Ok, so I've been following this thread for some time and I've learnt a lot from it! KUDOS to everyone.
BTW before I start describing the main issue, I would like to ask something else. My laptop has a 6 monthly issue in which the laptop fan starts making noise. It starts rattling, but otherwise works just fine. Is anyone here facing a similar issue? I've got the fan replaced twice till now and yet it happens after roughly six months. I don't know if the issue is because of dust or something else. Any help would be appreciated.
It's been 8 months since the second fan replacement and now I've got a problem that I can't comprehend. About 4 days back my DV6 6121tx's cooling fan started malfunctioning (there was a really mild rattling sound, not as loud as the last two times and the fan was noticeably slower while I would game). I used to get error 90B or something like that when I booted up. My system started over heating while on high performance mode on normal load. So I called HP customer care and they sent a technician to resolve the issue. Over the next 2 days I observed the issue. The fan error was erratic, sometimes it would show other times my system would boot just fine. Anyways, I noticed that my fan did not speed up when my notebook got heated up. There was no noticeable airflow through the main vent (just very light airflow, much lesser than normal). So when the HP guy came I described all that to him.
He checked the fan and told me that he would order a replacement. He also applied the themal paste to the GPU and CPU.
Today, I find out that a friend of mine has the same problem with his fan (doesn't speed up, random fan errors on boot, etc) but his notebook doesn't heat up like crazy on normal load, he even games on it with acceptable temperatures. This got me thinking that it could be a problem with the main heatsink. In any case, is there any way to verify that the problem is with the heatsink and not the fan?
My system temps BEFORE THE ISSUE: Normal : 35-40c, ON LOAD: 75-80c
My system temps AFTER THE ISSUE: Normal : 80-90c, ON LOAD: I really don't want to find out..... :/
I really have no clue of what's going on.