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IGT S2000 and Vision Games / Re: Upgrade from 501 board to 504?
« Last post by sixcardmark on Today at 03:47:25 PM »Your machine has an SB001000 and an S+ 97% SS chip on it. You need either a different SS chip or the correct SB chip and the correct key chip to change payout %. Key 17 is for game king.