Question CPU Overheating?

[Zacharoni Macaroni]

Last December I bought a pre-built pc and since I have had some problems with it. It would shut off randomly, and drop major fps, so I solved this by setting up a large fan next to it, took the front off and when it decided to drop fps, I would turn the fan on. It had problems like this on and off for 1-2 months each, it did this about 2-3 times. And a couple months ago (relatively no problems before) it shut off after what I think was a gaming session, and wouldn't turn back on altogether. The computer is one of those generic HP Pavilion desktops and I tested the psu, RAM, and battery on a different computer so I know that those are probably not the problem. It turned back on when I re-seated the RAM, but I had to go to bed so I shut it off. In the morning, it wouldn't turn back on when pressing the power button, so now if I want to turn it on i have to:
unplug psu
reseat the battery
plug psu in
then it would turn on by itself and would immediatley shut off, then boot to a screen that told me to press F1 to boot. It did this Every. Single. Time, which is a giant pain, so I just took it apart and didn't turn it on since. I want to know if it is the cpu or mb because I want to sell the cpu to help pay for new parts. When I smelt the motherboard it kind of smelt a little burnt, but only in some areas, unseating (is that even a word?) the cpu, it doesnt look burnt, and doesn't smell burnt, and unseating the mb, doesn't look burnt either. My best guess is the mb, but I wouldnt want to sell someone a broken processor so I came here instead. Sorry for the novel, specs of pc below.
Specs:
CPU: Intel core i5-2400k
GPU: Nvidia GeForce GTX 1050
PSU: 240w HP PSU
MB: Hewlett Packard 1495 (I think)
Not that it matters but 500gb hard drive.
Thank you

 

[Tolis_GR]

2 major issues come to surface. Your cpu is/was overheating. Solution is to re-apply thermal paste, clean the cpu cooler thoroughly or even buy a better cooler if you re on the intel;s stock.
Your psu is 99% a trash, category of fire-hazard and won't be able to run adequately even a gtx 1050, so you ll have to change it asap.
Your motherboard is not adequate for a K model, so if have ever overclocked your cpu, simply don't.

 

[Zacharoni Macaroni]

2 major issues come to surface. Your cpu is/was overheating. Solution is to re-apply thermal paste, clean the cpu cooler thoroughly or even buy a better cooler if you re on the intel;s stock.
Your psu is 99% a trash, category of fire-hazard and won't be able to run adequately even a gtx 1050, so you ll have to change it asap.
Your motherboard is not adequate for a K model, so if have ever overclocked your cpu, simply don't.

So do you recommend I replace those parts and reapply thermal paste, or build a new PC with the set of parts I already picked out, sell the CPU and ditch the old PC?


I also won't buy anymore prebuilts from eBay with the new info you told me so thank you.

 

[Tolis_GR]

Assuming your mobo is not hindering your performance through vrm throttling, replacing the psu and making sure you have adequate cooling for the cpu with good cooler and new thermal paste, it could give some life to your system.
My suggestion though is not to spend a single penny for such an old platform. Sell parts and save for a new build.

 

[Zacharoni Macaroni]

Assuming your mobo is not hindering your performance through vrm throttling, replacing the psu and making sure you have adequate cooling for the cpu with good cooler and new thermal paste, it could give some life to your system.
My suggestion though is not to spend a single penny for such an old platform. Sell parts and save for a new build.

Got it, thanks a ton for your help