I've got an XP2400 running at it's standard internal clock speed, but 200MHz fsb. This is stable and the temperature goes up to about 53 degrees under load (default voltage). At the moment I am not going to try and push it any further since I don't really need the extra speed yet. I will probably try to up it at a later date. Would you say there is any headroom with this cooler?
I can't really answer that. Don't know what mobo you are using, whether you're reading from the in-die sensor or a socket mounted thermister. More importantly, I don't know how your temps react to change with overclocking. For example, when I run my XP1700 at 1.5 ghz it maxes out at about 35 degrees. The max gradually increases to about 45 degrees as I overclock to 2.1 Ghz and my system is stable. Clearly I had plenty of headroom there. However, if I overclock a little higher, to 2.25 Ghz, I need to add a lot more voltage (from 1.775 volt to 2.15 volts). Running Toast (great for testing load temps) I observed my temperatures rise past 52 degrees and they didn't appear to be stopping. Not much headroom above 2.1 Ghz for me.
My readings are from a socket sensor (though I've never been able to find it) and I suspect the real core temps are quite a bit higher. How much I don't know.
The only review, <A HREF="http://www.digit-life.com/articles2/cooling-systems/socketa-coolers-massive-shootout-feb2k3-part1.html" target="_new">this one at Digit-Life.com</A>, that I read in which these newer GlacialTech coolers were compared placed the 2500 a little better than the 2410 PRO so I don't know how much "headroom" you have. I would say some but probably not a lot.
By the way, what do you think about the clip on the 2410 PRO? Did you find it excessively tight?
<b>99% is great, unless you are talking about system stability</b>