I wish I had the same experience as you.
Its just impossible to ask my sysadmin to install another one after the
hardware failures on the first 3 boards.
I sympathize with your reluctance to tell him to install another
one, but I also wonder if he might be the problem ? Have you
watched over his shoulder while he works to see if he really
knows what he is doing ? I have seen a few sysadmins that are
geniuses when it comes to arranging computers, cables, switches,
routers, etc to set up and maintain a complicated network - yet
should be shot before they are allowed to touch anything /inside/
a computer.
And what about the vendor you bought the boards from ? Do you
trust them enough to send you new boards instead of something
that was returned, in perhaps less than pristine condition, by
someone else ?
If you buy your processors and mobos from the same vendor, do you
ask them to test the combo before shipping ?
Similarly, I built my business on 7 homebuilt servers using the
cheapest ECS consumer AMD boards, and they ran like a top for 2 years
under *heavy* load. Then I read that people were returning some absurd
number of the same model because of failure - oh well, didnt happen to
me!
I've also had good success with ECS boards, albeit for desktops
and not servers.
I have also watched a lot of DIY-ers building systems and the
number that just don't have a clue is appalling - and their cpu
and mobo failure rates are correspondingly high. So many people
can't fathom that static electricity kills. You tell them that
standing on a carpet in 25% relative humidity is risky enough
when you *do* use elementary precautions like wearing a wrist
strap and then they go ahead and handle parts *without* a wrist
strap.