New CPU / Mobo / RAM upgrade, won't even power up.

[Quesadilla]

Hey everyone, I need some help with an issue I've been having working on a friends PC.

He got a brand new ASUS P8 H61-M LE CSM, i5 3570, and 8 GB of Corsair Vengeance.

Everything is mounted correctly, standoffs are in the correct spots, cooler is a Corsair H60 Liquid Cooler, mounted correctly and connected to fan power.

The board uses a 4-pin connector from the PSU(1250w) and the standard 20-pin. I have the power sw correctly connected into the panel on the motherboard, however when I try to boot, the damn thing doesn't even turn on.

The power supply is receiving power(LED is on) and the motherboard LED is ON(green) but whenever I hit the power switch, nothing happens. The case is aftermarket, old as fuck and in pretty poor condition so I would prob recommend getting a new case indefinitely. But could it be the MoBo that's bad? DoA? Did I forget to ground something? I've put together rigs enough to know what I'm doing but I've never encountered this but maybe one time before and it was a motherboard issue.

Would love some insight/feedback!

Thank you in advance!<3

[GiGaBiTe]

Is the power switch connected to the right place? The front panel header is often confusing.

[bowedyapper]

[t]http://i1084.photobucket.com/albums/j405/BowedYapper/Untitled_zpsb6b40b81.png[/t]

Try carefully shorting both pins circled in red to see if it will boot up, if it does, then you probably have the switches and led's in the wrong way.

If nothing happens, you could have a power connector in the wrong place, or a dead mobo/PSU.

[Odessa_cubage]

-derp-

[bowedyapper]

I am not referring to polarity, it could be up and down instead of left to right as seen in the picture.

[Levelog]

The issue is you got a 6x chipset board with an ivy bridge processor. It will require a bios flash with a sandy bridge processor installed to be compatible with your i5

[GiGaBiTe]

[QUOTE=Levelog;44914881]The issue is you got a 6x chipset board with an ivy bridge processor. It will require a bios flash with a sandy bridge processor installed to be compatible with your i5[/QUOTE]

Even if the motherboard doesn't have the correct microcode for the installed CPU, it should still power on, even though it most likely won't POST.

[Levelog]

True, but it will still be an issue regardless

[editline]26th May 2014[/editline]

Try jumping the psu though to make sure it actually turns on.