I successfully flashed the FX4500 for my G5 that had the RAM chips on the back. Decided to see what happened if I used the other card without RAM on the back, got the usual garbled/corrupted video. I thought that I'd put the ROMs that I pulled off of these cards here. I know literally nothing about ROM editing. I imagine that the two PC roms are relatively similar. Would it be possible to effect the changes made to the ROM on the compatible card to the incompatible card? IE whatever needed to be changed on the working card, change it on the non-working card and leave the rest of the non-working card's ROM unedited? Any ideas? The Backup.rom is the backup of the working card G5.rom is the G5 rom nochipsb.rom is the backup of the nonworking card.