I have an old DELL DIMENSION 9150 desktop with an pentium d 2,66GHz 4GB of ram and an old nvidia GeForce 9100 gs with 256 mb of vram,and i'd like to upgrade it, i was thinking on a cheap 771 xeon processor but i´m not sure if the motherboard is compatible, im not sure but i think the chipset is an 945P (as the tittle says), can someone tell me if the motherboard is compatible with xeons and if it is, with wich xeons, if not what pentium would be better