Blue screen/freeze/no response system, cannot resolve issue

Hello!

I am here out of sheer frustration and I do not know what else to do.

I built my computer a while ago (couple of years? Do not know exact time) with direction from someone who has done so many times in the past. I built it up and had no issues.

A while goes by, and I had an issue where the computer would just freeze and a buzzing would be emitted from the speakers until I forced it off and restarted. Then, all would be fine. Eventually it got annoying and could not be resolved. Same friend said I should change some components. So, I did. Changed Motherboard and PSU. Also, added an SSD for my OS while keeping my old HDD for bulk storage. Everything was fine for the longest time.

Come a few months ago, and I have new issue. Blue screen with Memory_Management. Ran some tests as my friend said and he said the ram was bad. Purchased brand new, Corsair Vengeance ram and installed. Fixed the issue.

Then comes last week... I was doing the same thing I do every day on my computer; youtube, video games, whatever. I am very careful about the websites I visit. All of a sudden, I get a blue screen out of nowhere for System_Service_Exception. Same thing I always do, restart and figured it would fix the issue. No. Not this time. This time, I restart and it immediately blue screens AGAIN after putting password in. So I go into safe mode now. Figured perhaps I had a virus. Tried checking antivirus and immediately when I started scanning it said Memory_Management. Okay, I’ve had that one before so I figure ram. I try one more time with a malware program, instead this time I get Cache_Manager. Next day, I figure I can try ram and if it doesn’t work, I can return it. I purchased two sticks of ram and installed them.

Turned on computer and the DRAM_led light stayed solid red. Could not get it to start, figured the timing values were so far off, it did not allow for a boot, pressed MemOK! Button and it booted. Went to a bios screen that said “overclocking failed, memok successful start go to f1 to check settings” or something. Went in, and set the timing, changed the voltage on DRAM to 1.5v (it had it set at 1.6). It booted. Finally! It’s fixed!

No.

Yesterday, when trying to boot it, the DRAM_led came back on. MemOK!, booted, changed volts to 1.5, left everything else alone. Booted up, this time, it did a chkdsk. It did find a few things corrupt or misnamed, and fixed them. So I figured that was the end of it, just some corrupt files. But, I was wrong. Again.

So now, every single day I am getting a mixture of either the original freeze/buzz combo, blue screen, or a freeze of everything except for my mouse. It is totally random though. Yesterday, I had no freezes or crashes whatsoever. Today, I crashed five times. All while doing the same process on my computer.

So, that is where I am hoping someone can give me some answers. I am about ready to go out and buy a new computer, but I know that is not the financially logical thing to do.

PC hardware:
[First few somewhat irrelevant, but I am going to give everything just in case]
Fractal Design Define R5 case
Corsair K70 keyboard
Razr Death Adder mouse
ASUS M5A99X EVO R2.0 board use the usb flashback port put the newest bios file on the mb to rule out a bios bug. also could be bad vrm or cpu.
msi Radeon HD 7790 gfx card
Corsair H100i liquid cooling system
AMD FX 6300 cpu try turning off cpu cache and cores see if the rig is stable
Linksys AE6000 wireless adapater
WD Green Desktop HDD 500gb use hd tune and wd test see if the drive is fine.
Samsung 840 Pro SSD 128gb
Corsair CX750M PSU not a good unit use hardware info 64 bit set it to logging and sensor see if the 12v rail is holding.
Previous to last week: Corsair Vengeance DDR3 2x8gb ram
Currently: PNY DDR3 2x8gb ram
Windows 7 Home Premium 64 bit
3x ASUS monitors

Sorry for the long wall of text, but I want to cover all of my bases to attempt to get some answers and quickly as possible! Thank you in advance.