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PC Build Problem


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#1 Hawker2468

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Posted 07 May 2015 - 06:51 AM

This is my first build, the assembly part of the build seems simple to me, but I am having a problem and need help troubleshooting.

The computer cycles on and off.

I did a test build with the stock CPU cooler and it boots up normal. Then I installed the aftermarket cooler and it cycles on and off. If I loosen the screws that hold down the cooler bracket it will boot up normal. Tighten it back down and it cycles.

I removed the aftermarket cooler, carefully inspected the motherboard, everything looks good.

Then I installed the stock cooler, it boots up normal. Removed the stock cooler, installed the aftermarket cooler bracket only, no cooler, it cycles on and off.

I checked the installation of the aftermarket cooler 10 times, it is installed correctly according to the installation instructions.

 

This is what I have installed:

Motherboard - AS Rock Z97M Pro 4

CPU - Intel i5-4690K

CPU cooler - NZXT Respire T20

Power Supply - XFX TS550

Memory - Ballistix 2 ea 4GB DDR3-1600

Graphics Card - Gigabyte Geforce GTX 960

 

Does anyone have any ideas that would help?

 

Thanks,

Mike



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#2 QQQQ

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Posted 07 May 2015 - 08:48 AM

Looking at some of the reviews on Newegg for that cooler some are saying you have to tighten the screws in a cross pattern. Get each screw just started, .maybe 1 or 2 turns each. Then tighten 1 another turn, and switch to the screw diagonally across from that and tighten 1 turn and so on. Basically you don't want to start 1 screw and tighten it all of the way down, you want the the cooler to tighten down slowly and evenly.



#3 YeahBleeping

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Posted 07 May 2015 - 04:30 PM

My only guess is that the back plate for the mounting bracket of the NZ is touching or grounding out somewhere on the mainboard / case where it shouldn't be.



#4 mjd420nova

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Posted 07 May 2015 - 04:41 PM

The cycling of the PS points to a fault/short causing it to cycle.  New builds are often found to have standoffs shorting traces.  Even what looks clear when cold, the board grows when warmed up can actually shift its position on the stand offs.  I use nylon posts and screws and short braid strips to provide chassis ground where needed.



#5 coxchris

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Posted 07 May 2015 - 06:41 PM

you have to tied down the screws or unequal balance

 

1                                     2

 

 

 

3                                     4

 

 

tighten 1 twice 4 twice

tighten 3 twice 2 twice

 

repeat the steps until loosely tighten ()


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#6 Hawker2468

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Posted 07 May 2015 - 08:17 PM

Ok...so I loosened up the bracket and tightened it down in a crossing pattern, one small turn at a time, over and over again. Right now it is booting up normal.

I agree there is a short on the motherboard where the cooler bracket attaches, and I believe the problem will come back another day. But I'm moving on from that right now.

I have the rest of the parts installed and cable management done.

Now it is time to load the operating system and drivers. This part worries me. Hopefully all goes as planned.

Thanks for all the help, it definitely helps my confidence.

Mike






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