zogpeanubutter

Hello,
My wife has this exact same problem, sounds like a leaf blower lol. I removed the heatsink, cleaned and applied some artic silver compound, still have same results that fan is ramped all the way up. I have an identical computer but have no problems. I was wondering if thier is a way that the heat pipes used to dissipate heat have failed in some way or are defective. after i reseated the heatsink i shut it down and felt around some, the pipes/fins are cold, not even warm, just like you set it in front of a fan, but when i felt the aluminum block that is seated the the cpu, that sucker was HOT. I guess i can see if i can swap heatsinks from mine to hers or if it would just be better to purchase a new heatsink/fan.
If anyone can enlighted me on if/how heatpipes can fail that would be fantastic. thank you for any answers you may give