I have an Portege R500 series notebook with U7600 processor, and would like to know what other users average operating temperature is for normal desktop use i.e. word processing, watching DVDs/youtube, surfing the net, etc.
I'm asking because I've recently bought a second-hand dock (port replicator ii), and also upgraded the OS on the laptop. It seems to me that there may be a problem, because under heavy usage (compiling software) the performance seems to degrade on the machine - only solution seems to be to power off the machine and leave it off for a few minutes.
Even when I'm not doing anything heavy - such as typing this post, the CPU temp lingers in the high 80's (celcius).
I've seen on the forums that other people have had problems with overheating on this laptop model. My machine is about three and a half years old. I've opened it up and cleaned the fan with compressed air, and verified that it actually spins when powered on. However, I don't feel much airflow if I put my hand next to the exhaust when it's on.
Can someone confirm if the exhaust is supposed to s u c k or expel the air? Can you confirm your average CPU temps? Anyone know of issues with the dock that cause overheating?
I decided to take my laptop apart to see if there was anything obviously wrong with the cooling solution. The first time I noticed the fan was covered in dust; I cleaned it with compressed air. But this didn't seem to make much of a difference.
I then removed the fan and noticed that the thermal interface material seemed really 'worn out'. i.e., it was spread thin on the CPU, and there were solid chunks around the surface of the cpu, where there is no contact with the heatsink. So I wiped it all off and put some coolermaster compound I had used on my desktop PC.
The result was obvious: 60C idle, and a max of 73C with both cores at >50%.
The other thing worth mentioning is that I noticed that keeping the laptop lid closed when it's on the dock 'traps' the heat, and raises the temp by a good 5C. So now I make sure I always keep it open.
Hope this will help anyone else having the same problem.
I'd still be interested to know what other users temps are , for comparison.