Pros: Works as expected - once you have the right RAM. Pretty good value for the money. I built this as a little rack server, with SSD for portability in a portal rack. Added http://www.newegg.com/Product/Product.aspx?Item=N82E16819117288 and I'm seeing very good performance.
Cons: Doesn't say it needs registered DIMM. Got this and it worked:
Summary: ASUS motherboards are great in desktops, but they evidently can't make a server motherboard.
Pros: Nice, compact package that would have been good as an Untangle appliance.
Cons: Would not perform POST. Long, short short beep code that indicates and electrical or memory failure on both the first one we purchased and the replacement Newegg sent in the RMA. I've tried three different brands of ECC registered, non-buffered memory, including Kingston, which is on the 90s-era "approved vendors" list.
Summary: We've stayed away from ASUCS for a while and that was a test shot. The good news is that didn't happen a week AFTER the deployment. Test it well folks. Not meant for production environment where your reputation is at stake.
Pros: Nice and simple layout, small factor, lite.
Cons: After two days of tests, on the day of an installation the motherboard fails to post with four (4) short beeps. ASUS Tech support provided basic suggestions like clearing CMOS, unplugging everything but essentials and then quickly recommended returning to NEWEGG (not an option at this point) or requesting RMA.
Summary: ASUS support offered to regular mail me 5 bios chips for free.. I needed 5 so I convinced them since I had 5 chips to overnight them for free and it really didn't take much arm twisting she just had to talk to her boss.
Pros: I have 15 of these running VOIP and have never had a moment of issue with these running Linux. (Suse, RHEL, Ubuntu)
Cons: If you fail 2 post with these I would almost guarantee it is a BIOS version issue.. I had an office I was setting up with TS100's (same motherboard but 4U case, newegg was out of the RS100's) and the BIOS's where older versions and all servers failed to POST because the CPU was much newer than the BIOS.
Pros: I was hesitating to buy this barebone after reading the reviews. This server is very silent and is installed in a tripp-lite 12U rack. I am using Xeon 1230 V2 on this motherboard and is pretty much plug and play without any BIOS updates.