No display after attempting to fix CPU

[evelyn.schmidt.725]

- Hi

Sorry for the slightly ambiguous title. About 3 hours since the time of this post I powered up my PC after around 2 1/2 weeks of no use. On startup, the fans and LEDs came on for about 3 seconds, shut off for 5, came on for 3, etc...
I decided to do some testing, I determined there was an issue with the CPU by using my modular PSU and disconnecting everything individually. After unplugging my CPU the computer's fans/LEDs came on without turning off, but, as expected, there was no display.
I disassembled my PC, took off the CPU cooler and cleaned up the CPU, there was no thermal paste strewn around, the bottom of it was clean and reflective like normal, and the motherboard pins were perfectly straight. I cleaned off the old paste and reapplied new, I actually got Arctic SIlver a while ago but never put it on. I slipped the CPU back on, mounted the cooler, and booted up the PC, this time the fans and LEDs came on, and stayed on, but there was still no display.
I decided to poke around on Google and came across a post on the Steam Community that was close really close to my issue. It said that the OP's Mobo stopped working, that he bought a new one, and that fixed all of his issues.
I'm consider putting down the money for a new one, I'd rather not, as it's expensive, but worth it if it means that my PC works.

Any ideas? Should I just go ahead and purchase one?

Any help would be greatly appreciated.

Specs:
CPU | i7-7700k ~ Kaby
Motherboard | MSI B150 M3 Gaming [BIOS updated to support Kaby]
GPU | ROG RX 580 8GB OC

 

[terry4536]

Try reseating the RAM. That will often fix a problem like yours.

Remove each stick of RAM one at a time, clean the contacts, blowout the dimm slot, and firmly reinstall the stick, and repeat for remaining RAM.


You can also try reseating the graphics card as above. Make sure that the PCIE power cable is firmly connected to the graphics card.

And lastly make sure that the CPU power and 24-pin are firmly connected to the motherboard.

Here are two general checklists for this problem.

http://www.tomshardware.com/faq/id-1893016/post-system-boot-video-output-troubleshooting-checklist.html

http://www.tomshardware.com/faq/id-2041564/troubleshoot-boot-display-issue.html

 

[terry4536]

It is very easy to bump a power cable enough that the connector becomes loose.

Another thing to try is to just go through the PC, and unplug teach connector and plug it back in. If one was loosened during your time inside the PC, that will often fix the problem.

 

[evelyn.schmidt.725]

Try reseating the RAM. That will often fix a problem like yours.

Remove each stick of RAM one at a time, clean the contacts, blowout the dimm slot, and firmly reinstall the stick, and repeat for remaining RAM.


You can also try reseating the graphics card as above. Make sure that the PCIE power cable is firmly connected to the graphics card.

And lastly make sure that the CPU power and 24-pin are firmly connected to the motherboard.

Here are two general checklists for this problem.

http://www.tomshardware.com/faq/id-1893016/post-system-boot-video-output-troubleshooting-checklist.html

http://www.tomshardware.com/faq/id-2041564/troubleshoot-boot-display-issue.html

Thanks! I think there is an issue with one of my individual RAM sticks.

 

[terry4536]

Try using just one stick of RAM at a time. Try it in different slots. That will narrow it down to one stick as the problem.