Smash, _Korruption_
Thanks guys, I realised the errors of my plans soon after my first post and doing some further reading. I guess I was latching onto a possible cause of the problem other than my own inept bungling! :)
Luckily I have some older, more suitable PSUs for the job and will be...
I am also having problems with my Antec Neo HE430, though mine is combined with a Asus A7N8X-VM/400 mobo.
The P150 case with HE430 was purchased to move across a working system (from a Coolermaster case with Tagan 480 PSU) and make way for higher spec system.
Motherboard, CPU, memory, hard...