There is NO solution for Inspirion 5110 overheating problem. The official Dell "solution" is to UNDERCLOCK your laptop.
They wont provide us with solution or with answers. I have an Inspirion 5110 with i5 and Nvidia GeForce 525M , but can'r use it for high demanding software (games, video-editing, rainbow tables processing, etc. ) , becouse it gets overheated within few minutes and shuts down. And I'm not the only one. It seems on official Dell forum and on other websites that everybody who has an Inspirion 5110 have the same problem. It's a design fault as air-openings don't provide enough air for cooling-fan.
This laptop is usable just for web-browsing, emailing, word processing and other low-demand software.
It's the same as you would go to a car shop and buy a car which has a maximum speed of 300 km/h, for 100.000€. And then you would realize that you can't drive it faster than 150 km/h , becouse of overheating. Of course you would return to car shop, but the car maker would reply that the only "solution" is to drive at max. 150 km/h.
If I knew it before i buyed Inspirion 5110, I would buy a much cheaper laptop, with i3 instead of i5 and with integrated graphics instead of Nvidia GeForce 525M , for MUCH LESS money! It would give me the same power as "underclocked" Inspirion 5110 !
Dell should provide us buyers with a real solution , maybe install stronger fans into laptop or provide us with special cooling pad, designed for Inspirion 5110 (almost everybody who has Inspirion 5110 and buyed a cooling pad says that it doesn't prevent an overheating in few minutes in case of using high-demanding software!).