Yes! That would be enough and youíve shed enough sweat until now! The information looks perfect as of now. I think you are misled in that concern and I feel you could have easily avoided the entire overheating episode. Henceforth please rely only on reliable sources of information. I can definitely show you authenticated proof of whatever I say, I never speak in assumptions, I always have a set of evidence ready, that is how every forum poster should be. And speaking about your problem, could you try the following changes on your system? I definitely feel that will help.
- Remove the case of the system using a screw driver and make sure you remove the side from where you can see the entire system
- Look for dust in the system and if you happen to spot any, use either a low power vacuum cleaner or a duster and dust it off.
- Remove the CMOS battery and fix it after which remove the video card and reinstall it after wiping it properly
- Rescrew your system properly. Make sure, everything you have removed has been re-assembled as it was earlier and the system looks clean enough