I purchased a new gigabyte radeon hd 7950 (GV-R795WF3-3GD) yesterday and I thought I would be happy about it considering the positive reviews I have seen online. Just the opposite.
I put the card into my Pcie 3.0 slot and powered it up with the two pcie 6 pin connectors from my PSU, and have been dissapointed since.
It booted up with those fuzzy colors that really old computers have (16 bit?). I thought that was probably because the drivers were not installed automatically.
I followed the general steps I normally do when installing a graphics card: go online and find the latest driver for the card. In this case, I went to AMD website and used the auto detect function to download and install the drivers and catalyst controller. After the download and installing, I restarted my computer as it asked me to and ....it's gone.
After the windows 7 animation, it does not proceed to the login screen, all I saw once or twice were random lines through the screen and flickering.
I went into safe mode and uninstalled the driver and catalyst controller and I was back to the lowest resolution 16 bit coloured graphics. I tried installing drivers from the gigabyte website and that gave the same result. I even reinstalled windows to see if it was conflicting with other drivers, but nope, same result.
To go back to my intergrated graphics that shows stuff properly, I had to go into BIOS and change my graphics output from PEG to IED so I could atleast login and try to fix it a few times.
I have yet to actually use the card properly. If any help could be provided, I would really appreciate it!
Motherboard: MSI Z77 G43
Processor: i7 3770k stock speed
PSU: Thermaltale 700W

I really need some help quickly because I didn't go on extended waranty and I only have 7 days to return it in case its a bad card.

Thanks,

Gigabyte graphics cards have a three year warranty.  You should work with their tech support to resolve your problem.

I avoid Gigabyte products like the plague...  nothing but bad experiences for me, especially with their graphic cards...

Pics of my rig
FX-8350 @ stock, custom water cooling, 8Gig Corsair Dom 2133 9-11-10-27, Asus CH V Formula, SilverStone ST-1500 PSU, Auzentech X-Fi Prelude, Logitech Z-5500D , 1 x Water Cooled HIS 7970, Asus VW246H Monitor, Win 7 64Bit HP, Corsair 800D Case