emachine power sitch wiring

April 15, 2009 at 17:39:30
Specs: Windows XP
the power supply and motherboard in my daughters pc recently went bad. after ordering replacement parts, i found that my diagram for the power button wiring is missing. are there any resources to show which power switch wire goes where on the motherboard? it is an emachine t3828. thanks for any help you may be able to provide!

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#1
April 15, 2009 at 22:50:35
One of the user guides here may help:

http://www.emachines.com/support/pr...

The power switch is a 2-wire connection to the motherboard. The 2 pins on the motherboard it connects to will be labeled something like PW. The polarity on it doesn't matter. There will also be a power LED connection. Usually those wires are green and black. Green is positive. There's also a hard drive activity LED with (usually) red and black wires. Red is positive. Hopefully that polarity will be marked on the motherboard. If not, try it one way and if the LED doesn't light up, try it the other way. The power (green) LED should be on whenever the PC is on. The hard drive (red) LED will be on whenever the drive is being accessed.

There might be pins on the motherboard for reset. Some computers don't have a reset button. In that case you wouldn't connect anything to it. If your case does have a reset button then connect the wires to the reset pins on the motherboard. Polarity doesn't matter for that.


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