We ran the ASUS P9D WS in the lab for over a week under all kinds of different tests conditions, and it's been a rock as far as stability is concerned.
The new tests that we have started using put extreme loads on the system for extended periods of time, and the P9D WS handled this with no problems. It stayed nice and cool, even with the stock Intel CPU cooler, so there is no need really to install higher-end coolers on a system like this.
We have used the Intel 4771 on several motherboards here in the lab, and found the test results to be on par with the others. What sets this board apart from the others is the UEFI BIOS, which is a nice improvement over the others that still use the Award BIOS. It makes simple things like booting into the BIOS, clicking optimized for performance, and clicking F10 to save and reboot, very easy to do.
The motherboard itself is very clean, and has easy to read labels for all the connection headers, which makes setup a breeze.
We found the supplied software, AI Suite 3, to work very well at adjusting the different system settings. It also gives the ability to check on system temperatures, to make sure the system is running nice and cool. This is useful at first, but after the system is setup and running, you might not ever check it again; however, it is nice to have it just in case.
Dr. Power is also very nice to have; it will alert you in the middle of a long run if your power supply starts giving you issues. If you use a power supply that is very close in rating to what your max power load would be, this might come in handy; but nowadays, installing a higher rated power supply is not uncommon, unless you are trying to save money on build costs.
ASUS offers a limited warranty period of three years through the ASUS website. At the time of writing, the price of the P9D WS was $234.45, which is a good price, compared to other workstation motherboards in this class. Check below for up to date pricing.
PRICING: You can find the ASUS P9D WS Motherboard for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link to see the very latest pricing for the best deal.
United States: The ASUS P9D WS Motherboard retails for $234.49 at Amazon.