Just bought an acer aspire TC-605 and having trouble installing my graphics card. I installed the graphics card(sapphire EAH6570) and got no output signal to monitor, I have tried connecting the monitor to the HD6570 and onboard graphics port and no display from either one. If I remove the card and just use the onboard graphics it works fine. I know the card graphics card works as I stuck the graphics card back in my Optiplex 745 that it came from and it works without a broblem.