Hi. Had a buggy raidbox so when I had some downtime I phased in an Dell PE 2850 using the amd64-port and two qlogic 2300-hba's. No problem getting the server up but after some minutes after doing the background-fsck it simply rebooted. I had an i386-ditto which I then phased in instead which works (after almost two hours :-). Is the isp-driver not yet fully 4 GB-compliant? regards Claus