Strange PC Issues (NO SOLUTION SO FAR!)

Edit_Hax

Reputable
Feb 10, 2015
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4,630
Hey all,
So, recently I purchased a Samsung EVO 850 250 GB SSD for my PC. I fit it in, transferred my programs and OS from my old HDD, and wiped my HDD. Everything was great. Then, I decided that I would enable AHCI (Or at least, I think it's AHCI. I can't check now.). So, like an idiot. I restart my PC (WITHOUT CHANGING ANYTHING). I hear beeping noises. I go ahead and open her up, and clean out some of the parts. I start it up no problem, and then hit BIOS options. There are 3 options relating to SATA and whatnot somehow (as I said, I don't know what they were). All I know is that they were all set on IDE, and that was not good. Not sure. Samsung juts said that AHCI (or at least I think the setting was called ACHI). So, I change all of them to AHCI.
I restart my PC and it's just constant beeping. It's like 50 micro, high pitched beeps, then 2 seconds of silence, and repeat. I've tested every component in my PC and it just keeps doing that. It won't display anything on the monitors. I've swapped out GPUs, tried different expansion slots, tested every RAM module, everything. I'm convinced it's related to my change in BIOS (which I did without any prior anything within Windows.) WHAT DO I DO?! If you need more information, go ahead and ask below.
Please guys, my rig won't run! D:

EDIT: The motherboard is the Gigabyte GA-P55A-UD4P
EDIT:
To summarize what I've managed to conclude from tips that were given to me as of 8.21.15 -
GPU is fine
RAM is fine
CMOS is wiped, shouldn't affect anything
Power is fine
CPU cooler runs fine (haven't investigated the CPU fully because I own no thermal paste)
SSD & HDD aren't creating the issue

Nothing I've found online or elsewhere can answer my question. Is my PC just dead? I really have no idea what's happening and it doesn't seem like anyone else has a clue either.

Please check out my other forum: http://www.tomshardware.com/answers/id-2773453/unidentifiable-issues-bios-beeping.html#16505079

EDIT: My PC can't be fixed. Sorry. It's just "broken" and for whatever reason no "experts" can figure it out. Time to go PC part picking!
 


Yeah but instead of a long beeeeeeeeeeeeeeeeeeeep, it's like beepbeepbeepbeepbeepbeepbeep *pause*, beepbeepbeepbeepbeepbeep.
Not sure if that makes sense ^_^
The red lights are the same though. I think those are the CPU indicator lights.