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New Graphic card doesn't work but old one stil does.

Last response: in Graphics & Displays
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September 30, 2013 5:31:28 PM

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.

More about : graphic card work stil

a c 120 U Graphics card
a b V Motherboard
September 30, 2013 5:36:19 PM

why didn't you include the PS in your description?

you did hook power to the card and you did reinstall drivers?
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a b U Graphics card
a b V Motherboard
September 30, 2013 5:39:22 PM

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?
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September 30, 2013 5:46:35 PM

No I didn't.So I absolutely have to uninstall the old drivers? I did list the Powersupply.
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September 30, 2013 5:47:36 PM

I have one PCI-E connector and am using an adapter for the second.
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Best solution

a b U Graphics card
a b V Motherboard
September 30, 2013 5:50:07 PM

Timothy Walker said:
No I didn't.So I absolutely have to uninstall the old drivers? I did list the Powersupply.


Yes. Uninstall the old drivers. This will fix your problem most likely ;) 
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September 30, 2013 6:11:50 PM

Worked like a Charm Thank you so much!
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a b U Graphics card
a b V Motherboard
September 30, 2013 6:13:47 PM

Timothy Walker said:
Worked like a Charm Thank you so much!


No problem. If It help, picked the reply as best solution.
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a c 120 U Graphics card
a b V Motherboard
September 30, 2013 7:36:25 PM

Timothy Walker said:
Worked like a Charm Thank you so much!


your welcome!
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!