I have one of those. A real workhorse media laptop. The sound system will make you think you're in one of those old Maxell tape commercials.
I found over the years (Yes it still works) that the intake fan and the cooler get clogged up at the drop of a hat. This causes the fan to drag and the bios shows a fan warning. My solution is this.
Lay out a towel and flip the laptop over bottom side up.
Take a thin stiff wire or toothpick that will fit between the grill and push it in between a couple of the fan blades. (This keeps the fan from free spinning and maybe blowing out a bearing.)
Take a can of cleaner air and using the tube, spray off the fan real good.
Angle toward the cooler fins and give them a good blast.
From the side where the air vent is, give that a good close up blast. If the tube fits between the grill, slide it in and give it a real good blast.
Go back to step 2 and repeat.
I have to say they're good laptops. I have the dv6205us. You just have to take care of them. Do a clean up a couple of times a year and that will keep that part running good.
Also keep in mind that laptop is a misnomer. In your lap, on the arm of the couch, or on the bed covers, will block the air intake vents and cause it to get hot. You really need to give this a read also. Save it to your drive for future reference.
dv6 media laptop
Standard issue dv6