Pros: ESXi 5.0 picked up the drivers beautifully for all of the NIC's as well as all of the temp sensors on the board. DIMM TEMP SENSOR PCIE TEMP SENSOR CPU TEMP SENSOR Board nice and small, layout was convenient. Lots of SATA plugs, although I did not use these

Cons: The primary header for the cases switches and LED's are unmarked. (Use to the super easy gigabyte boards). But the manual lays them out correctly. Very Slow POST. This through me way off when troubleshooting, can take upwards of a minute to POST with correct hardware the first time. After that it seemed to POST quite quickly. VERY PICKY ABOUT RAM! I cannot stress this enough. Use ECC ******UNBUFFERED**** memory. I was uninformed that there was a difference. I thought ECC was always registered(buffered) memory, not the case. This also limits you to 16gb total as they do not sell memory of this time in 8gb sticks. We used this: KVR1333D3E9S/4GHB

Overall Review: If you buy the correct memory right off the bat, you will not run into any problems. That and make sure you use a XEON processor, as the i7 is not supported officially. Although it does work. Here were the parts for our build. ESX is currently screaming: XEON E3-1230 4x Hitatchi 7K3000 (RAID 10) TYAN S5510 Adaptec 6805E (Have to build custom iso to include drivers) Antec Three Hundred Illusion OCZ ModXStream 600W