7s are errors indicating a hardware problem in memory or on the bus. They can occur because there are problems with executables or with the system's hardware itself. The Linux kernel utilizes more capability from the CPU, Cache, and memory, and is prone to fault on marginal hardware. Red Hat Inc. Check the errata for updates and also the FTP site to see if a more recent version is available. If the latest images still fail, it may be due to hardware.
Common suspects are memory or CPU-cache.
Try turning off the CPU-cache in the BIOS and see if the problem goes away. Also, try swapping memory around in the motherboard slots to see whether the error is slot or memory related. When the machine boots, the X display is corrupted and unuseable. This also includes the Savage 2000. There are a couple of things you can do to get around this.