I recently purchased the hardware for a new server, I'll get into the details of that in a later post, however I did want to quickly mention a problem I had.
I tried to burn in my S5512WGM2NR motherboard, a Sandy Bridge motherboard from Tyan. It has the the C204 chipset paired with a Xeon E3-1230 and for memory a respectable (at time of writing) 16 GB of ram (4 x KVR1333D3E9S/4G 1333MHz DDR3 ECC CL9 UDIMM).
Anyhow, the MemTest from Fedora 15 locked up instantly and the official MemTest from http://www.memtest86.com/ locked up within 60 seconds or whenever you hit a key. I'm now using MemTest86+ from http://www.memtest.org/ and it works great.
Use MemTest86+ from .org not MemTest86 from .com.
note to self
This ram is weird, unbuffered ecc (udimm) is not common