Hi, My TAM has never failed me. Today, I wanted to finally install the SCSI enternet card into the unit. The scsi cards came with the computer when I bought it used. After that, the TAM would power up, chime, but no picture would ever come up on the screen...stayed black. I removed the addtional cards, still did the same thing. I tried resetting RAM, Cache, pressing the reset button on the motherboard, all in vain. I don't know what to do, but im really worried i ruined it. Thanks for any help.