[jan-jaap]

A 70GB disk taking 5 hours to exercise equals 4MB/s. That's slow. You probably didn't do a sequential write-only pass, but a write-compare or butterfly test. At 30MB/s it should be done in 40 minutes.

You might be right, the 'ide' doesn't do VPRO graphics, but it might do the IMPACT graphics. If it starts to throw triangles on the screen in psychedelic colors it does. In general it's a better idea to run diagnostics involving graphics from the serial console rather than the monitor screen, otherwise you loose most of the test output.