Computer shutting down by itself, Help!

[Kiro5amu]

Hi, the title says it all. I've been reading some other threads and it looks like PSU's are the thing that causes this problem most of the time
(Sorry if I posted this in the wrong board)

Here are the specs for my pc:
Built it 2 years ago
Processor - Intel Core I7 4770k (Mult-Threading atm)
Video Card - Nvidia GeForce GTX 770 DirectCU II OC
RAM - Corsair Vengeance 8GB DDR3 1600Mhz
Psu - Corsair CX750M
OS - Windows 10 Home Premium
Hard Drives - 1TB Samsung HDD And 120GB Samsung SSD
Im thinking I might go back to windows 7, since it didnt happen while I was in that OS

 

[bwinzey]

What CPU cooler are you using?

 

[SchizTech]

To be clear, when you say it's shutting down do you mean it goes out immediately (like a light bulb)? If it goes through a Windows shutdown by itself then it's a software bug but the former makes it more likely there's something happening in hardware

 

[SchizTech]

What CPU cooler are you using?

To expand on this question, is the cooler clean (free of dust)? If it hasn't been cleaned in two years that's a likely answer.

 

[Kiro5amu]

To be clear, when you say it's shutting down do you mean it goes out immediately (like a light bulb)? If it goes through a Windows shutdown by itself then it's a software bug but the former makes it more likely there's something happening in hardware

Thanks for replying! It randomly shuts down no matter whats the load, and there's no prompt or notification, its like I would force a shut down by disconnecting the plug off my wall
Yes, I clean it regularly and I do not think overheating is the problem, since no temps go above 80c when gaming or doing high load stuff

 

[SchizTech]

OK then, it does sound like the PSU is the first place to look. I'm not convinced that's the issue because it doesn't always happen at high load but the only way to be sure is to test. Hopefully you can arrange to borrow a PSU to test with so you don't have to blindly buy a new part.

If that doesn't solve it, then it's likely a motherboard issue.

 

[Kiro5amu]

OK then, it does sound like the PSU is the first place to look. I'm not convinced that's the issue because it doesn't always happen at high load but the only way to be sure is to test. Hopefully you can arrange to borrow a PSU to test with so you don't have to blindly buy a new part.

If that doesn't solve it, then it's likely a motherboard issue.

Hi. Yes, I'm replacing the PSU soon and see if that is the issue. The motherboard itself was fine, but the only thing that seems to be like an issue is that I can't put RAM sticks in the A2 and B2 slots, I can't boot if I put at least 1 stick in there. Currently my set is in A1 and B1 but thats about it for the Motherboard.
I was just also experiencing freezes when playing for more than an hour today, my computer would not respond and my task manager showed high activity in my Internet connection,SSD and Cpu. I do not know if it has anything to do with it but still worries me

 

[SchizTech]

What was the state of the computer when you noticed the high CPU, SSD and network activity (how many programs were running)? If those are abnormally high when the PC has few or no programs running, that does point to either hidden processes (possible malware) or Windows processes or services running amok. I'd run some scans to be safe (try Malwarebytes anti-malware as a good place to start). High background activity could cause sluggish behavior though it shouldn't cause that sort of abrupt shutdown.

When I mentioned the possibility of motherboard problems, that was just as the next place to look in case there are still issues with a new PSU as opposed to a place to look immediately. There's something going on there since not all RAM slots are good which suggests the possibility whatever caused that issue also did further damage (leading to shutdowns). As I said though that's just a thought to keep in mind until we see what happens when a new PSU is tried.

 

[Kiro5amu]

What was the state of the computer when you noticed the high CPU, SSD and network activity (how many programs were running)? If those are abnormally high when the PC has few or no programs running, that does point to either hidden processes (possible malware) or Windows processes or services running amok. I'd run some scans to be safe (try Malwarebytes anti-malware as a good place to start). High background activity could cause sluggish behavior though it shouldn't cause that sort of abrupt shutdown.

When I mentioned the possibility of motherboard problems, that was just as the next place to look in case there are still issues with a new PSU as opposed to a place to look immediately. There's something going on there since not all RAM slots are good which suggests the possibility whatever caused that issue also did further damage (leading to shutdowns). As I said though that's just a thought to keep in mind until we see what happens when a new PSU is tried.

I had just finished a match in Overwatch, and when I was playing I was experiencing major fps drops or minor freezes, which lagged me too (They didnt last long, and after it recovered my PING was really high but it would cool down in seconds) Also, I booted my pc today and my Wi-Fi adapter wasn't picking up my internet connection so I restarted it, and right when it started the restart I get a Bluescreen saying KERNEL_SECURITY_CHECK_FAILURE. This bluescreen appears when my Wi-Fi adapter stops working or if there is something wrong with it, but so far I have not found a solution even when it says that I have the latest drivers