Diagnosing post-PSU failure(s)

[Onyx187]

Ok, my PC has been through a lot recently;
My 660 started to artifact, already made a thread and temporarily replaced it with a 760.
the other night my OCZ 500w PSU set fire to my optical drive. (big image below)

Spoiler

Temporarily replaced with a Enermax Galaxy 800w

Currently trying to figure out any other damage caused by the OCZ PSU, currently I'm experiencing a lot of stuttering in both audio and some video (was playing Dark Souls 2 earlier and I had some pretty irritating stutter going on).
Whenever streaming/downloading from the internet, experiencing a lot of audio stuttering. Unsure exactly how that's happening since it's not consistent. Any interaction with Steam consistently causes audio/video stutter from online sources.
Also, occasional shut-downs are occuring, no BSOD just turns off. This started occurring after installing the 760, with both PSUs.


Asus RoG maximus Gene III
i3 530 @2.97GHz (stock)
Antec Kuhler h2o 620
G.Skill RipjawsX 8Gb 1600MHz
GTX 760
Enermax Galaxy 800w
Samsung 830 SSD 128Gb
Samsung SpinPoint F1 1TB HDD
Seagate Barracuda 7200.12 2TB
Windows 7 Home Premium x64

 

[Akagi]

Have you tried running the Windows Memory Diagnostics?

 

[Onyx187]

Have you tried running the Windows Memory Diagnostics?

Forgot about that, will sort out tomorrow somewhen