Monitor is receiving no signal from Computer.

[Dher H]

My display quit working last week. It's an onboard AMD Radeon HD 7700 that quit working. All I got on the display is the monitor checking for a graphics card and finding none. So I bought another card... a PCI this time and installed it tonight. The computer still isn't recognizing any graphics card. I get nothing on the monitor other than the Search window for a graphics source from the computer. After the second attempt it shuts down the monitor to sleep mode. The new card is a Sapphire Toxic AMD R9 270X. I've reset CMOS, tried all connection options and still can't get the computer to send the signal to the monitor. I've also tried different monitors. I'm running out of patience/ideas!

Any ideas???

 

[HyNrgy]

this may not be the best answer but have you tried a different monitor cable? does it have HDMI output and if so have you tried connecting to hdmi monitor or tv?