may seem like a dumb question, as intel are fools about overclocking, but does anyone know the multiplier situation with the dothan mobile chips? (im considering an XPS2)
I believe they're unlocked downward for underclocking at lower voltages (power saving modes).
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Overclocking a laptop is a bad idea. They are specifically designed to run at a certain temperature and load due to their compactness. If you're getting a dothan for the desktop (can have it's applications), then go right ahead, but overclocking there again is pretty pointless. You'd generally want a dothan for low power and low noise systems like maybe an HTPC. Overclocking would need a bigger louder fan. Why not just go A64 or P4 then?
The last time I checked, someone oc'd a dothan to 2804 Mhz by using a 165 FSB and a multiplier of 17. see here:
<A HREF="http://www.oclabs.it/pfocus.php?docid=1137" target="_new">http://www.oclabs.it/pfocus.php?docid=1137</A>
Still, I can only think of small screaming children and old grandparents everytime I hear "Dude, you're getting a Dell."
as to overclocking a laptop for bench performance AND portabiulity, if anything can do it its dothan. I was planning to mess around until i could get a 2.13 ghz dothan to run at 2.2ghz with 550 mhz ddr2, (upp from 533) so i dont see any potential cooling issues as it runs very quiet and cool to start with. as for using an athlon or p4, if you can find a notebook with one or the other AND a Geforce Go 6800 ultra, let me know.