Why is my computer not working?

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neil_v19

Honorable
Jul 5, 2013
9
0
10,510
Yesterday i built my first (gaming) computer. It was relatively easy to build and everything went seemingly ok. I hooked it up to my moniter after i was finished and turned it on. There was no response. So i tried a few more times and then called my neighbor over who knows a ton about computers and has built a handful himself. He couldn't find a problem in the build either and he told me to just take it to microcenter. He thinks that either the motherboard or the power supply is faulty. I did some research and found out that apparently when there is absolutely no response, it means there is something wrong with the hardware. Is this true? What could be wrong with the computer?
Mobo: asus z87-pro
Cpu: intel i5-4670k
Gpu: msi gtx760
Psu: corsair cx750m
Ram: crucial ballistix 2x4gb ddr3-1600
Hdd: toshiba 1 tb
Ssd: samsung 840 120gb
Case: nzxt phantom 410
 
Solution
Tom Tancredi
My steps usually are to lay the motherboard on some wood, connect the CPU, 1 stick of memory, the power button from the case, then the PSU powering it up. Alot of boards have onboard video, so I plug in the monitor. I validate that works by powering on and accessing BIOS. I switch in BIOS under the video section to First Use the PCIe slot then Internal Video. I shut down and plug in the video card and validate that works and I can get to BIOS.

Once I validated that then I unplug the PSU and GPU then slide the Mobo into the case, secure it down and again plus just the PSU and GPU into it, test it that level then just add one component (second mem, first HDD, second HDD, etc.) each time booting only to BIOS and validate each component...
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neil_v19

Honorable
Jul 5, 2013
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10,510


Yup, absolutely no response whatsoever. Not even a flinch of a fan or a flickering light or anything
 
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Martell1977

Martell1977

Splendid
Oct 26, 2010
3,846
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24,960
Well, if the switch on the back on the PSU is on and all the connections are right (also assuming the power switch to mobo pin-out is correct), I'd look at the PSU first. If the PSU was good but the motherboard was bad I'd expect the case fans at least to spin.
 
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bryonhowley

bryonhowley

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Oct 24, 2011
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That was my first thought also make sure the switch on the back of the PSU is in the on position. Also make sure the 110/240 switch(if your PSU has one) is in the correct position.
 
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Tom Tancredi

Tom Tancredi

Judicious
May 9, 2013
4,999
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32,960
My steps usually are to lay the motherboard on some wood, connect the CPU, 1 stick of memory, the power button from the case, then the PSU powering it up. Alot of boards have onboard video, so I plug in the monitor. I validate that works by powering on and accessing BIOS. I switch in BIOS under the video section to First Use the PCIe slot then Internal Video. I shut down and plug in the video card and validate that works and I can get to BIOS.

Once I validated that then I unplug the PSU and GPU then slide the Mobo into the case, secure it down and again plus just the PSU and GPU into it, test it that level then just add one component (second mem, first HDD, second HDD, etc.) each time booting only to BIOS and validate each component (notice no Windows yet).
 
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