Replace the Thermal Paste on the Processor (CPU) (After Thorough cleaning, of course)If there is a graphics chipset replace the Thermal Pad.I would like to suggest not replacing with a Thermal Pad, but use a small piece of copper sheet instead. Use Thermal Paste on top of the graphics chipset, and top of copper plate. (Sheet)Much better heat dissipation. Sound like I'm talking a foreign language?The top of a Processor,
http://www.cpu-world.com/CPUs/K8/AMD-Turion%2064%20Mobile%20technology%20MT-40%20-%20TMSMT40BQX5LD.html(AMD Turion 64 MT-40 ), and the bottom of the Cooling Tube's metal plate that sits on it; are not perfectly smooth,
http://www.ebay.com/itm/Compaq-Presario-V5000-HP-Pavilion-dv5000-CPU-Cooling-HeatSink-403827-001-B93-02-/261131312739?pt=LH_DefaultDomain_0&hash=item3ccca39e63[Large view automatically opens to the Top view, of the Cooling Tube/Heatsink.In the two small views underneath, click on the Right small view.This shows the Bottom view of the Cooling Tube.The square copper plate to the right, that has 4 'ears' on it, sits on top of the Processor. The copper curved tube is the Cooling Tube.Slightly flattened copper tube sealed on both ends, and filled with Nitrogen.The finned rectangular object is the Heatsink.The Cooling Tube metal plate absorbs heat from the Processor.In turn, the Cooling Tube absorbs heat from the small metal plate, and transfers it up to the finned Heatsink.The Heatsink absorbs the heat, then radiates it away with it's tall, thin fins.Air flow from the Fan Assembly, helps carry heat away from the fins]A magnified view would detail, 'Hills, Valleys, and Pitholes'.When the two parts are mated together Air Pockets are created.In this case air is an Insulator, not a Conductor.Thermal Paste fills the above imperfections, and is an Excellent conductor of heat.After time, and also repeated overheating; the Thermal Paste dries up. Looses it's thermal conductivity properties.This, is what I believe is going on with your laptop.Secondly;A Thermal Pad is a material that is impregnated with Thermal Paste.Carefully peel it off if used on the Processor.They're junk, and can't be reused anyway.[Usually just 1 Inch by 1 Inch, and 1/16th inch thick ]I use an old credit card (It's plastic), and scrape off as much of the old Thermal Paste, or Thermal Pad residue; that I can.(Wipe credit card off of paper towel, repeat scraping; paper towel, and so on)Then follow with Q-tips dipped In Isopropyl Alcohol. (Rubbing alcohol)91 percent or higher is best, but 70 percent will do.50 percent = no IMHO, because it is now 50 percent Alcohol, and 50 percent Water.CAUTION! Isopropyl Alcohol is EXTREMELY FLAMMABLE!Use in a WELL ventilated area with NO sparks or flames present.
http://www.hardwaresecrets.com/article/274The following video details reflowing a graphics chipset, and applying a piece of copper sheeting to it.It is JUST the added piece of copper sheet, that I am showing you, Not the reflowing,
http://www.youtube.com/watch?v=JEpnqhRYGLw8:23 through 8:38.(Hobby store should have small piece of copper sheet)HP Support > Compaq Presario v5000 series of Notebook PC's - Service Manual,
http://h10032.www1.hp.com/ctg/Manual/c00700903.pdfUse Q-tips, a small fine soft brush, (Make-up brush?), and a can of compressed air for computers to clean the Fan Assembly and Heatsink.Blo-wing air in from the outside just clogs the cooling system up.Even if you do get some relief, it is only temporary.
http://www.youtube.com/watch?v=AkAeE5I5E_ASee that 'lint blanket'? Air from the outside just shoves it in deeper, into the fins of the Heatsink.Open laptop to properly clean.Use an ESD wrist strap, and have it's alligator clip attached to a good ground source.Example,
http://www.radioshack.com/product/index.jsp?productId=2103245Thermal Paste example,
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3829122&CatId=503For additional questions please post in a Comment.Regards,joecoolvette