Strange Problems with build

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12 Feb 2013
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East Mids
Got a rather interesting one for you,

Almost done with a rampage IV black build, just finished doing all the cabling however a rather puzzling issue.

Before turning on the machine, the second the PSU is turned on the motherboard lights up, the optional CPU fan spins up, one out of the 4 Chassis fans and the graphics card fan starts.

When I do press the power button the rest of the fans spin up and the closed loop cooler on the CPU fan header starts.

Obviously due to the CPU cooler not running I have only left it on a for barley a second as don't want to fry the chip. But any idea's what is going on?

Built a good number of PC's and never experienced this before, any suggestions? I've checked the front panel for a sticky button and the connectors but nothing.
 
Try without the power button all together and short it with a screwdriver or something to turn the PC on?
 
Nope both power and reset aren't connected but it still manages to turn on. Not fully mind you it's a sort of half power on state.
 
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