Laptop shutting down by itself

[NeonX]

OK, so i have a Dell Inspiron SE7520 and it worked fine till a few days ago, first it started to restart on it's own and now it completely shuts down the same way your desktop PC does when there's a power outage, except that i don't get a message that the laptop was shut down unexpectedly, also there's a click sound right next to the power button when it shuts down on it's own, it's not the HDD with Sentinel, checked it's health and performance everything was on 100% no bad sectors or errors, did a test on RAM and no errors were found, it's not overheating...much...,idle the CPU is 45-50°C on load it gets to 70-75°C max when gaming but that's about it, last time it shut down by itself when i tried to power it on it just went beeping 6 or 7 times with no startup screen or anything, just beeping, a few seconds after that when i tried powering it up again it worked fine, the most suspicious thing right now to me is the motherboard cause of that click sound it does, it might be that a capacitor is failing or something but i'm not sure, any other thoughts or suggestions on this?
Also one time the graphics bugged out kinda like this but only on not nearly as excessive after which the entire laptop froze and i needed to force shut down it.
http/en.community.dell.com/cfs-file/__key/communityserver-discussions-components-files/3518/xps-15z-screen-small.jpg
Edit: OK, so now this morning i couldnt get the laptop to boot-up it was only beeping...and my mistake it was beeping 4 times in a sequence continually, i know that beeping 4 times is a RAM problem, switched up ram stick placements didnt work then i took 1 out didn't work, took the other one out placed the 1st one back and works again...soo...faulty RAM? i also got the windows to boot up with both sticks once and the windows crashed with a Page Fault In Nonpaged Area error, now i tried again with both sticks and booted up and still working fine

 

[hang-the-9]

I'd try running on one stick at a time and see if it's stable on that. Then try the other stick. Then try the other memory slot. Does sound like a RAM issue, either one of the sticks is bad or one of the slots is bad.