On 05/16/2014 11:23 AM, m.roth at 5-cent.us wrote: > hardware doesn't support ECC. > <snip> > Oh, right, *all* the servers here use ECC DIMMs. And you really, REALLY > don't want to go there: a) price, b) n/s is not buffered is not > registered, none of the above compatible in the same bank, and oh, yes, > dual rank is *not* compatible with single rank or quad rank... I kid you > not. I've had servers simply not boot by mixing two of those, and let's > not forget not fitting in the slot...., and c) see a). > ECC is such a horrible pain in the rear. If you don't have things like "SLA" in your casual vocabulary, pretty much any desktop board works find for Centos6. For spare/personal/backups servers, I use whatever old hardware sits in the junk room. Anything using ECC is such a pain to match up correctly that I tend to buy motherboard/RAM/CPU from a vendor as a package unit so it's warranted to work together. Registered/Unregistered, CAS timing, single/double/quad ranked, never mind voltages, and making sure your CPU supports it! For all the promises of better uptimes, I've had far more trouble with mis-matched ECC than I've ever experienced in bad non-ECC RAM. Truly, this is a sorry showing for ECC. Ben