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Questions about putting a power supply outside the pc's case

Last response: in Components
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August 10, 2012 11:24:24 PM

OK, so I've got a slimline Acer desktop and there simply isn't room to stick a decent power supply in this thing. Some googling, however, has told me that its apparently ok to run a psu outside the pc's case. I have a few questions, though:

1) Is this, indeed, safe?

2) I've read that grounding is not a concern, as that is provided by the outlet via the third prong. Is this true? If not, what would I have to do to ground the psu?

3) Anything else I need to know? Potential hazards?

Thanks in advance.
a b ) Power supply
August 10, 2012 11:35:24 PM

It's perfectly safe, and you're correct about the grounding pin (correct me if I'm wrong) so you don't have any worries about shorting.

There are a few potential hazards, however -

1) If your PSU fan is of modern build, it will most likely have a 135MM fan on the bottom/top. If you orient it so the fan is on top, you have the chance of dropping something into the PSU while it's on.

2) This isn't really a concern, but you could get some major dust build up inside your PSU due to it being outside instead of sucking in air through a filtered intake (Not on all cases, but most bottom mounted PSU cases will have a filter)

3) You could knock your PSU off the table/off the top of your case which may cause you some troubles.

Besides that, I don't really see a problem with running a PSU outside your case :lol:  My brother ran one like that for around two months before getting his new case, didn't have an issue :) 

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a c 140 ) Power supply
August 11, 2012 3:01:12 AM

That's perfectly acceptable as long as you heed mocchan's advice. Many rigs have no case at all. As long as you are plugged into a properly grounded outlet, you won't have any grounding issues to worry about. If your PSU has a fan on the top/bottom, you may want to set the PSU on its side so dust doesn't get sucked into it as much.
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