Hello again. Upgraded my CPU/MB/RAM a couple of days ago (See sig below). Having a really odd issue with booting the system up. If the power to the PSU is off then I turn it on and press the power button on the PC it boots fine. PC is stable (Ran prime 95 and video encoding software for 1hour solid). If I reboot it's also fine. Problem is when I shut down and everything goes off, I press the power button again and the system will not come on. There's still power to the board as the small LED's are still glowing on my graphics card. It's not until I switch my PSU off, leave it for a min then switch it on and press the power button does the system boot. Any suggestions?