after about 20 minuites of playing on my ps3 it's fan speeds up so much that it produces the same amount of noise as a hair dryer :/ this makes enjoying films impossible and it puts me off playing games. does anyone have any ideas as to how to fix this? I could phone sony but then theywould charge me £100+ for a repair. the only other thing I can think of is replacing the thermal paste :/
I'd suggest this. A can of compressed air isn't expensive, and can be used on computers and also any other consoles.
Be careful that you don't blast the dust further into the fan. I used a can of air to clean the dust from the fan in my laptop and ended up burning the fan out due to the air pushing the dust in more.
My 60GB PS3 started doing this very shortly before I got the YLOD. If it is an old model, it could very well be overheating, as they are well known for it, in which case the noise will be coming from the fan trying to compensate. The problem is, the older models had fans which were too weak to keep the temperatures down, so no amount of cleaning will prevent it. I would recommend cleaning it as others suggested, but chances are it's just prolonging the inevitable. If it's a slim model, disregard what I just said as they had fans which were good enough to keep the temperature down. Now would be a very good time for a backup though just in case it does die.