Hi guys, I'm trying to change my psu as my old one a ocz zt series (ocz-zt750w) has a bearing gone in the fan and it sounds like it's trying to break to pieces. I bought this one a Zalman zm750-xg to replace it and my pc just won't post. It boots and everything spins, I hear my hard drives spinning up yet nothing appears on my monitor. I can't even get into the bios & after about 10 - 15 seconds it resets & tries again over and over. I thought I had just got a dud psu so I rma'd it and got a replacement in the post today and same thing happens. Power wise the new one is superior in almost every way (bar being semi-modular). I've tried disconnecting everything upto and including all the memory & just no luck. I'm frazzled by this as I've replaced parts for years and never ran into this. Am I simply missing something stupid? any advice would be appreciated.