Quick update on my S64's former popping problem:
All is well. No signs of magnetic disturbance from the magnet pad sound deadeners, no signs of overheating, the much muffled occasional 'tick' is only barely audible when the sound is totally turned off. It is a right quiet panel, now.
Should anyone else try this? The risks are yours alone, so only you can decide that. I would suggest reading the entire thread, consult your trusted resources and then decide.
For the record, I believe the magnet pads are by far the most effective single thing I tried & among the easiest. That surprises me since the idea seemed like a bad engineering joke to me at first and all it needed was a punchline. Go figure.
If popping is bothersome and you're nearing the end of your return period but can't find another 65PS64 for the swap... but ya' fell in love with the darned thing like I did... you might try the above for mild to moderate popping. But again, it's at your own risk.
I kept EVERYTHING I tried easily removable in case I ever have to call in a warranty repair claim.
IMHO, the things tried in this thread would NOT help at all with severe power board popping. That's swap, repair or return territory.