No POST beeps on startup, how to test mobo/CPU? (followed sticky guide, still having problems)

actkk

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My first time posting on here, I'll do my best to make it count.

I am building a new computer using parts received for Christmas. I picked out the parts on Black Friday, and my folks bought them for me in exchange for them being the gifts under the tree.

I did not get any POST beeps when I first hooked up the system. Sometimes I would get a screen (the output type chosen by the machine varied constantly between video card outputs and onboard outputs) that said "Disk Read Error: Press ctrl+alt+delete to reboot". Now I have gone and removed everything but the motherboard, PSU, and CPU/heatsink.

The PSU I have tested by connecting it to another PC I have, and when I did so I got the single beep, so I know that it is working properly. As such, I am down to it either being a problem with the CPU or a problem with the Motherboard. I know that I had some difficulties installing both initially. Most significantly, I found that it was quite a tight fit when I locked the CPU into the mobo with the lever (LGA 1150), though I was pretty certain that it did need to be quite tight to work correctly. On top of this, I originally installed the heatsink sideways, so after realizing my mistake, I rotated it 90 degrees while still attached to the CPU via (not yet solidified) thermal paste. I doubt that the thermal paste has yet solidified at all since I've barely been able to run the machine. I also suspect that the paste was spread around quite well by my rotating the heatsink. The heatsink fastens with a four-screw bracket, which I screwed in until the screws were tight.

Other than those things, I can only point out a few other possible clues. When the PSU was plugged in, the mobo lights up and seems responsive. The PSU runs temporarily but then shuts down (shutting the PC down with it) and then restarts again shortly afterward. This cycle continues until the PSU is unplugged. Also, I have not noticed any differences between the CPU power cord being plugged in or not plugged in to the mobo. I am not sure if that is relevant however.

Overall, I really want to try and solve these issues ASAP, so I can get this machine up and running and so I can hopefully replace parts while under whatever relevant warranties may apply (I ordered from Newegg, the mobo has a manufacturer's warranty but I'm not so sure about the processor).

The models are the following:

Mobo: Gigabyte GA-Z97X-UD3H-BK
CPU: Intel i7-4790k Haswell 4.00GHz LGA 1150
PSU: EVGA 600 B 80 Plus Bronze 600W
Heatsink: Cooler Master Hyper 212 EVO

I can provide further information as necessary. Thank you for any help you can provide.
 

actkk

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Sorry for the late response, I've been far from the computer.

SN143700013951 (old one) and SN143700013522 (new one)

Incidentally, I ordered another of the same motherboard, and it is having the same issue in the same setup.

I also found that the first motherboard had some bent pins, is it possible that this has shorted out the CPU? (LGA 1150 socket)

Also, I'm not sure I can find the computer speaker on my case. The fractal R4 is the make, and it seems a common problem online. I plugged in the HD Audio plug on the case, but I don't know if it's the right one, as the motherboard also has a plug on it labelled 'SPEAK' which is 4 pins wide. Is it possible to take the PC speaker out of another computer and use it in this computer?

UPDATE: I looked into the matter and found that, as far as I can tell, my case doesn't have a computer speaker. This would explain a lot, eh? Using another computer's speaker, I got a response finally: a constant beep (somewhere around 260-280 BPM). According to ComputerHope, IBM boards with that issue mean either a loose card, no power, or a short. Since I don't have any cards plugged in, it's either no power or a short. I don't know how to tell which is which, but something tells me it's the latter.
 

actkk

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That's good to know. I updated my reply above with some more information. Do you have any further advice on how to proceed? Thanks again for your help thus far.
 

actkk

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I appear to have fixed it from here. The computer didn't respond properly because I hadn't yet put in memory. After adding a stick of RAM, the single beep came back and all is well. I'm going to continue setup and will ask a new question if anything more comes up.

Thanks again for all of your help!