Inspiron N411z running hot?

fiodis

New Member
Hello everyone,
My 2 year old Inspiron N411z used to run fine when running graphics-intensive applications, but over the last few months it just abruptly shuts down after thirty minutes to an hour. I suspect it's overheating; the temperature sensors are reading ~50 to 60C idle, and ~90C just when watching a video. When I play games or debug some of my graphics programming projects, it spikes as high as 100C.

The fan works pretty hard, and it doesn't seem to let me change its speed anyway. I've optimized the integrated graphics card as much as I could through the Intel panel and application settings to draw less power. I also got a (relatively cheap) cooling pad, a small Targus dual fan pad. Temperatures remain high.

At this point I'm suspecting there might be something wrong with the heatsink, which is a shame since it's about a year out of warranty. Or there might be excessive dust in the vents; I can't see in there very well without taking it apart, which I haven't yet. I'll get some compressed air and try cleaning it, but I wanted to ask if anyone else has had similar trouble with the Inspiron laptop line. What were the symptoms and causes? I'm not sure what else might be the problem, if it's not the heatsink and/or vents. Could anything else cause this behavior?
 
A lot of stock thermal interface on laptops are pretty horrid (ie, the pink square).

You'd probably have a large degree of success from removing the HSF, cleaning off all of the other crap and replacing the paste with something decent.

Also, laptop heatsinks are pretty small and even a small amount of clogging-dust will impact its capacity to a significant degree.
 
I opened it up and there was a lot of dust. I cleaned it out and it idles at the same temperature but doesn't immediately shoot up to 90C when I launch a game, which is an improvement. Before when playing Minecraft it'd reach 90C in about four seconds; now I played it for fifteen minutes and it only climbed up to 80C.

Is 80C a reasonable temperature in this case? I still want to change out the thermal paste, but at least it won't boil water anymore.
 
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