I have a WinXP_SP2 computer with an ASUS motherboard, has a 3.2 GHz hyperthreated Pentium processor, two 250 Ghz HDs, high powered video card. There is a huge fan on the processor and an additional case fan as well as thepower supply fan. Most afternoons - say after 1500 - the motherboard monitor alarm tells me that the processor temperature has exceeded the pre-set alarm limit of 70C. I have checked the air vents in the case which seem clear. Normal temperature of the processor earlier in the day is 50C. I checked the case fans and processor fans. The additional case fan and the processor fans are working as they should. I thought the power supply fan was not working so took the computer to a repair shop, but they told me the power supply fan was fine and to increase the alarm pre-set level for the processor temperature to 90C.
Whilst the temperature alarm does not go off every day, it happens too often. I have not increased the temperature alert level as other information suggests that 70C is the maximum for pentiums.
Can anyone tell me whether 70C or 90C is acceptable and suggest why the processor is overheating (if it is) and what I can do to find out why the processor temperature rises so far when I am doing normal email work - not high level graphics.
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