Summary: A few details that might help others with their implementation: The board has a hardware watchdog, which is nice if your OS supports it. But when it doesn't, and you have it enabled and the jumper set to 'restart' on watchdog event, you might see your board reboot after 5 minutes of installing some OS or doing whatever task with it. If that happens to you, just disable the watchdog in BIOS until you get a driver for it.
Pros: The motherboard layout is sensible. It has a lot of fan headers on it, and the number of expansion slots is great, particularly if you have some older PCI hardware to re-use. Feature wise, this board is hard to beat, it's got everything from onboard sound to IPMI. For affordable and feature rich server boards, Supermicro is the only game in town (for better or worse.) The BIOS exposes a lot of options and is well structured. Booting from USB devices works flawlessly.
Cons: The worst aspect of this board has been that it seems to trip over itself with all the hardware that's on it. I've installed FreeNAS on it, as well as Debian Linux, and both of them complained about interrupt storms. I was able to mitigate those to a degree by disabling onboard sound and 1394 (firewire) so that FreeNAS' kernel would stop sending messages, but the interrupt rate is still outrageously high and costs a lot of CPU time. But what's the point of all this on...
Cons: 4 Different types of memory and none of them work and board will not boot. Of course the beep codes that it gives are not listed in the manual. Supermicro only lists 3. If you check out "approved memory" on Supermicro's site, the list is almost non-existent. Have tried ECC and non-ECC. 1.35 and 1.5 volt. Curial, Kingston, Micron and AMD. The one's the recommend are too small or no discontinued...
Summary: I purchased this board at retail on 8/10/13 from Newegg's auctions at a major auction site beginning with an "e". The board was factory sealed, but upon opening it, I noticed the CPU socket contained a number of bent pins. Thinking it would be a miracle if the board posted at all, I still gave it a shot, but no dice -- the board refused to post.
Pros: Solid Haswell Xeon workstation board providing all my needed features: 6 SATA connectors, ECC support, dual Intel LAN, audio, etc.
Cons: Board was received from Newegg with bent CPU socket pins preventing post.
Summary: Using this board with an Intel Xeon 1230v3 with memory Crucial Model CT2KIT102472BD160B, and a mix of SSD's and platter-drives. This motherboard works flawlessly with Gentoo. Redhat. Fedora, Ubuntu and CentOS linux. I imagine it'd work fine with any other linux as well. Currently runs Gentoo with a 3.15 kernel, zero issues. I even got Intel Vpro's Serial-over-Lan working with a serial console for OS-independent access.
Pros: Slew of onboard (and seperate-chip onboard) SATA connectors, supports ECC and non-ECC RAM, Intel Vpro, hardware watchdog, many PCI-E slots
Cons: Would have preferred additional PCI-E 8x / 16x slots, but I knew how many it had going in. Doesn't warrant docking an egg.
Summary: I have some issues with the PCI config on the board but the fact is that it is a server MB and I have no need for a GPU in a server. The 2 PCI-E 3.0 x16 (and x8 in an x16 slot) are sufficient if I change my mind and also work with Gen3 hardware RAID Controllers. When compared directly with the other server boards available with socket 1150, this one wins.
Pros: 3 displays and 4 ways to connect them. Good NIC controllers. ECC.
Cons: No PCI-E 2.0 slots, but none were needed. 3 PCI-E x1 slots is too many and PCI 32Bit slots are useless in todays market.
Summary: No Crashes with mainstream programs or Linux using Windows 8, I did demo another APPE color RIP that Ran under Windows instead of Caldera Linux but it would lock up several times a day - I ascribe that to the buggy software or running it under Windows 8 instead of 7 versus the no crash Caldera.
Pros: Handles ECC Parity Memory Dual 10 GIG Ethernet capable in Windows - though I'm currently limited by 1 Gigabit network switch and everything else being 1 Gigabit. I set up with a Dual boot where selection is made on Windows startup where I select Windows, or Caldera Linux a high end Color Rip to drive a 60 inch high end Color printer selling for almost as much as our car when new.
Cons: Used a separate Intel Gigabit network Card for Caldera as Linux drivers not yet compiled for the onboard dual 10 Gigabit network card. Only 1 year Warranty -though have not needed yet, I prefer to buy 5 year to lifetime warranted components. Did not use the onboard Video as again drivers were only good to 1280x1024 for Caldera Linux but instead used a separate NVidea video that was supporting dual monitors with stock Caldera Linux.to 1980 x 1024 per monitor
Summary: I haven't got around to testing IPMI, the TPM functionality, or the two non-Intel SATA ports. I use ZFS to raid the six Intel SATA ports, so I haven't tested the hardware RAID (I'd be stupid to, really, since ZFS doesn't need it). It's a server, so I haven't tested audio or X on the built-in video, but I don't see why it wouldn't work. Don't buy this if you just want ECC for ZFS. The whole "ZFS needs ECC" thing is a myth.
Pros: It's fast. It has a ton of good features for small to medium servers. ECC memory support. Sturdy. Not as sturdy as my Supermicro 386 board (that thing was made of stone or something) but stiffer than the average board. ZFS cares not for the RAID issues people have been complaining about in the other reviews. Hardware RAID is for inferior filesystems (grin). FreeBSD supports it no problems (but see other thoughts).
Cons: It has a header for firewire, but Supermicro doesn't sell the plug for it and I can't find anyone who does. Not really a con since I don't use it myself, but if I wanted to I'd be stuck buying an add-on card. This thing uses more mounting holes than a regular ATX. Make sure you have enough standoffs for your case. Again, not really a con, just something to bear in mind.