I installed a hard disk on my hp425t box and took this opportunity
to vacuum-clean it. Since the box is still open I wonder if anybody
in this group has tried to:

1) lubricate? the fan in the power supply. It's quite noisy now.

2) changed the on-board battery. I found it difficult and
     don't want to force it. maybe I need a special tool?

Thanks,
Lazaro