Ran fine for 2 weeks and now Cpu led stays on and will not post Q code 00

I just built a new system and everything was working fine for about 2 weels or so. The idle and load temps were a bit higher than I was wanting so I decided to try a better thermal paste. I took out the cpu, cleaned it off good and applied the new thermal paste. When I reinstalled it now the cpu led stays on and it will not post. The light just stays on until I manually turn the system off. I didnt touch or rearrange any of the other system components when I did this. Just the cpu itself and of course the cpu cooler. Any thoughts on what might have caused this or how I can get my brand new rig running again?

All the lights and leds for all components are coming on when I power on as well as all the fans. I checked the socket good and there are no bent pins. I am at a loss at this point. I'm going to try taking it all apart and building it outside of the case and see what happens. Any help or suggestions would be greatly appreciated. I just don't understand how it can be running fine ever since the initial build and then do this just cause I change to a better thermal paste. Thanks in advance for your time.

Asus X99 Deluxe mobo
I7 5930k
CM nepton 280L cpu cooler
Evga gtx 980 ti gpu
Corsair rm1000i psu
32g hyperx ddr4
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More about ran fine weeks cpu led stays post code
  1. Best answer
    Have you made sure your BIOS is up to date? While also making sure your standoffs for the AIO cooler aren't in a haphazard way? You may want to remove your aftermarket cooler and inspect if the CPU socket has any bent pins with a magnifying glass. It could also be that there is a grounding issue - take note if the motherboard is making contact with any part of the chassis. This can and will prevent system's from booting up to prevent damage to your components.

    If the system works when built outside of your chassis then it's a grounding issue.
    Breadboarding, stripping it down to the basics for troubleshooting
    If you have to read this, something is very wrong with your PC such that you need to fully troubleshoot your system at the most basic hardware level, Breadboarding. A little background: breadboards were what we called our lab equipment in electronics... Read More
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