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Windows 7: Necessary to cut power to the MB when swapping a HD?

13 Jan 2015   #1
riffwraith

W7 64 Ult
 
 
Necessary to cut power to the MB when swapping a HD?

Hey all. Is it necessary to cut power to the MB when connecting and/or disconnecting a SATA drive? I am not asking whether or not to turn the computer off - that I do, of course. But should I be turning the power switch on the PSU to the off position - or is that not necessary?

Thanks in advance.


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13 Jan 2015   #2
oscer1

win 7 64 bit
 
 

Hi

it is always best to remove all power when removing hardware. meaning unplug from wall.
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13 Jan 2015   #3
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

And once it is unplugged, hold the power-on key for 20 seconds to drain any static electricity.
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13 Jan 2015   #4
riffwraith

W7 64 Ult
 
 

Thanks guys.

So, with the PSU off, holding the power on button drains static electricity? Never heard that before...
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13 Jan 2015   #5
Berton

Windows 7 Ultimate 64-bit, Windows 8.1 64-bit, Mac OS X 10.10, Linux Mint 17, Windows 10 Pro TP
 
 

No, it's residual electricity. A modern ATX motherboard has constant power when it's plugged into a power source. The power switch only signals to the motherboard to get things started. The old AT motherboards had the power switch wired directly to the power supply.

Static electricity is what is produced by human actions such as squirming around on a cloth chair, walking across a carpet, rubbing a balloon in the hair, etc.
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 Necessary to cut power to the MB when swapping a HD?




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