Originally Posted by bbond007
Caps cause that too?
Yes - any "warming up" issue is most likely a "leaked capacitor" issue. Just replace all electrolytic caps with ceramic caps - they last forever, and they're very affordable these days, even in high capacities.
Power supply: Many people believe that the power supply is "good" because it's new or has a high rating. However, the newer the PSU is, the more likely it is that it's a "cost-reduced-to-the-max" model with the cheapest Chinese components. The only way to find out if "good" power comes from it is to measure the ripple content of the +5V rail. This can only be done with an oscilloscope.