I have a EVGA GTX 680 SC that has been working for the past few months without issue. I decided to reapply thermal paste and clear out any of the dust that might have accumulated. I disassembled the card without a hitch, cleaned it up, and reassembled. I then placed the card back into the motherboard but now I can't get video! Everything is receiving power, even the card (fan is spinning), but there are no POST beeps to indicate what failure could be happening...
Reseating the card (several times)
Changing the power cables for the card
Changing the card from the recommended first 16x slot to the third 16x (as stated by the manual for a single card)
Changing the card to the second 16x slot
Changing to a known working card (EVGA GTX 480)
Changing to the EVGA GTX 480 also forced me to try a different HDMI cable (because it uses full to mini-HDMI)
Pulling out the CMOS battery for 30+ minutes
The main reason I believe this is a PCI Express issue is not because none of the cards were able to show video in the different slots, but because I had a previous issue with this motherboard and the second 16x slot. I had a tri-SLI setup with 3 GTX 480s, but I found out the motherboard was seeing the third card as 1x!
I need to fix this ASAP, whether it be a fix I can implement - which would be great - or buy a new motherboard. Any help is much appreciated!
On a side note, if I were to purchase a Crosshair V Formula-Z, I wouldn't need to reinstall Windows 7 since it has the same chipset as the Crosshair V Formula?
ASUS Crosshair V Formula
Windows 7 x64
G.Skill ARES 32GB RAM
EVGA GTX 680 SC
Cooler Master Silent Pro M 1000W
CD/DVD Writer (Blu-Ray Reader)
Kingston 96GB SSD
2x 500GB Seagate Momentus XT (RAID)
2x 1TB Seagate (RAID)
More about :asus crosshair formula power display pci express issue
if you bought the same board you could say it was warranty .. swap and you should be fine.. but as far as your card.. who knows if you have a friend or another computer you can test it in i would try that. possibly rma the card