If you decide to use the retail NVIDIA System Tools with ESA Support 6.03 on your XPS 730 and XPS 630, you must remove the entire Dell ESA softwares (Performance/Monitor/System Update) or you will have conflicts. We have not validated the NVIDIA System Tools with ESA Support 6.03 on these PCs. I am not saying they do not work, just do not mix them.
XPS 730x Colored LED11/16/2008 1.0.36 A03 AlienFX Vista 32/XP11/16/2008 1.0.36 A03 AlienFX Vista 64
XPS 730x Fan11/16/2008 1.0.0.8 A04 Thermal Fan Application Vista 32/XP11/16/2008 1.0.0.8 A04 Thermal Fan Application Vista 64
XPS 730 Colored LED & Fan04/23/2008 6.00.43.06 A03 Dell ESA NVPerformance Vista 32/XP(The above file will work in Vista 64)
XPS 630 Colored LED & Fan07/15/2008 6.00.45.06 A04 ESA NVPerformance Vista 32-64/XP
XPS 625 Colored LED01/06/2009 1.0.36v2 A04 AlienFX Vista 32-64/XP
XPS 625 Fan01/07/2009 1.0.0.11 A05 Thermal Fan Application Vista 32/XP01/07/2009 1.0.0.11 A05 Thermal Fan Application Vista 64
Dell Download StoreParts for Your DellDell DataSafe OnlineDell PC TuneUpWindows 7 Web TrainingTwitter DELLChrisM