New Graphic card doesn't work but old one stil does.
So i decided to upgrade my graphics card from an XFX 7850 to the XFX 7870. i installed the new graphics card and nothing happened. The Mother board is getting power but when I press the power button nothing happens at all. I tried removing a stick of RAM i tried unplugging the dvd drive and seeing if i could get some more power. But still nothing whatsoever. I then reinstalled the old graphic card and everything booted up just fine. I don't know if its the power supply or maybe the motherboard not recognizing my Card. Here are the specs.
Phenom ii x4 955 black 8gb RAM 700w KDM PSU 2 Seagate HDD 1 LG DVD drive.
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why didn't you include the PS in your description?
you did hook power to the card and you did reinstall drivers?
Like swifty said, make sure that it is plugged into the PSU, you need at least two 6-pin PCI Express supplementary power connectors.
Also, did you un-install the old card drivers 1st?