PC problems

So recently I moved my computer into a new case. The old case was dirty and pretty much broken. A friend of mine that was helping me with it turned out to not know as much as I hoped he did to help me move everything over. When moving it over we were talking about parts upgrades and if i wanted any. My graphics card was a 650 ti... We decided to go ahead and upgrade which lead me to come home with a geforce gtx 1050 ti. Problem is when my computer turns on after let's say 10-15 seconds it'll shut off. I was informed maybe it was a power supply issue and that mine maybe old which is possible. So I went to Best buy and bought a corsair rm 850x.Hoping this would fix my issue because I was desperate it didn't.
So now I go to turn on my computer and it just shuts off. I have unplugged and replugged checking the power of everything and nothing same thing. Something else that happened is that trying to fix this on my own I some how broke my CPU cooling fan.. so now I'm just trying to get the damn thing to turn on and then I'll go buy another cpu cooler. If it isn't obvious I'm not amazing with computers just desperate for help.

 

Without a CPU fan, it only take a few seconds (or less) for a CPU to get to hot and shut down the computer. If it didn't do this, it could start a fire pretty quickly.

Once you get your new CPU fan/cooler, take the computer back down to "bare bones" on a table. This means nothing but motherboard (on a non-conductive surface), CPU (w/heatsink and fan), RAM (memory), PSU (power supply unit), video, keyboard and mouse. Now see if it will boot into the BIOS. If not, try different PSU and/or RAM. Once you do get into the BIOS, reset the BIOS to factory default.

Now try running an Operating System (small Linux variant) from a bootable USB flash drive. Exercise it some (surf the web) and then leave it running overnight. If it's still where you left it the night before, power down, hook up your drive with Windows on it and try the same, (exercise it, web, games, whatever), and leave it running overnight. If it's fine the next morning, power down and start reassembling everything back in the case. As you continue beyond the bare bones minimum though, only add one or two pieces of hardware at a time and then test to make sure what was added isn't causing problems. You get the idea ...

Let us know how you make out ...