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Quoted from crazi:Question - as most of the IC's are socketed - could that be an issue? Could they be drawing slightly more current or something? Although after a few minutes everything is working 100%.
A general rule is to "suspect previous work", so a poor solder joint may cause problems when cold, but as the game warms up, the issues disappear. If you're comfortable with a soldering iron, I would retouch the socketed PIAs for starters, and probably the main power header (J17) as well.
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