Where are the pins for the power switch on this thing?

Solution
Page 79 of the H61H2-MV User manual:

ECS_H61_H2_MV_F_Panel_Pinout.jpg

bwinzey

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Jun 26, 2016
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There's an array of pins labeled F_Panel in the bottom right, above the PCIe slot. It doesn't say which pins do what, but the best way to find out is to drag a piece of metal, like a USB, along the sides (touching any 2 pins) until you find the two that makes it turn on. Once it turns on, make sure to pull out the piece of metal, as the power and HDD pins will have power and if shorted, might break something.
 


I don't recommend this, this technique makes it real easy to short out your board.
 

bwinzey

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Jun 26, 2016
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If you have some sort of OEM board without documentation, it's basically the only way. And if you're careful nothing will happen.
I hadn't noticed the pinout in the bottom of the manual... kinda stupid putting it away from the board components list...