I managed to get into bios but there's no XMP profile to load. Everything is on auto except the ram voltage which is set to 1.650V.

I'm in the asrock bios btw

http://puu.sh/65KuR.png
http://puu.sh/65Kw8.png

http://puu.sh/65j33.png
as

WRONG ONE

http://puu.sh/65i19.png

Again, can't grab windows for some reason

Yeah, it's kind of messy considering the only thing I wanted to upgrade was the video card and the psu before things got out of hand. I'll do that.

Nope, prebuilt. I still don't know about those ram timers, though, considering I can't find the timings for the 2GB stick I have installed (there's a 4GB stick that came with the machine and a 2GB stick that I later installed, from different manufacturers).

Tested the RAM as well with memtest (forgot to mention that in OP). Again, as usual, nothing.

You're linking the full page, not the actual images

edit: ninja'd

I don't have them, I did it a while ago after I blanked the HDD (hence why I can't use the free version anymore)

edit: apparently I can now, I'll re-test it and get you those screens

http://puu.sh/6532w.png - Speedtest (puush wouldn't work for the screencap so I had to grab the whole desktop, sorry)

SMART data is coming up fine. Doing error test now.

http://puu.sh/657FG.png - Error test. Again, everything checks out

That's the one I used. Everything checked out.

http://puu.sh/651iv.png

I checked the CAS Latency of the RAM I purchased afterwards to upgrade my system (http://www.newegg.com/Product/Product.aspx?Item=N82E16820239317&Tpk=KVR16N11%2f2&IsVirtualParent=1) and it only lists the CAS as 11. Don't really know what to make of that.

Also to note is that every time I did something to this computer (changed the OS, changed the OS back, blanked the HDD, replaced the motherboard, and replaced the PSU) my computer's performance degraded.

It's only a year old too.

Yeah, that's the tut i used.

Yeah, I checked that and the BIOS option wasn't in the startup menu. I can't think of a reason it would be like that though, considering I've never messed with it before.

I tried to do that some time ago but I couldn't access my BIOS through Win8.

Hey tftv,

So I've been having some problems with my computer for a while now. Back in April, I installed a graphics card and a new PSU on my system. Ever since then, I've been having stuttering problems and slow load times for everything on my computer. Videos are choppy as well. I thought it was a graphics card problem (considering it was ebay-bought) but then I started having slow loading times on stuff like windows explorer, which led me to believe it was an HDD problem. So I blanked my HDD, and that didn't fix it. So I did extensive testing on my graphics card, my mobo, my CPU, and my HDD. Everything came up fine, leading me to believe it was the motherboard--so about two months ago I replaced the mobo with a new one. Still had problems. That only left the PSU, which I just replaced today and, surprise, I'm still having problems.

I don't know what to do anymore and I'm done with playing the guessing game of "which component on my computer is the shitty one?"

Anyone have any ideas?