@ghostcri, .02VDC drop isn't enough to cause any problem at all.
Have you repinned J101 and J114 on the power/driver board?
Have you repinned J210 on the MPU board?
Can the reset be tied to an event going on in the game?
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Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact ... for board repairs
http://www.PinWiki.com - The Place to go for Pinball Repair Info