Sega-Naomi

HI everyone im new to the3 forum ,but i have searched for this problem and have tryed everything ,from reseating the board inside the dimm,replacing the gd rom, gdrom cable ,ram inside the dimm,but im still getting error 22,what else can cause this error,the only things i havent changed out is the naomi board.

any help on this problem would be much apreciated:)

Error 22 refers to the fact that the Naomi cannot communicate with the Dimm board. This problem can be caused by anything from a bent pin to a dead Dimm. :smt009

try replacing the usb cable and\or check the usb port on the naomi mobo...this can also cause that error