Greg 'groggy' Lehey wrote: >I've recently acquired an AMD64 box (dual Opteron 242, SiS Master at -FAR >motherboard I find it very unstable running with 8 >GB memory, though 4 GB are not a problem. > I installed 5.4 beta 1 amd64 on a 8 GB Tyan Thunder K8W with two 244 CPUs. It's been looping on buildworld for about 60 hours, no problems.