Why wouldn't a few seconds of a heat gun on a medium setting at each set of chip pin's be enough to re-flow the solder? Solder melts fairly quickly under a heat gun.
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I recently fixed a problem with a video card in my 2007 Mac Pro by setting my oven to 400 degrees and letting the card sit in the oven for like 6 or 7 minutes. Worked like a charm!
Why wouldn't a few seconds of a heat gun on a medium setting at each set of chip pin's be enough to re-flow the solder? Solder melts fairly quickly under a heat gun.