Hi all,

From my own research into the clicking noise and my very limited understanding of hdrives I have tired using hddscan and hdparm for windows os to change the APM to reduce the idle click (drive parking right?), but without success. My laptop bios has no settings other than hard drive password settings, hdparm gives me the following error in when using "hdparm -B 255 /dev/hda", error: HDIO_DRIVE_CMD failed: Function not implemented". Great!! I can only see spin up or spin down in HDDScan so if someone could tell me how to permanently adjust the APM via this app then that would be appricated.

The problem is it never used to idle click at all and now it does whether OS loaded or not (even while sitting at the bios menu!?

The only thing I have tried via OS directly is unchecking the "let bios handle transfer" in device manager/IDE ATA/ATAPI controllers.

Can't seem to find any later firmware for the drive and it looks like it not SMART compt and bios is no help.

My system is Acer Aspire 9300, running Vista (32) premium.

Sorry if this is not the correct section to post this question.