Hi there, I just joined.
Alright, my MB is DG102GGC2, P 4 3.0 Ghz, 2 GB DDR2 RAM. I've kept the CPU case open, and I can see two fans: one is the power unit, the other is the fan over the processor.
Generally, the processor fan hovers at around 2000 to 2300 rpm with the temperature being about 51 C. This is what SpeedFan shows right now:
Fan1 : 2024 RPM
Fan 2, 3, 4: 0 RPM
CPU : 51C
HD0: 45C (80 GB one, running XP)
HD1: 45C (1 TB one, used for storage)
There's also a lot of voltages written at the bottom, tell me if posting that is needed.
Anyway, what happens is that at times the processor fan speeds up, to something like 3950 RPM. This happens generally when I start a game, and not even a shooter, even an arcade game can trigger it; it also happens when I have too many Facebook tabs open. Usually the processor fan speeds up and then slows down in a few seconds, but sometimes it doesn't slow down at all, it continues at high speed (I don't know whats the highest speed its capable of) for minutes on end, so I either have to put the computer on standby for a few minutes or stop using it altogether. The temperature at this point rises by three to four degrees.
What I want to know is, is it safe to keep on using the computer for an hour even after the fan has speeded up and is making a lot of noise? There are threads on the forum where people have complained of 70 C temperatures, mine never reaches that high, though if the hard disk reaches 50 C, I always put the computer on standby and let them cool off for a while.
I don't know much about hardware. I've heard about thermal paste and stuff but I don't know how to apply it, and would rather not do it myself since I might end up breaking something. I tried removing the fan once to clear the dust but couldn't get it out, it had some sort of locking mechanism.