[Help] Radeon HD 7770 not displaying

So i have been running with my Radeon Hd 5770 for a while now and i have decided to upgrade. The card i bought is a Radeon Hd 7770 i installed it but it wont display anything to my monitor. i hear a post beep but my monitor still says no signal. i have no clue as to what is happening and i want this card to work badly.
Specs:
AMD FX-6100@3.3GHz
Asus sabertooth 990FX
2x4 Corsair Vengence ram
Coolmax 600w PSU (i know it sucks but i was scraped for cash)
Radeon HD 5770(currently due to the 7770 not working)

i have no idea why this card is not working even though the 5770 draws about 30W more than the 7770. Please somebody help me figure out what in the world is going on.
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More about help radeon 7770 displaying
  1. make sure you have the newest bios for your mb. becuase these are pci 3.0 cards they may not have the same pin outs as the older cards do.
  2. smorizio said:
    make sure you have the newest bios for your mb. becuase these are pci 3.0 cards they may not have the same pin outs as the older cards do.

    still no go this is getting quite annoying.
  3. It could be a defective card, try it on to another system.
  4. I'll try to install the card on my other rig when i get home.
  5. refillable said:
    It could be a defective card, try it on to another system.

    So the card is fine just that it wint display on my rig :/
  6. Mochtroid245 said:
    So the card is fine just that it wint display on my rig :/


    The same thing happened to me about 2 hours ago. I found out that I didnt plugin a pcei cable to the side of the graphics card so it wasn't getting any power from the power supply. Try plugging it in if all you did was insert it into the motherboard like I did.
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