My 2400XP sits idle at around 36 degrees and goes to 50 when really going
for it.Check ur heatsink is actually mounted correctly on the die of the
chip.This is best done when the motherboard is taken out of the case.Also
use compound like `Arctic Silver` to get a good contact between the
two.Clean both the bottom of the heatsink and the die of the chip with some
good cleaning agent to get rid of all excess deposits before applying new
compound.