Upgrade CPU, possible fan problem

passeuli

Honorable
Mar 24, 2012
6
0
10,510
I decided to go ahead and put in the new CPU in my Toshiba A305-S5872. I took it apart, cleaned the heat sink and fan (boy was it dirty) and installed the new chip. When it powered on, the new drivers installed and it's working great. And, boy, is it quiet. My problem is with the fan. I downloaded programs to check the temp and it's staying normal (below 50 degrees Celsius), but the fan isn't kicking in. I tried downloading SpeedFan, CPUID HWMonitor and AIDA64, but none of them showed my fan (at all). When I go into BIOS, there's no hardware section for the fan. I checked and the driver for the fan is working properly. The fan kicks in for a second or two when I first boot up, but never comes on while I'm using the laptop. But, like I said, the temp stays normal and even goes down while I was watching the different monitors. For different reasons, I ended up taking the laptop apart three times when I installed the new chip and I really don't want to have to keep taking it apart (and risk damaging something). Is this normal for the fan to not run if the temp is staying normal?