JBL: no jumper settings were changed
Nate: I checked BIOS and the primary slave drive was set for auto. Changing it to manual didn't do anything. BIOS was able to read my primary master © and secondary master (DVD-RW drive).
I then swapped the Molex cable from my C to my PATA slave, and vice versa and the computer still booted and loaded Windows fine. So that Molex connector isn't a dud.
I'm now going to do what I hoped I wouldn't have to do (lol). Take the entire locking HD mechanism out, which requires me to remove a 120mm fan and mess with my pretty wiring. And try out different jumper settings and swapping the IDE cable out.
I am overclocking the shit out of this thing, but I'm not sure if this can lead to unstable 5v rails? And if so would this have any effect on that one drive?