Well i really had some problems with the maximus formula, but it is in general a great board.
At the beginning i installed everything, and when i power on, it opened for 1-2 seconds and then shut down. I pressed everything so to assure that everything is in place and it started sometime
The biggest problem is the following :
After overclocking the quad 6600 to 3.0 - 3.2 for the first boot it seems to run stable, no crases at all, and everything seems fine. After shutting it down and make letting it for a night off, if i try to power it on, i have the same problem. Power of, graphics fan turn on and then shuts down. The only thing i could do it reset the bios, and the turned on. Well no i know what it might be the not screwing the GPU (8800 GTS G92, really big and heavy), so maybe this is solved, but again if i let the pc on, there is no problem at all !!! (So what now )
Memory seems fine as i exchanged it.
But yesterday i had a huge crach. After the windows loading on screen i always got a fast blue crash screen and it restarted. I also put a windows cd and it told me it can not load Windows Xp -error 7 Ntkrnlmp.exe. So i couldn't do anything !!!!
Luckily i had a second hard drive with windows and i booted from there and made a scan disc which showed me the bad sectors on the first hard drive !
I don't really know if the hard drive got bad sectors from OC, or by moving the tower, or from the repeaded shut downs...