Upgrade from 501 board to 504?

[Newbooty]

Is there any reason I should upgrade a 501 board to a 504 ?  It is running triple triple diamond.  I did notice the payout is on the board. Does that change with upgrading? 

[lookes]

The only reason would be for quieter audio if you were to use a MML2 sound board. You can change the payout in the menu. The board doesn't matter.

[Newbooty]

Thanks for the info.  Do you know what key and clear chip i would need to change payouts?

Still learning.  Thanks

[lookes]

The key chip to use is KEY45. A clear chip should only be used to change accounting denomination. You would probably never need it. It's number is IVC224. Contact member RB here for the chips.

[Newbooty]

This board has a chip on it that say 97%.  Will the 00017 still work to change percentage?  Can you tell me if this is for sure a 501 board?  I am just going by what is written on it.  Is there a definitive guide on how to identify MPU boards?

Thanks

[sixcardmark]

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.