http://www.anandtech.com/guides/viewfaq.html?i=71
What is the 75GXP problem?
The GMR Head technology that gives the 75GXP its stunning performance is also its major Achilles heel. As data gets packed more densely, there is less room for error. During normal operation, drives will heat up due to the friction of the platters moving through the air. While the platter is very smooth, anything running at 7200RPM will produce heat. In addition, there will heat generated by the motors and various chips used to control the drive. As we all learned in school, heat will cause metal to expand. The platters on drives are no exception. Drive manufactures know this and have chips that account for the expansion of platters. The drive head will adjust itself accordingly to ensure it is reading and writing to the right place.
What about my data? Can I get it back?
Unfortunately if your drive has failed, the chances of getting your data back are basically nil.
In the case of the 75GXP, this does not always happen. Variables such as uneven warming of the platters can confuse the drive. Every so often, data will be recorded in one place but not where the drive was expecting. Consequently, when the drive goes back to look for the data, it is not there. A loud clicking noise, not unlike the infamous Iomega Click of Death, will come from the drive. This is due to the read head resetting itself and making another attempt to find the data.
in 80% der faelle wuerde ich sagen das ein Platinenwechsel bei der GXP75 Serie nichts hilft
mir ist vor kurzem eine GXP60 eingegangen, ich konnte aber noch Daten retten da die HDD noch ging. mittlerweile eingeschickt und ich warte auf eine Ersatzplatte auf der nie wieder wichtige Daten sein werden.
Plus in kuerze neue 40GB platten anschaffen und 24X Liteon Brenner und 20Stk CDRW fuer Dattensicherung