Just finished building my first PC and it does not turn on

NarutosLilBro

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Jan 10, 2015
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20 minutes ago I finished assembling my first pc. I was super excited. I went to turn it on, but got absolutely nothing. My next step was to double check that I had plugged in all my cables. I found them all securely fastened, but the computer still would not turn on.

Next, I checked my front panel connectors. They still might be causing an issue because it doesn't specify which ones are positive and which ones are negative. I followed my case's manual for installing the front panel connectors so I was confident I did it right, but choose to unplug then replug all the cables. Still nothing from my computer.

I decided to do a quick google search to find a solution. I followed all of the steps in this guide
http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
but still have yet to resolve the problem.

One possible reason for the computer not turning on I can dismiss now: I built it on a wooden table to make sure not to fry the components from static.

Does anybody know what else might be causing the problem and what I can do to fix it?

If it helps a list of components can be found here http://ca.pcpartpicker.com/p/JQbxK8
 
Solution
You need a mnimum 750 watt power supply for the Sapphire Radeon R9 280X 3GB video card. You should remove that and use the Processor Graphics Intel HD Graphics 4400.

Power and reset wires are not polarize sensitive since all they do is have momentary contact to close the circuit to reset or turn on the PSU. The LED wires are polarized and the triangle marking on connector means it's the positive wire. It don't normally hurt anything if you do connect them the wrong way but they just don't work.
You need a mnimum 750 watt power supply for the Sapphire Radeon R9 280X 3GB video card. You should remove that and use the Processor Graphics Intel HD Graphics 4400.

Power and reset wires are not polarize sensitive since all they do is have momentary contact to close the circuit to reset or turn on the PSU. The LED wires are polarized and the triangle marking on connector means it's the positive wire. It don't normally hurt anything if you do connect them the wrong way but they just don't work.
 
Solution

NarutosLilBro

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Thanks for your feedback! I will double check my leds but I'm glad they won't be causing a problem. If it's not too much trouble, could I ask you to explain why I should switch gpus instead of switches psus?

 

NarutosLilBro

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How would I go about doing that?

 

spankmon

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You have to replace the I3 CPU with an older model (non-refresh) Haswell CPU, boot up and do the BIOS flash. Then verify it's working properly... then swap back the new I3 and boot up to verify it's now working. Your motherboard's user manual should show how to flash the BIOS.

But it's possible your motherboard already has a new BIOS. Really, if nothing happens when you press the power button now (no lights, fans) then the immediate problem is more likely the psu.