Summary: I first bought this board thinking ECC ram was an option, but the server would not boot. I replaced the ram with ECC, and she fired right up. I noticed a few reviews saying DOA, maybe this was why.
Pros: Asus has drivers for Windows Server OS' Accepts the new Haswell Xeon CPUs
Summary: For all of the people having issue, whatever you buy, check the hardware approved list and don't play with the equipment while putting it together. I had been using Startech Pro power supplies for the longest time....very few issues (years without issues in a clean invironment).
Pros: Feels like the P8 series only newer. No problems with the 1240V3 Xeon processors. Plug this into a 600wt power supply, Xeon 12430V3, Kingston ECC ram, couple of 500gb Velociraptor drives - - all as per spec and be happy!
Cons: ASUS email support -poor. Use the phone support. I have gotten some really poor answers from email support. no mention of raid support with SSD drives. Intel stock fans suck as far as how they mount with the plastic push buttons.
Cons: DOA - The unit responds to power switch, but it doesn't post. No beeps nor video. However if I remove the RAM it will give me the notification that there's no RAM installed with the beep message. Processor is brand new and I have reseated it twice to make sure it was installed correctly. And yes,...
Summary: The MOBO arrived DoA. No post beeps at all with onboard speaker and my own. Vigorous trouble shooting. Fans spin up then the system restarts over and over. Tested with 3 separate power supplies, 2 different DIMMs of ram including one verified by asus to work and one that wasn't to try get 4 beeps.
Summary: I'll probably end up with a used IBM M1015 card to add some more drives to the ZFS pool.
Pros: I've had good luck with ASUS boards in the past and this one has impressed so far. Good documentation, bios is decent and easy to flash. It's running a NAS4Free server so the internal USB port is perfect to run the bootable flash stick. Combo deal from newegg with the xeon helped nudge me to this...
Cons: I had one minor issue with N4F v9.2 not playing nice with USB 3.0/XHCI. All USB ports would be disabled when trying to boot, but disabling XHCI in the bios solved the problem. v9.1 had no issue though, so it might be a FreeBSD bug. Wish it supported a few more sata ports.
Pros: Comprehensive BIOS settings, every connector and slot you could ask for and more, convenient layout for cable management, started right up the first time without tweaking or putting in temporary parts to flash the BIOS.
Cons: This is 2014, can we PLEASE agree on a case switch and light connector standard and get rid of all these fiddly un-keyed pins?
Cons: The first one I received need to get RMA. Now I'm on my second and it seems that it will also be RMA. Just once I'd like to get a motherboard from Newegg and have it post on the first try. Trying to run it with a Haswell 4130 which Asus states is a compatible CPU
Pros: Low price, excellent documentation and support CDs, very solid build. Fans don't go crazy if you don't use all of them as oppose to other server board that make other working fans spin higher. it has 4 SATA3 (6Gbps) port, and 4 USB3.
Cons: Missing thermal sensors. The enterprise monitoring software needs IIS and windows server I believe. (I did not need it anyways) The PCI-e X4 is located under the main PCI-e x16 slot potential blocking the air to the GPU if you install any sort of add on card there.