Studio XPS 16 (M1645)

Featuring a quad core Intel Core i7 Clarksfield processor on an intel PM55 chipset mainboard and a 1GB ATI Mobility Radeon HD 4670 or 5730. Some of these XPS systems were found to have throttling issues when demanding applications like games were run on them. Dell was able to provide a fix for the issue with the help of community input. The fix involved bios updates and a more powerful AC adapter.Other laptops were also found to suffer from the same throttling issue.