My son has a Envy 700-024, and I bought him a Radeon R9-270 to upgrade his gaming and rendering. we installed the card, PCI-e x16, use the 6 pin power connector, button up the case, power it up,and no video is detected. DVI-I cable, works with his onboard HD 4000 card. the new video card tested good in a different system I have. His PS is a 460, and nothing really extreneous is plugged in to tap resources. Any Ideas?
Manual says that the onboard will not work if a graphocs card is installed, which is understandable. there is no setting in the BIOS to disable onboard graphics. Any help?