fred smith wrote: > I'm considering upgrading, and am trying to choose a modern motherboard > that nevertheless fully works with Centos5/RHEL5. What role is that system going to play? I assume server because I'd put money down that in excess of 99% of CentOS installations are servers. (that number started at 95% and I kept jacking it up higher the more I thought about it..) In which case.. Supermicro has a pretty large selection of Istanbul-ready boards, you don't really mention any special requirements outside of OS compatibility so it's hard to say what board is best: http://www.supermicro.com/Istanbul/Istanbul.cfm?pg=MB Pretty much all of them should work fine with CentOS 5, of course I would avoid the on board controllers for disks, use an external controller like a 3Ware or something mainly for performance reasons. Tyan has plenty of good boards too. nate