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Do I need to shut down computer when adding new case fans?

Last response: in Components
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November 20, 2009 6:04:04 PM

Hey guys this may sound like a stupid quesiton, but I really don't know the answer to it.

Should I power off the computer when plugging in a case fan into the power supply? The reason I would prefer to keep the computer on is because it takes a few minutes to boot up again. I would rather just plug it in and watch the temperature monitoring software to see if the fan is improving the temperature.
November 20, 2009 6:11:55 PM

I have done it numerous times so far, without any problems. fan-to-psu, fan-to-motherboard, fan-to-fan controller, no problems at all.
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a c 248 ) Power supply
November 20, 2009 6:13:32 PM

Yes, shut down the computer and pull the electrical plug from the wall outlet (mains). No point in risking the consequences of having a bad fan or a bad connector. Also no point in risking fingers accidently touching something.
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November 20, 2009 6:17:43 PM

When we have computers on the bench we run them all the time with open cases, BUT anytime you are actually adding something or touching the insides for any reason, you should have it off and unplugged. Too many things can go wrong!
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November 20, 2009 6:22:25 PM

You could, nobody's stopping you. Though anything could go wrong, the worst that could happen is you short out your power supply.

So why risk it.
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a c 139 ) Power supply
November 20, 2009 6:56:26 PM

The safe method is to shut down.

Personally, however, I wouldn't worry about plugging a fan into a Molex connector provided there is easy unfettered access and when you move the wire, it's not pulling anything else which might short out to a piece of metal on the case. I would NOT however plug the fan into a MoBo fan header while it's on under any circumstances.
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November 20, 2009 7:19:38 PM

Yes = less risk.
No = more risk.

All up to you.
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November 20, 2009 7:46:07 PM

lol worried about a few minute reboot so you spent 52 minutes waiting on a way to get out of it
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