I simply mentioned the CPU type because it had been done previously by the op. I'm confident the issue has nothing to do with the CPU or kernel type. The issue appears to be with some (or all) of the mirrors under certain configurations. I was hoping someone with more yum/mirror/repo experience would be able to spot the problem if I squeaked - I'm sure it's something I can work around, but I wouldn't want it to impact others.Interesting.....I thought that i686 used instructions only available on later processors, i.e. i486 and pentium III do not have the later instruction set to accept compiled code for i686..... I'm no expert, but that is why there are i386, i686 and x86_64 type packages to cater for various processor types.pentium-III is a i686, as is pretty much everything since Pentium Pro i386 - 386 i486 - 486 i586 - pentium, pentium w/ mmx i686 - pentium pro, p-II, p-III, p4, core/core2/etc.