Hello, I installed today a new Radeon hd 6850 in my computer. With the 12V power connected from the main power switch (6pin 3 yellow/3 black), the computer does not start up - with the connector disconnected, the computer starts normaly, but the card is not found in the hardware. The mainboard is a Z68X-UD3H-B3 from Gigabyte with i5 2500K processor and 8Gb Mem. No signal from the card when connected to the monitor. The graphics cooler on the Radeon card works normal. What can I do? Thanks
More aboutradeon 6850
Can you try the card in another PCI-E slot?
Also, make sure no connection is loose and the card is properly in the PCI-E slot.
What power supply do you have? You sure there's enuff power for everything when you plug it in?
Hi, Yes I tried the other PCI slot and the power supply is a rasurbo 650W! I think this card is DOA and I send it back. Yhanks anyway