Hi, should I worry about: cpu0: NMI: system interrupts: 10000000<VME=0,SBUS=0,M> memory error: EFSR: 8911<CE,DW=1,SYNDROME=89> MBus transaction: a7ffdd50<VAH=0,TYPE=5,SIZE=5,C,LOCK,VA=ff,MID=a> address: 0x02d469d8 module location: J0201 Or ECC can handle this well ? Thanks, -- Rui Paulo <rpaulo@netbsd-pt.org>