Motherboard Boots...With Power Off?!?
A few months back, I started building a gaming rig for my brother. CM Stacker case with their 1000W power supply, an Asus Maximus Extreme board with a Quad-Core chip (6330, I think, the basic one), and a 3870x2 graphics card.
I put the stock heat sink and 1GB of the 4GBs I have for it in, powered it up and installed Vista to play with it for about a week. Everything worked fine. Then I took it apart to mod the case to accept a number of Scythe fans, a ThermalRight IFX-14 cooler, and two fan controllers. Then I ran out of time (I work for a living).
Now it's 2 months later, and I put the nearly completed rig back on my bench for testing and overclocking. When I plug the power supply into the wall, I notice that the LCD BIOS display lights up and starts going through it's paces. The power buttons start the rest of the system (fans, etc.), but it was late and I didn't have time to see if video came up... But I noticed the LCD display kept cycling through a loop with power turned OFF. I unplugged the Power Supply and will come back later to take a look at it.
Has anyone encountered this before? I can't see a mis-wired fan causing this...