Hi Liyanage, As of Ubuntu, there is some bugs that need some fixes in the next update 12.10 for this issue. [URL] [URL] But I can try to suggest to do 1 step for a try to fix issue. You might need to turn off the C-State in the BIOS for the server. After booting into the BIOS, go to System Profile Settings > Set it to custom and disable to C-state. [IMAGE]   1 more thing to do is to clear the hardware logs, and check if the issue can surface. Let me know how it goes.
Hello, we recently bought a Dell poweredge R720 server. It shows error massege in the display. "cpu0000 cpu1 internal error (IERR) contact support " What could be the reason? Hardware problem. We are going to install Ubuntu 12.04 server on it.
cpu0000 cpu1 internal error (IERR) contact support -poweredge R720 server