Question PC crashed and now the power cycles on and off repeatedly

[ZoSo42]

Hi all,

After doing my best to research this topic, I wanted to post here since I have not been able to find a solution.

Last week my computer(built in 2014) crashed while playing a graphically intense game. I believe this has happened twice before but in slightly different situations. This time when I tried to power my system back on the power cycles on and off (~3 seconds of on time) forever. I flip the power switch on my psu to stop the power cycling.

From the internet I've tried a few things
1) Checking and cleaning RAM
2)Trying to boot with no GPU
3)Switching out power supplies.
4)Booting from an alternative SSD

At this point I'm afraid that the problem is either my Motherboard or CPU.

Does anyone have any suggestions on what the problem might be or have a way of testing if my CPU or Motherboard is bad with out directly replacing them? My CPU fan (hyper 212 evo) spins on start up and appears to be acting normal.

 

[R_1]

How To - "No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

step 17 is the speaker telling you anything?

you can fashion a speaker for diagnostic purposes
canned diagnostic speaker rant: speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip
https://wesbellwireandcable.com/images/cutwire.png
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant

do you have another PSU to test out. power issues usually lead to the PSU. what make and model PSU do you have?
can you borrow one from a friend/sibling/neighbor for testing?

remove the RAM from the motherboard and boot the system, the motherboard should beep like you are hurting it. the beep pattern you hear will verify that the motherboard is alive enough to run the POST.

 

[rgd1101]

full system spec? include make and model of the psu