And if you run a 105C cap at 40C you'll get ~ 85 times the datasheet lifetime. So a 2,000 hr 105C cap would last over 19 years. Watch the ripple current of course !
Interesting point there. One decoupling cap on a mobo of mine near the graphics card slot was visibly bulged whereas others weren't. I imagine it was hot air being blown onto it by the GPU fan.
Graham