I just read in the German print magazine IT Administrator (08/2007, p. 12-13) that Vista heats-up hard disks more than XP does. Hard disks in idle mode have a five to seven degree Celsius higher temperature and hard disks in operation are seven to nine degrees warmer than under XP. The hard disk’s temperature can get ten degrees higher than the vendors’ specifications allow. This could cause hard disk failures eight times more frequent than with XP.

Nikolay K. Taschkow, senior consultant at the NT-academy, reported these results at the IIR Windows-Forum in Cologne, Germany. They ran extensive tests on laptops. The article didn’t say anything about hard disks in desktops.

I wonder how an OS can influence the temperature of a hard disk. I mean, I understand that a complex OS stresses a hard disk more. But, why is it happening even in idle mode?