Hello everyone, I am looking for some help disabling the onboard video on my emachines T6410 so that I may install a PCI-E video card. I have seen several similar posts to mine on here already, and I have already tried many of the suggestions that I found, unfortunately none of them worked. I am hoping the impressive knowledge base on here can help me out. Here's what I have: The new card: ATI sapphire HD5450 PCI-express card I also bought a new, 450 watt power supply to ensure that wasn't the problem. Simply installing the card did not work: no video from the PCIE card and no video from onboard video while the new card was in place Disabled the ATI display in hardware manager -- still did not work. Uninstalled ATI drivers in Add/Remove Programs -- still did not work. Went into BIOS and there is no specific setting to disable onboard video. The best I could find was setting the video signal preference, which I then changed to "PCI-E" -- still did not work. Those were all of the possible solutions that I was able to find online. I cannot install the card and then reinstall windows because I cannot get any video output from PCIE or onboard while the PCIE card is installed. I'm a bit frustrated that I spent money on the card and also on a new power supply. Any ideas? Thanks in advance!