you should see how toasty one of the caps get on my biostar I45 when i prime 95 the 9650...i have this samsung temperature measuring instrument...it can do ear or measure the temp of the air when i put in the 'scan' mode.
when the temp goes over 80C, it just says 'Hi'

, otherwise it gives you actual digital temp...when i ran small FFT's in place, the temp for this one cap went over 80C, so it just said 'Hi'...the
PWM heatsink, just above these row of caps, was reading about 45C..this was at the base of the heatsink.