Compaq HP 6735b, num lock/caps lock lights flashing 5 times and no video. From what Ive read, a reflow of the GPU is indicated. Remove the board and cook it. There are quite a few videos on youtube. I have a MHT 750 heat gun which at 750° F is too hot I think. Then theres always the oven, 10 minutes @ 400° F. Either way, a lot more than just the GPU is going to get very hot. Does anyone have any hints or clues on this procedure other than "dont do it"? The laptop is a doorstop now, I cant make it any worse. There is no critical data on it.
The manual says "Thermal pads are used on the Northbridge chip and the section of the heat sink that services it. Thermal paste is used on the processor and the section of the heat sink that services it." Are the thermal pads necessary vs just paste?