Desktop switched off and won't turn back on

[tking16]

I built my PC around 2 months ago, so all the components are brand new. I was just using then suddenly it powered off. Upon trying to turn it back on the power light came on but the fans weren't spinning. I could hear something coming from the case though.

I decided to switch it off by the mains and then on again. Now when I try to turn it on not even the lights come on! But I can still hear something from inside. It's too early for the PSU to have died already so my guess is something might have fallen out or something.

Case - Fractal Design Core 2300
PSU - 550W Corsair VS550 PSU Retail
GPU - 4GB SAPP NITRO R9 380X DUAL-X
RAM - 2x8GB Cors Veng LPX DDR4-3200
MotherBoard - ASRock H170A-X1 Motherboard
CPU - Intel Core Skylake Processor i5-6500/3.2 GHz (Turbo Boost 3.6 GHz - 4 Core 6Mo Cache Socket 1151 (BX80662I56500)
OS - Windows 10

Help would be appreciated, also this is the first time I've ever built a PC by myself.

 

[Karsten75]

First step, identify the "something".

Then get a cheap PSU tester to make sure all the leads still have voltage.

http://www.newegg.com/Product/Product.aspx?Item=N82E16899261023 or
http://smile.amazon.com/Rosewill-Digital-Supply-Tester-RTK-PST/dp/B004Q7FUGM

If the PSU still has power, then breadboard your PC:

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

 

[tking16]

Thanks for the help Karsten,

I managed to fix it. I felt around the connectors on my motherboard and It seems my 24 pin wasn't fully inserted. Being a first time builder guess I didn't wanna shove it in too hard in case I broke it. Was the case with my RAM when I first built it.