On 11/15/2011 08:33 AM, Raffaele Belardi wrote: > I have two gentoo boxes, X has an ASUS M2NPV-VM with AMD64 3500+ CPU, Y > has a AMD64 X2 5600+ CPU. Since I need more juice on X I thought I could > swap CPUs. > > After updating X's BIOS the system with the 'new' CPU boots up to the > MythTv screen with no error but does not respond to the USB keyboard nor > > My first thought was that X (and Y) WERE compiled with '-march=native' > GCC flag and maybe the 5600+ does not execute properly the 3500+ code. > But a quick search on wikipedia shows that 5600+ has a superset of the > 3500+ so I should have problems putting the 3500+ in the Y box, not > vice-versa.
I did some more testing, the lock occurs also when booting from CD so I excluded a software problem. So I tried swapping also the PSU, still locks. I ended up swapping also the motherboards, apparently no locks (but I need a new kernel). So it looks like the combination of ASUS M2NPV-VM motherboard plus MD64 X2 5600+ CPU was causing the lock. I just don't understand why.
