I recently acquired a new case and PSU (HAF 912 and OCZ ModXStreme Pro 600W respectively). I came back from uni yesterday to move my current desktop innards to the new case (with the new PSU installed) as a temporary measure whilst waiting for Trinity to be released. After a lengthly but largely pain-free instillation, I plugged everything in, depressed the start button and... 0.2 seconds of life. Lights came on, fans span up, and then nothing. Pressing the reset and power buttons had no effect, so I restarted the PSU and tried again, with identical results. Normally these symptoms are fixed every time by simply resetting the CMOS. This didn't work. I've checked the connections and everything appears to be set up correctly. Wierd thing is, the green LED mounted on the motherboard is lit, indicating that power is getting through. It remains on even after the failed boot attempt. Short of switching the PSU to see if the new unit is a dud, what else can I try?