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How to identify the front case power switch ground

Started by mlwjackson , Sep 18 2007 08:49 PM

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#1
mlwjackson

Posted 18 September 2007 - 08:49 PM

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Member
131 posts

My old emachines T2885 died and is being rebuild using the old case, CD and DVD burners. The new mobo is an MSI K9NBPM2-FID. My problem is that I am unsure how to orient the plugs from the case front for the HDD LED, Power LED and the Power Swithch on their respective connectors. I know which connector is which but don't know how to identify which side of the plug is the ground. The plugs are not keyed so they can be reversed. I know that gettng the LEDs is no big deal, it won't hurt the LED they just won't work until reversed. However, I am unsure of the potential problems of reverseing the power switch plug. There are little triangels on the plugs. Do these consistently identify the ground, power or neutral?

#2
Neil Jones

Posted 19 September 2007 - 02:36 AM

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8,476 posts

The power switch it doesn't matter which way round it goes. All it needs to do when the power button is pressed is complete the circuit. You can demonstrate this by shorting the two connectors with a bog standard screwdriver.
The LEDs, if they're the wrong way round, it won't hurt anything they just won't light up.