Just got my new box running. Only a few minor glitches so far.

1) I'm using a manual fan controller. It wasn't obvious how to disable the BIOS CPU fan error warning. You have to set the minimum fan speed alert in BIOS to Ignore.

2) The "No physical disk" BIOS error is annoying, even though there is a disk. Easy enough to troubleshoot, I just turned off the Marvel and JMB devices in BIOS since I have enough with the Intel devices. As a bonus, it boots up a lot faster now.

3) CPU temp was steady at idle around 32C. When I upgraded from factory BIOS to 1003 BIOS, it jumped to 48C. It still reports around 32C in software like Asus AISuite Monitor, so I suspect the BIOS has a glitch.

4) The diagnostic LEDs were helpful troubleshooting an error that resulted in lots of beeping my first power-up. Turns out I forgot to reattach the 6-pin cable from my GPU to the power supply after I had re-routed it.

5) As mentioned, I also had the unknown PCI controller in Device Manager. I found a thread on another forum that correctly identified it as the Intel Management Engine Interface utility that you can get from Asus in the utilities section of the download area. Sounds like you can also just disable it, too. This was my fault, I didn't bother with the CD/DVD setup that came with the box, I just grabbed the latest drivers from Asus and considered that one as unnecessary at first. Still not sure what it does.

Other than that, so far so good, but I haven't had it running long enough to do any testing or overclocking yet. Took me half a day to get the dumb cables routed nicely- hardest part of the whole job.

System: P8P67 Deluxe, i7-2600k, 8GB CMZ8GX3M2A1600C8, Lian Li PC-B25S with Scythe flex fans, EVGA GTX580, Corsair AX850, Noctua NH-C12P SE14 cooler, Crucial c300 128GB, Win 7 Pro 64.

So far I'm running stock speeds but using the XMP profile for memory at 1600 CAS8 timings. Windows mem test ran fine in basic and standard modes. It's taking forever on Enhanced tests, it stuck on 21% for a few hours but finished with no problems detected.

Otherwise, seems to be running well and is ultra quiet on medium fan settings, even quieter than my Q6600/Radeon5850 system in an Antec Solo case that (subjectively) moves less air. The new one is inaudible on low fan and the idle temp only goes up a couple degrees. On high it is clearly audible but is also moving a good amount of air.

Should have no problems with the games I play. Granted, I had no problems with my last box which is now the kids' gaming machine. Now I just need to order a 120Hz monitor.