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1. Your PS3 may have a faulty temperature sensor making it unable to detect the heat of your PS3 and it's default is to set fan speeds to max incase of overheating.
2. Your PS3 may have a faulty fan due to previous dust or heat. A replacement may work.
3. If it's an older PS3 the CPU heats up more for newer games, the newer games use more CPU power causing it to heat up faster and the fan to speed up to prevent overheating.
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I had this problem after I repaired the PS3 because the YLoD. I opened up the 3 again and noticed that the thermal paste was not making complete contact with the heatsinks even though they were screwed down tightly.
I decided to apply another layer of paste to both heatsinks and this seems to have quieted the fan down. You could try that
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I have a similar problem, the fan starts off quiet then after about 20seconds starts to speed up this is just on the menu page not in any games or anything. after about 1-2 mins the fan is at full blast.
I've reapplied the thermal paste on the main processors, no effect, how reliable are the heat-pipes on these? I've had them go on CPU HSF's before. If I leave it on it stays at full speed and if I turn it off and on straight away it'll start mid speed and then reach full speed before its even finished booting. likewise if its cold it'll last longer before it speeds up.
由 Robert Stanton 完成的