X7DCA-L does not power on

php4u

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Dec 9, 2010
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I am replacing a motherboard (X7DCA-L dual xeon), and have a problem with the new one - it does not power on. The green light on the MB is on, and when i depress the "on" button, a green "power" light comes on for a second then turns off.
I have pulled the MB out to check it for shorts and found none. The previous MB worked, so i know its not the power supply.

I unplugged the SATA and audio cables. I have reversed the power and reset cables. Before I start a RMA, I want to make sure i'm not overlooking anything.

Any suggestions greatly appreciated!