Originally Posted by Ty Auchter
There's a lot that goes into it... Ambient temp, your case, air flow, etc... I'd say you're fine though. Intel chips can handle up to 75C before they degrade rapidly. The general rule is keep it under 65C.
Actually, and to be more precise, the p4 550 can handle 72.8C according to Intel.
However, Zyther I still think you have pretty high temps for a system using the Blue Orb II unless your cpu is overclocked or you live in a very hot area.
What is your room temperature ? Is your cpu overclocked ?
Check this link
to get an idea about the cooler's performance. In this example the Blue Orb II is installed on an Intel P4 630.
Other things to consider. How much thermal paste did you apply ? Too much is as bad as too little. As a rule of thumb you should only a apply a BB sized drop at the center of you cpu then put the heatsink over it and DO NOT remove it anymore (if you remove it you have to do it all over again).
Don't worry the heatsink pressure (if it's properly seated) should equally spread the thermal compound over the entire cpu area.