Display Sometimes Won't Start Up, Driver Crashes When PC Bumped, Blacks Out When Playing CS:GO - Is this a GPU, PSU, or Motherboard Problem?

[Fourple]

My PC's display started being erratic today and I don't know if it's a GPU, PSU, or motherboard problem. It started out when it wouldn't show a display when I started it up. I just turned it off and on again and it would work. Next, a simple bump would cause the NVidia driver to crash and restart. And when I played CSGO yesterday, it kept blacking out. This has never happened before.

 

Now, it just refuses to start up with the rest of the system. The peripheral and fan LEDs light up and I could hear the Windows bootup sound. I'm running it on integrated graphics right now because I rely on it for work.

 

Here's a quick overview of my PC's specs:

Processor: Intel i5-3570

Motherboard: Red Fox RF-H61H2M7

GPU: ASUS EX-GTX 1050-2G

 

I'm also using an unbranded 500 watt PSU (my main suspect), which may have worn-out through the years. 

 

Which part could be faulty?

 

[Founders]

Start with the simple fixes and work your way up. It sounds like you could have a faulty or loose cable. Do you have another one you could try?

[Fourple]

12 minutes ago, Ehmc130 said:

Start with the simple fixes and work your way up. It sounds like you could have a faulty or loose cable. Do you have another one you could try?

I don't have one right now. But I'm using the same HDMI cable to connect to my motherboard's onboard graphics. It's working alright so far. 

[Founders]

Then the cable should be OK. Go to Nvidia's site and download the newest rev. of your GPU's drivers. Use display driver uninstaller to remove your old drivers, restart your computer and install your new drivers and see if that resolves the issue.