EDIT: "Fixed" by putting tape over the PCIe connector contacts to force the card to work at 8x. To be fair, they do state that the warranty is only valid in the USA & Canada on their web page, it just sucks to think that they'd leave the rest of their customers out in the cold. http://www.powercolor.com/us/support_warranty.asp (if you're wondering, Powercolor's LA page links to the same US Warranty page) Anyway, since this door has closed, here's my situation: Last year I had been running this card on the secondary slot of an GA-H61M-D2P-B3 for about six months along with a Sapphire 7770 crunching. While it crunched it did so without issues. I had kept this card as a backup in its box and earlier this week I wanted to use it for an FX6300 build BUT I came across a problem... the GPU wouldn't give a display. I tested in several other boards: - Asus C60M1-I, bios 0502 (latest): works (x16 physical, x4 electrical) - Gigabyte 990FXA-UD7, bios F10 (latest) displays in slots PCIEx4_1, PCIEx8_1,PCIEx4_2. Doesn''t display on any PCIex16 slot. PCIEx8_2 wasn''t tested because there wasn''t enough clearance. } - Gigabyte GA-880GM-USB3, bios FE (latest): doesn''t work on PCIEx16 slot, works in PCIEx1 slot (with x1 to x16 riser) - Asrock 880GM-LE FX, bios 1.50 (latest): doesn''t work on PCIEx16 slot, works in PCIEx1 slot (with x1 to x16 riser) - Gigabyte GA-B75-D3V, bios F7 (original): works in PCIEx1 slots (with x1 to x16 riser), works in PCIEx4 slot. Doesn''t work in PCIEx16 slot. At the end of all my testing I was able to determine that the common denominator was the x16 slot. I tested on several boards with different kind of bioses from different vendors (AMI on the Asus and Asrock boards, Phoenix on the Gigabyte boards) and different CPUs (FX6300, FX8350, Core i5 2320, Phenom II X6 1065t, AMD C60) and the only thing in common was the x16 slot not working. Summary: the card doesn''t give a display if installed on a x16 slot. It will work fine on any x8, x4 or x1 slot but not on any x16 slot. Sadly I wasn''t aware of this problem since I happened to put the card into an x4 slot from the beginning and the warranty from the store expired last year For the record, I also tried different bioses from the GPU Database. I tested every bios that had the stock speeds and support for Elpida RAM. At this point I did this: - Install card in the x8_1 slot of an 990FXA-UD7 board. - Flash new bios. - Test in x8_1 slot. Boot to Windows and run GPU-Z's render test. - Test in x16_1 slot. doesn't display. - Repeat. While the card is in an x16 slot it's effectively dead. atiflash -i will say "adapter not found". Tried looking for a jumper of some sort to see if it was misconfigured but I didn't find any.