PC hard shut downs after logging in

[dhmnuts]

Reently my PC has been freezing somehow I fixed that issue by running CCleaner and just clearing up space. Now after I turned on my PC it shuts off right after I log in. HArd shut off, doesn't say system shutting down or anything. My guess is my PSU. I'd like some input from this. Also if it is my PSU what would you guys recommended getting? I can't remember the exact model of my PSU but it's 750 watt Corsair PSU. It's at least two years old. I believe its the CX750M. I also just cleaned my PC yesterday and it continues to shut down after logging in so I don't believe it's overheating anymore.

 

[ingtar33]

generally hard shutdowns (black screen, no blue screen just shut down like someone pulled the power cord) are caused by overheating.

Make certain all fans are working properly, make certain the cpu fan is spinning make certain the power supply fan is working. Those are the two main contributors to this type of overheat.

If everything seems to be working ok, keep the side of your case off and stick a room fan in the openning, set it on high and see if the problem goes away. if it does you've confirmed overheating, if it does not, then we might have a power supply problem. At that point i'd try another power supply and see if the issue goes away.

 

[dhmnuts]

It runs just find untill I log in. Otherwise it's working fine.

Edit: I do hear a loud fan noise like a bearing is going bad. I forgot to add that, also before this situation was happening I heard a buzzing noise not sure where it was coming from though

 

[dhmnuts]

Anyone else that can help me with this problem or share any ideas?

 

[ingtar33]

i already told you what to do. listen no one else is going to give you different suggestions. assuming the pc just shuts down it's clearly a hardware problem. if you're unwilling to open your case and figure out what's wrong there literally is nothing we can help you with past this point.