Not sure where I posted this initially. Awhile back I reported a "heartbeat" type noise that was coming from my Hoster MTU laptop. I tried everything everyone mention and to no avail, I still have the problem. The moment that windows boots up a steady repeated tap or thump or whatever you want to call it begins. You can hear it through the ear phones and of course it is somewhat noticable when connected to my sound system.
It's not a ground problem and it does this even on battery power.
I have tried volume controls in windows and everything else I can think of. I did finally determined that the noise is coming from the Plextor PX-S88T drive. The ONLY way I can stop the sound is to go into the sytem file and disable the drive. This stops the noise. Muteing the drive doesn't stop it. Only disabling it does. Of course if I do this then you can't use the drive if someone brings a disc. It didn't do this until a few weeks ago. The only thing I could have done different is one of the windows updates. I don't use the computer for anything else but KJing. Any more thoughts? Could the drive be going bad. Haven't had it that long.
Kelly
