Best Course of Action?

[T3485]

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lol 2 remove 2 screws $20 but yeah any theories to why this would work?

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They probably blew out the dust with an air compressor as well. The only theory on why this would work is that when dust builds up combined with moisture it can cause problems for the motherboard and the RAM. The accumulation of dust will also cause the fans in the system to slow down and move less air, which in turn causes more heat to reside inside the box. I don't think that in itself would cause the PC to run slower per say, but it would definetly take years (?) off the life of the PC by accelearting the degradagtion of the power supply, CPU, RAM, HDD, Mobo, basically every part of the PC.

Heat can kill a PC and it's the main reason PCs aren't much, much, faster than they are today. The faster the CPU/RAM the more heat it naturally generates. You can combat this with heat pipes, fans, liquid cooling methods, heat spreaders, etc. This is the domain of the overclockers.

For the average user, I would be suprised if blowing out the dust would make much of a difference in terms of performance, though I have seen machines with obscene amounts of cat hair, second hand smoke build up, spider webs, and thick layers of dust, where blowing it out with air should have been a priority for the user.