1 down vote accepted

"Power failures can be up to 72 hours"

Becasue there is no real info about where/what/how it will be needed/used (in or outdoor / manned unmanned) maybe a Diesel generator could be the solution?

Personally I would also go for a laptop with a linux variant. (In case of a power outage it has an accupack and can startup the generator with some software!?) And what about the modem, adsl/dsl or cable ...at power outage it will instantly loose connection so a small ups at least for that one will be needed also. (Maybe a secondhand UPS to solve short term issue and in meanwhile the generator can startup for the rest of time?!)

Solar ofcourse is also an option but seen from budget as mentioned I personally would go for some kind of electric generator as I mentioned.

But ofcourse it depends on to many unmentioned facts to give any reasonable answer at all imho.

Update/Add on to one of my suggestions after reading the "extra" information.

Okay, suggestion from my side with some explanation about the why I would suggest to do as following.

1- Laptop.
Why?
it has an accupack and will only use it as "fallback" in case of a powerfailler!
# Our (linux) laptop is up and running now for over 280 days without any problems. (and believe me that is nothing)
No temperature probs, screen isn't active, it runs ubuntu server, makes backups to a NAS, is accesspoint for all the other pc's (5) (firewall, proxyserver, webserver, sql server and more) it even is streaming video to our audio/video home-system and much more.
In case of a power outage it will -not- give any problems because it will fallback to the build-in accu. So no issues with loss of tasks, interruptions or whatever.
It covers easy 3 hours without "power from the wall" (Okay no streaming at that moment, why would it be needed at that moment because home-system (read TV and so on) has no power neither)

2- UPS (even second hand)
Why? Because your modem needs one.
Whatever you do/want, if access is needed from outside, you need to hold line up and running. Because of the power it needs (almost nothing) a good/cheap ups can keep that one up very long(read 3 hours easy).

In my scenario (if you take some time for research) you could manage ALL (laptop/modem/ups) for 400$ or even less if it doesn't need to be new.

Why I not suggest a pc, because your "scenario and budget" doesn't fit together, but you know that probably by now after you did some research, i think/hope.

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Thanks, you pointed me to the right direction! –  Zen 8000k Jul 1 '13 at 17:44
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