That looks like a very accurate graphHP had some real trouble 2-3 years ago with laptops and small form desktops. System boards were just crapping out so much that HP was extending their 1 year warranty to 2 years (on selected models of course)
(
PedroHin Come along & ride on a Flantastic Voyage,
Thu 29 Jul 2010, 3:17,
archived)