HI guys. I repaired a motherboard from a Hp laptop that would not boot up. I re-soldered the cpu. Removed the MB. Used a cut apart pop can with an opening the size of the cpu.I also used tinfoil to protect the MB. Then I used a mini blow torch to heat up the CPU and solder to a point I felt was long enough to melt the solder. This way I did not have to heat up the whole MB. I put it back together with a better silver heat transfer compound. It was worth a chance that it was the CPU as Hp have known cooling issues with this model. I was successful with this repair. I am not a computer guy but a welder by trade. Maybe this is something that would work for you too. Benny