Now I get it. How I know, you need modified bios or drivers for videocard. Also, can you make screenshot for proofing?When I start the iMac it powers on.
But I get no screen on the iMac.
When I connect my Thunderbolt Display
Into the iMac I get a screen but only on the
The screen of the iMac is black.
It also doesn't recognize the iMac screen
in the settings.
People have asked users that have the 675/680 GPUs to use the firmware dump tool to extract it so that it can be used to flash other cards, but as far as I know this has been unsuccessful with the late 2012 iMac for some reason.hmmm.but in the new imacs there are some which provide this card so there must be a firmware..where can i get this...?
What if you could get the bios from the GTX 680MX of a 2012 iMac and flash it onto the GTX 675MX? That might workHi.
Just put a GTX 675MX in my Imac 2011.
When i powered up the Display doesn't show anything.
When the Thunderbolt Display is Connected the Desktop
of the Thunderbolt is shown up.
So what is wrong here?