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If you have the Win 7 disc do a boot repair insert it in the drive and tick on system repair. If you do not have a Win 7 disc then load the recovery CD's that came with your machine restore system if you do not have those go to Gateway and order one for your PC Notebook that is all I can suggest. John
Yes, the fan can be definitely be replaced. You can actually get a replacement fan for your computer at The Laptop Fan Shop online for about $22. The process of changing a fan is quite simple, so you should be able to do it yourself to save on labor. Although, if your computer is still under warranty you should contact dell directly at 1-877-694-3591 to see if they can replace it for you for free.
make sure it is well ventilated..enough space between the fan and any surface you put it on by placing an object just like how cooler ball works..
it is a little loud because of extra effort to cooldown your processor, usually happens if theres cpu extensive application like gaming, editing,watching hd movies, etc..or sometimes due to accumulated dust in the fan. just use air blower to remove dust that makes the fan inefficient
You only need to replace the fan, not the heatsink assembly.
Your computer repairer can do it or you can do it yourself once you identify the size of the fan and buy a matching one. You may have to solder a new connector on the lead.
try starting in safe mode and see if it does it still. It could be that you have some background program like Windows update or that new Windows active search function, which spends copious amounts of processor time cataloging your entire computer. Some anti-virus programs will do the same and eat up processor time. I'd try shutting down as many of these background processes to see what (or what combination) is causing the problem.
If this doesn't work, you might have a bad connection with your heatsink, which would cause your computer to stay at or your fan might be going bad, causing it to get really loud.
I'm not going to go into the possibility of it being used on a lap or bed or carpet where the fan intake vent is getting blocked. I know you've eliminated this as a possibility. Right?
It seems your laptop computer is not cooled properly which might be beacuse of a broken cpu fan as you mentioned it makes loud noise.
The reason your laptop turns off by itself is because theres a circuitry built on the motherboard which power offs itself if the internal temperature raises, this is a safety feature to prevent your computer getting burnt.
Please avoid using your computer and take it to a shop where you can have it checked for cooling.
hope this answers your question
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