cooling laptop processor?

i am using a dell inspiron 640m (i call it lappy dino) few years old now
the processor is an intel core duo T5200
i use my laptop as a desktop because its screen is fried, meaning it never moves and uses an external monitor

i have 3 questions here
1) i have been forcing my fan to run at maximum + a cooling pad blowing air towards the intake vent,   so far my cpu temp dropped from 60-70 Celsius to a nice 45 degrees the question is, would      
  running my fan at max damage anything or itself?

2)is there any risk of making your cpu "TOO COOL" and how will it hurt the computer

3) would it be better to remove the 
 heat sink plastic cover like in the picture
 ,just the heat sink cover(the picture shows all cover removed) and not the heat sink itself then
blow air directly at it with my cooling pad  

Picture of cooling laptop processor?
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frollard6 years ago
1) Cooler is better. Considerations:
Fan noise is annoying, increase airflow with a larger diameter, slower moving fan to reduce noise. (like what the cooling pad does)
Wear and tear; Things have finite life-spans, and using them more will wear them out sooner. CPU fans are *usually* cheap (with the exception of laptops) but its still not that hard to find them.

2) With passive cooling (moving air over a heat-sink and directly transferring the heat out) you cannot hurt a cpu by making it too cold. Some people hook their cpu to a heat pump (refrigerator) and drive the temperature down to about 40 below zero. The temperature can't really hurt the machine, but the water condensating on the cold surface can.

3) The copper tube coming from the cpu and going over to the vent is a Heat Pipe. They are incredibly thermally efficient for being so small and you wouldn't be able to beat it with direct fan cooling (for the area involved). Increasing airflow over the radiator fins on the heat pipe would help greatly.

Lastly "what are these holes for"? -- airflow, even slight can move a fair amount of heat compared to stagnant closed area. They wanted a little flow there.
Couldn't have said it better.
michaelgohjs (author) 6 years ago
1 more thing about the built in cooler
actually i meant cooling the processor with the copper heat pipe thing with my cooling pad, so the idea is to have the plastic cover removed so i can have the build in fan blow through the other end of the heat pipe(the one with fins) and another fan to blow at the heat pipe it self.
and since i have another heatsink ( the one my teddy bear is wearing in my profile pic) is it a good idea to have that in contact with the copper heat pipe?

michaelgohjs (author) 6 years ago
thanks a lot guys, its really helpful,
i read that my processor could take up to 100 degrees celcius so i guess 50+ would not be too bad
anyway, currently for downloading and surfing the web would you recommend using the fan as it is or forcing it to maximum. i am using a cooling pad too
the temperature running the fan at max is 45 but running at normal it is about 53-58
plus i am only using it on power saver mode (this dinosaur cant handle any games anymore)
rickharris6 years ago
IF you can get it down to absolute zero then it will run at infinitely fast speeds - who know what may happen then.
mmmmmmmmmm...delicious einstien precipitate.
seandogue6 years ago
The fan motor will die faster when operating at it's maximum for extended periods, as logic dictates. It will also likely get dirty faster.

Too cool? Yes. Most consumer electronics are specified for operation in a narrow *ambient temperature range of about 0C to 55C. (ambient as in the room temp, not the temp at the CPU)

The center vent idk but it could be for the graphics proc, the PCI bridge, or for general cooling.