I have just upgraded my graphics card to Gainward Nvidea Gefoce 9800GT 1024 green edition. But after installing and booting up everything seems ok(single post beep and fan spins on card and cpu) but the monitor just goes straight to digital power save mode. All required pecs ok.
More aboutdisplay upgrading graphics card
what is your previous card? list the rest of your system here(just in case)... check again the cable connector to the monitor and try reseated the card...
Geforce 7600 GS AMD Athlon 64 2GB memory Leadtek K8M890M2MA Mobo 500w psu I have reinstalled the old card and all ok so it cant be monitor lead and also refitted new card 2 or 3 times