Plugged in motherboard to test before putting in PC, but freaks out

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PadgerMan

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May 11, 2013
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After three months of putting it off, I decided to start fixing my PC after I realized I can't play my new Steam games without it. Anyway, to avoid screwing everything up, I plugged in the bare essentials on the motherboard outside of the case before plugging it in: CPU Power, Motherboard Power, GPU Power, Power Switch, and CPU fan. However, when I turn it on, it starts up for one second, I hear things starting up, the CPU fan makes one revolution, and the case fan and LEDs start up, but then stop really quickly,. My hope is that since my motherboard is cheap and does nowt have a power button, the case power button won't work unless everything is plugged in. However, I don't want to follow through with putting it together if my motherboard is screwed.
 
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geofelt

geofelt

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Oct 9, 2006
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Testing outside of the case is a good idea.
Don't connect anything from the case.

The power switch is a momentary switch.
Look carefully at your motherboard and your motherboard documentation.
You want to identify the two pins probably labeled pwr-sw.
It is easy to confuse them.
If, for example you swapped the pwr-led and reset pins you might get strange results like you had.
Without the case leads, just touch the two pins with a screwdriver blade to get the motherboard started.
 
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PadgerMan

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May 11, 2013
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I tried using a screwdriver, but the same thing occured.
 
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