My laptop's hard drive heats up quite badly. The regular operating range hovers around 42-44 Centigrade. It gets even worse when the screen is locked with temperatures shooting up to 50C. The casing next to the track pad gets ridiculously hot and at this point I am really worried that continuous high temperatures is a hard drive failure waiting to happen.
I've searched and fiddled with hdparm spin-down options with no success. The other related option seems to be installing this thing called laptop-mode-tools. I'm not sure if this will do the trick since it seems to be about extending battery life whereas my problem occurs even with AC power on.
What are the options I have ? Will installing Laptop Mode Tools do anything good in this case ?
I am using a SATA 7200 rpm drive. Ubuntu version: Lucid Lynx.