Greetings, Recently I opened my Core 2 Duo (early 2008) 15" Macbook Pro to change my hard-drive. After closing it, the fans went crazy; after 1 minute of use they reach 6000 RPMs and never go down. I've tried clearing PRAM, and SMC. Nothing. I opened the laptop, disconnected the PRAM battery, waited, connected, back to January 2001... 2 minutes later: 6000 RPMs. Manual spray of air throughout the board... 6000 RPMs. Then I turned the laptop on without the cover... 2000 RPMs... Connected the cover: 2500 RPMs... Closed the cover: 6000 RPMs. Opened the cover: 2500 RPMs. Temperatures are normal. Highest is Airport: 43ºC. Lowest is Enclosure Base: 29ºC. Any ideas of what is going on??? I thought on a short-circuit of some electrical component on the logic board by the top case, but using a sheet of paper before closing it results in the same.