Computer keeps freezing

My computer keeps freezing at random times. This freeze lasts until I reboot my computer. I've reinstalled all my drivers, except my motherboard or BIOS as I couldn't find them (here). This freezing has been happening for a good month and a half. Actually, ever since I've installed multiple new parts. The new parts I installed were a new FX-6300, motherboard, 8GB DRR3 RAM. My graphics card is a old HD 4000 series. I had a 600w power supply, but it blew so now I'm using a 450w power supply until I have the money to order a new one.

I was thinking it was the power supply causing the freezes because it might not have enough power to handle my computer. People also have suggested it being the RAM or the Hard Drive. Others have suggested it being Windows or the drivers. I don't think it's the drivers (I wish it was). I am going to reinstall Windows and hopefully that will fix it. I can't do that right now though because I do not have a USB or disc to do so. I'm completely lost on this.

When I say my computer 'randomly' freezes though, I want to emphasize the word randomly. Sometimes I'll have a video game open, Adobe Illustrator open, a Twitch stream running, with VLC media player playing music and a couple browser tabs open, while talking in RaidCall and it'll be fine for hours on end. Then the next time it freezes, I'll reboot and right after I hit my desktop, it'll freeze a couple seconds after that. Sometimes it'll do this for 5 times under a hour, maybe even half hour. Sometimes it will freeze will all kinds of programs open and sometimes it'll freeze with merely YouTube open or as I said before, sometimes it'll freeze without anything open right after I've booted my computer up.

I've also noticed, I'll be able to move my mouse around prior 10 seconds before it freezes. Though, in this ten seconds of mouse moving, I am not able to click, hover or anything with the mouse. Only able to move it.

I'm completely lost on what this could be. Please, someone help me.

Here is my specs:
Motherboard - ASRock 970 Pro3 R2.0
Processor - AMD FX 6300 Six-core 3.5GHz
RAM - Corsair Vengeance DDR3 2x4 | 8GB
GPU - ATI Radeon HD 4650
OS - Windows 7 Pro x64

It could be that your power supply isn't providing enough power when your graphics card is working hard.

Are all of your drivers up to date?

Mellon Head said:

It could be that your power supply isn't providing enough power when your graphics card is working hard.

Are all of your drivers up to date?

Sorry for the late reply, yes I just updated them.

If you look at my first post I rewrote it to be way more descriptive.

Have you tested the RAM to make sure that there are no errors with it? If not, try Memtest86+, it's a good memory test and it's free.

Memtest86+ - Advanced Memory Diagnostic Tool

Start it up and let it run for several passes. I run it all night if I think there's a problem with my RAM.