Kernel Panic when installing 64bit on dual opteron

Hi! I have a problem with dual Opteron (244) server with 1.8Tb RAID 5 disk and 8Gb mem. It boots with the Knoppix CD as well as SuSE 9.2 Gnome 32bit live eval. But I'm trying to install the FTP version of SuSE 9.2 Pro 64bit on this computer - and I'm not getting anywhere. I have tried both the ftp DVD as well as the mini-CD. And I get the same results with both: i.e. Kernel panic. Everything is OK after boot, but when the installer loads the kernel, then I get kernel panic. I've tried all the options (safe mode, ACPI=off, manual installation etc.) but always the same problem. The DVD md5 sums at least matched to the ones reported and I get the same problem with 2 medias. Any ideas? -- HG