I have a Dell N4030 running a Win 7 OS and IntelĀ® Core i3 CPU M 350 @ 2.27GHz.
I just downloaded SpeedFan to monitor my laptop temp because sometimes it can feel a bit too warm for my liking.
I left it on idle for 10 min and this is the reading

This is the reading when I runned a few tabs on Mozilla firefox for about 10 min (as I am typing, HD can get up to 45C+ and Temp1 and Core1 get up to 80C+)

I have about 42 more days of warranty. I bought the laptop August last year and after a few months, it had overheating problem ( I was at college and you know sometimes watch movie with lappy on bed) So sent laptop to Dell service centre and they fixed it.
But lately I realise it starts to get warm again. BUT I have been using cooling pad all the time--after the last overheating incident.
I know they say if overheat, clean fan and all that, but since I have warranty, I don't want to fiddle with things that may void my warranty.
What do you think I should do? Can I just call Dell technician to come over just to clean my fan? Is it reasonable?
Your Core is 71C at 28% load. Image if 50% load. I think the laptop will off automatically. I strongly recommend you to send for warranty as soon as possible before your warranty ends.