Any clue if a 533 FSB U7700 would work in a D630 despite saying only 667 and 800 FSB support?

I'm trying to find as many ways as possible to make my new D630 run cooler and longer on the battery and I was wondering if a Socket P U7700 with a 533mhz FSB would work in a Latitude D630 despite the D630 only having official support for 667 and 800mhz FSB CPU's.

The laptop has a T7500 in it and as no gaming will be done on the laptop I figure that I might as well get the coolest running lowest power CPU I can get for it even if the clock speed is way lower.

If the U7700 won't work does anyone know what the best CPU would be for cooler running and longer battery life?

I already intend to run the latop with a single 2gb module ( which it has already ) instead of the 2x 1gb I got it with and I'm ordering the 60gb Mushkin Callisto SSD ( 285/275 read/write : ) and of course I plan to load up RMClock and take the CPU as low as it will go and if anything I can lock the CPU multi down on the T7500 and run it at the min voltage if that'll be as good as I can get for this machine.

 

I actually don't think it'll work. If you look at some notebooks that shipped with the U7700 (ie Latitude D430), you'll notice that they typically come with a 945-Series chipset or in other cases (ie Latitude XT) something wierd like the Radeon X1250 (or whatever it's called) suggesting that the 965-Series can't handle ULV chips.

You could try to see if something like an SU9300 or SU9400 (plenty of PGA mods available) will work, but I think it's kind of a tossup. I'd say your best bet is simply to use a 45nm chip like the T8100 or T8300 and undervolt the upper multipliers - since you can't really undervolt the lower multipliers, the idle power shouldn't be much more than that of the 45nm SU or SL chips (from personal experience I can tell you that an SU9300 pulls about the same idle power as a P8400).

I'd like to hear if the SU9300/9400 work if you try it though