No power to a new build

[pointless132]

So im new here but i thought my question would be best answered on this site. So hi to everyone.

Anyway, i just received new parts to build a computer and i had everything assembled. I go to turn on the computer and no power, no noise, no fans, nothing..... I thought maybe i connected the power sw leads incorrectly and tried switching them. Again no power, i tried every combination but the first or second time i reconnected them should have worked since the motherboard specifies where everything should go.
My question is could the motherboard be broken even before i got to try it out or is my case ****in up? I have a hard time believing that my mobo is broken, id like to think the power cables in my case is effed. I could go ahead and just put my mobo in this computer to see if it works but i want to see if there is any shortcuts i can take to test if my mobo is workin.
Thanks all, i can provide additional info if needed

 

[Slaymate]

Did you use the stand-offs between the motherboard and the case motherboard tray?

What parts did you buy? Manufacturer and Model # please.

The motherboard should have two connectors plugged into it from the power supply, a 24-pin and a 8-pin.

Go thru this guide and make sure you didn't skip anything.

The animated guide to Building a PC. Learn to build a PC from scratch with PCitYourself!

You can always remove the parts from the case and reassemble them on top of the box, or on a table (someplace non-conductive, DO NOT assemble the components on the carpet).

 

[brinks]

Maybe the power supply is dead if nothing turns on, so you should test the psu by itself to see if it works.

 

[pointless132]

actually, i forgot about the standoffs. How would this affect my computer from turnin off and on? Would it make some type of current with the case or something and fry it?

I already tested 2 psu's and both work fine. Actually both are new. As for parts:
Mobo: biostar a870
Video card: HIS H467QR1GH Radeon HD 4670
Case: Cooler master centurion 5
...............
That standoffs comment is really botherin me now.

Gonna go try and put them on

 

[brinks]

Yes, you can create a short on the motherboard if you don't use standoffs. The standoff's are there to raise the motherboard off the motherboard tray/case enough so no contact is made between the two which could result in shorting out.

 

[MindoverMaster]

And be sure that none of the standoffs are in places that there aren't holes.

 

[pointless132]

THANKS!!!!!!!!!!!!!!! That fixed my problem!