Or "a system you see at the repair counter too often." The PSU was lightwieght then and after a few years is suspect. Try adding at least 200W to the new one. After that you have a known HDD seen with errors too many times.
Go get a Speccy report and the passing criteria is NO ERRORS in the HDD SMART VALUES. If you want folk to check for you, read https://www.piriform.com/docs/speccy/using-speccy/publishing-a-speccy-profile-to-the-web
Finally you see this machine and if the usual PSU and HDD don't fix it, it's usually an old motherboard. You replace those.
Finally the Asus R7 260 was known to cause lockups as well. Try the usual cleaning and fresh heatsink compound you read about on the web.
Here is a list of components in my computer:
Motherboard: Asus 970 Pro Gaming/Aura ATX w/AMD Chipset & Socket AM3+
Graphics Card: Asus R7 260x
RAM: G.SKILL Ripjaws X Series 8GB 240-Pin DDR3 SDRAM DDR3 1333
Processor: AMD CPU FX-8350 Black Edition 4.0 GHz (4.2 GHz Turbo) Socket AM3+ FD8350FRHKHBX
Hard Drive is just a Seagate 1TB
Power supply: Allied 300w
When I play games and/or have multiple internet tabs up, my computer will completely freeze up randomly. Another problem I have is when I open the new recording software that I downloaded, OBS and Raptr, they won't even open. It freezes up and with the other components that I have, I don't think the computer should have any problem with running any software at all. I bought all of the parts besides the power supply, I used one I previously had. It worked so I thought it would be ok. Any suggestions on what wattage I need, maybe post a power supply? Or what could the problem be if it's not the power supply?