The system should take any Core 2 mobile CPU.  It will not support any of the Core i CPUs.

Hi, Thanks for the quick response...

Looking at the web and seraching for Core 2 mobile cpu im finding cpu's with socket p or 775... help...

i didnt know there was 2 types...

what would fit the xps m1730?

Ive just found this

http://ark.intel.com/Product.aspx?id=40480

would this processor work?

cheers

All of the Q processors are desktop CPUs -- that's Socket 775.

The mobile Core 2 CPUs begin with T or P - they are socket 479 (aka Socket P in the guise used in your 1730).

thx :)