Well I have a feeling this will be an I told you so from Sam since my ASUS mobo is about a year old, but here it goes.
About a week ago I got a BSOD in Win 7.
Specs:
C2Q Q6600
ASUS P5N-D Patriot 2x2 DDR2 RAM WD 1 TB Black(OS/Apps/Media) + 2 Other Drives for storage.
Corsair 520HX PSU
Arctic Cooling Freezer 7 Pro
EVGA 9800 GTX+(At the time, ran the card fine after BSOD, switched to Sapphire 4890, no problems since)
The BSOD error was Bad_Pool_Caller(i believe) and seems to be a 1 off error. None the less I immediately noticed slower boot times in the post screens. Normally the post screens flew by where I barley got a chance to read them, not any more. Another thing I noticed was typically the fans in the case were blowing like a hurricane at start up, but now they run as it the system was at idle even during boot up. And as of tonight it now sounds like the fans are blowing even quieter, and even sound like they slow down even slower then the slow speed i already noticed since the bsod, for a few seconds at a time for no real reason.
I cleared CMOS to see if that helped, but no such luck. BIOS is up to date and has been for some time. I ran memtest86 and no problems with the RAM, so is it best to chalk this up as the typical ASUS failure?
The only fans that dont seem affected are the AC7 and the GPU fan.
It's not necessarily an I told you so from the Asus perspective, it's an I told you so all round, you have a 750i board, which will be on its way out by now no matter who the manufacturer was. However, the fact that the fan control is skewed is no fault of the chipset, that's an internal electrical failure, which is exactly the sort of problem Asus boards fall foul of - for instance with my A8N-SLI SE, one of the several problems that occurred was that the USB power voltage was getting lower and lower, was about 3V by the end of it, not enough to power any USB based peripheral other than perhaps an LED...
You can try and faultfind the slow BIOS by checking RAM sticks, RAM slots, changing HDDs, changing S-ATA cables, graphics card and so on, and check all the fans in your case just in case one of them has a bearing fault that's causing the slow speed.
