GTX 780 Ti Classified no display

I recently bought a 780 ti and went ahead and upgrade from my 680

The problem is when I plug it in with the 2 8 pin connectors, the fans spin but no display. There seems to be 5 leds on the top of the gpu but only two are on (the first 2 from the right) and I read somewhere that it could be a voltage problem. But I'm not so sure since the psu works perfectly fine with my old 680 which uses 2 6 pin connectors

If anyone has ideas please speak out

I've tried putting it in a different pc by still the same psu since the different one didn't have any 8 pins but that didn't work

I tried erasing my previous Nvidia drivers
I've tried rewiring everything

My specs :

I7 2600k
18gb of ram
Gtx 680 (780 ti to be if it works)
Reply to ledesmacody
5 answers Last reply
More about gtx 780 classified display
  1. What PSU?
    Reply to RobCrezz
  2. CORSAIR CX 750m
    Reply to ledesmacody
  3. The CX 750m has the right cables, 2x 6+2 pcie cables. Dont try and use the fixed 8 pin cables, they are not for graphics cards.
    Reply to RobCrezz
  4. I didn't try using that, I plugged it in properly but it doesn't seem to show any display
    Reply to ledesmacody
  5. So you used two of the 6+2 pcie power cables, and it didnt work in both systems?

    sounds like the graphics card is faulty.
    Reply to RobCrezz
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