Anyone with a good idea about this problem? MegaRAID SCSI 320-1, BIOS: G119, F/W: 1L37. I put the controller into an ordinary MSI socket A motherbord with an AMD Athlon 2000+, 32-bit PCI. Config and init works fine, but when I boot SuSE SLES9 from installation CD, the controller reports h/w error and one command in queue when I look at the trace window (ALT+4). I also tried with acpi=off, same problem. Then I moved the controller to a Arima HDAMA board with 2 x Opteron 246 and 4GB memory. I tried 32-bit PCI, PCI-64 and PCI-X 100 and 133MHz. There I tried to boot both 64 and 32-bit SuSE SLES9, the SLES "Welcome screen" appears, but it never comes to the install/boot/rescue selection that is the first screen. I also tried SuSE 9.3 Pro in both 64/32-bit versions, with that I came to the selection screen, choose "Install" and the kernel loaded. After that the system stops with a blinking cursor in the upper left corner. Same problem with acpi=off. Anders