Museum of the Game® & International Arcade Museum® Forums

Upgraded my fully working NBA showtime vegas 777 board from 2.5 to a possible 3.0 Sportstation. Installed the 3.0 security pic from arcadeservice and burned the 3.0 boot rom to a 27c040. When I attempt to burn the compact flash. im getting a black screen on game mode, and in test mode the hdd checks are bad and say fail.
However I'm getting a solid green light on the hdd activity led meaning its stalling out. I also noticed there are different size 3.0 chds files online and want to know which one is the proper one. any help would be appreciated.