Last night, I was playing a game on my laptop. I wasn't paying attention and accidentally blocked the air intake on my laptop for a few minutes with my leg. It got really hot (as one would expect) and I noticed a buzzing/grinding noise coming from the fan. I turned off the computer and went to sleep, thinking it needed to cool off.
When I turned it on this morning, the noise was still there. I checked the CPU temp, and it was about 40C when I turned on the computer and loaded up the monitoring program I use (CAM by NZXT). Over the next ten minutes, with the CPU idling, the temperature rose to 80C, at which point I turned it off, as I was concerned the processor would be damaged. CPU load never went over 5%. The fan was still blowing air out of the vent, although not as much air as it usually would if overheated, but as much as it would during normal operation. All of this is true when running both Windows 10 and two Linux distros (ArchLinux and Mint), and the noise is present when the bootloader is up, so I'm fairly sure it is a hardware issue.
Is this a fan issue, or maybe a heat sink problem? The fan is still blowing air, and the CPU isn't running that much, so it seems like it shouldn't be heating up as fast as it is if it's a fan issue. How expensive should I expect this fix to be?
Asus ROG GL551JW gaming laptop, purchased 15 months ago
Please let me know if you need any other information.
Edit: Note that as the laptop may still be under warranty (I'm trying to find the warranty info) I don't want to open the case yet.
Edit2: No warranty, disregard edit 1.
Edited by pendant4, 14 March 2017 - 08:32 PM.