My computer randomly freezes but everything seems fine...

Hi !
I built a Gaming PC a year ago and I made it cheap, but it turned out great as I was able to play recent games with great graphics !

Set up:
HDD-Seagate Barracuda 1tb
PSU-cheap *** thing of 500w
CPU- i5-7400 3ghz
GPU-GTX 1050-ti
Optical Drive
MOBO-MSI B250M Gaming Pro mATX LGA1151 ddr4
RAM-Patriot 8gb ddr4

So... I did this on pcpartpicker and everything is compatible and worked fine for a year.

I dont overload my computer as I only have 300gb used on 1tb and I analyse my computer monthly for viruses

But now, it freezes randomly, even though I tested CPU temp and % utilization. My HDD sometimes goes up to 100 but I'm not sure it is the problem, but I'm no pro either.

Moreover, last time it froze, I tried to reboot it and it just powered on, then off 2 seconds later reapetedly, as if it was lacking juice. One time nothing appeared on my monitor and mouse and keyboard seemed unplugged, even though the 3 of them were plugged, I managed to make them work by unplugging, and rebooting.
But tonight, I made a final test running a full pc analyse for viruses and found nothing. After I tried playing a game and it froze again. I had to reboot it and it would not even get to homepage of windows 10. It would froze on the screen where you can press "del" or "f11" for BIOS or boot menu, or something like that...

What piece do I need to change? Whats the problem?

Thanks !

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Clarification Request
How much you paid for that, if in USA?
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My psu is like a coolmax 500W

And I don't know of i'll be able to run your thing, my PC won't even open

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That's one of those poor to bad PSUs.

Let's see the label.

A triple rail with mediocre 17 to a low of 12 Amperes means it could be a source of trouble. Replace it with some single rail of same or more Watts to remove it as a possible source of trouble.

To see if you can get the PC up on its feet you can remove the 1050 GPU to us onboard video to run the Web Speccy report.

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What a junker

I've not seen a PSU that bad since the Logisys PSU's.

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Small problem

That psu comes in 2 different flavors an I and a V model.
The op needs to come back with the model number of what they have.

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That's half

Now post the model number.
Take the side panel off and read the label.

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Testing the drive


you may also test the hard drive, here is the software to do so.

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