Newly built PC won't turn on!

[Max Kreations]

Hi, I've just finished building my first PC, I was going to connect it to a monitor, but it turns out I don't have a VGA or HDMI cable, so I ordered it off amazon. But while I'm waiting I decided to plug the power supply into the wall and see if my PC turns on. I pressed the "on" button but nothing happened. Maybe I forgot to connect a cable, so I took a photo of every empty socket I could find:

http://bit.ly/2kmsVkN - the motherboard (note: I haven't got a GPU because I'm using an APU)
http://bit.ly/2lLxHEC - 2 cables from the power supply that I'm not using
http://bit.ly/2lfpzPL - the hard drive
http://bit.ly/2lLgyeD - an empty socket on the hard drive, i don't know what's supposed to go there
http://bit.ly/2l40qp3 - three empty sockets on the motherboard, labeled JTPM1, JCOM1, and JUSB2
http://bit.ly/2lLyKog - 2 more empty sockets, labeled JFP2 and JSPI1
http://bit.ly/2ksLsr4 - 3 more empty sockets on the motherbaord that kind of look like the RAM DIMM sockets, these are labeled, from bottom, PCI 1, PCI_E2 and PCI_E1

The motherboard came with 2 SATA cables, but I've only used one (connected between the hard drive to the motherboard). Do I need to connect the other one somewhere?

If you need to know the power supply I'm using is EVGA 430 watts, and the motherboard is MSI A68HM-E33 V2

Why doesn't my PC turn on? I'd really appreciate any and all feedback you guys can give me

 

[COLGeek]

MERGED QUESTION
Question from Max Kreations : "Having trouble connecting EPS12V cable!"

Hi, It's my first time building a PC and I decided to plug everything in to see if it would start up. I didn't have a monitor or keyboard connected, I was just curious to see if it would turn on. It didn't.
So now I'm trouble shooting for any little thing which may cause a problem.

I've noticed that my power supply (EVGA 430w) has a 4+4 pin EPS12V cable which I plugged in the appropriate slot on the motherboard, labeled JPWR2.
The motherboard I'm using is an MSI A68HM-E33 V2.
This EPS12V cable splits at the end into two separate 4-pin connectors, but here's the problem: my motherboard only has ONE socket which fits these cables, so I plugged one in and the other is just sitting there doing nothing.

http://bit.ly/2kmcJQG - The EPS12V cable
http://bit.ly/2lL5azZ - A close up, it splits at the end into two 4-pin connectors labeled "CPU"
http://bit.ly/2ksdpyY - The socket on the motherboard labeled "JPWR2"
http://bit.ly/2km1ZSs - Plugged in
http://bit.ly/2lKWoCc - You can see that one of the 2 connectors is left hanging there

Is this a problem? Did I do something wrong while assembling this PC? I'd really appreciate any and all help you guys can give me

If MB has only one 4pin connector like that, than it's all it needs so other one can sit there and do nothing.

 

[COLGeek]

Please don't start a new thread to ask the same basic question as previously asked. Stay in your thread and follow-up as needed to get a resolution.

 

[Max Kreations]

Please don't start a new thread to ask the same basic question as previously asked. Stay in your thread and follow-up as needed to get a resolution.

Okay sorry.