My rig is in my signature. I finally decided to make a jump and get a high end GPU for once in my lifetime, Inno3D Twin2x GTX1080. Buuuut it does not work. No picture at all, the computer is not posting. I swap between GTX770 and the new GTX1080 and former keeps on working but 1080 is black screen. Same PCIe port, same power cables (modular 6+2 configuration, no dedicated 6 pin cables in my 750W OCZ powersupply but two pins on one side are clip-ons). To rule out possible HDMI port problem I left it on for couple of minutes to see if Windows was opening underneath and then turned the power off to see if it begins the few seconds long shutdown procedure but no, it turns off on the spot so obviously the computer does not even POST. The second PCIe port shows no results either. Disabled my CPU overclocks and underclocked my RAM, nothing.
I even tried turning it on WITHOUT power cables which in my GTX770 immidietly shows a warning in the screen telling me to turn off and plug in the power cables. GTX1080 does no such thing, just black screen as before.
The TV does react whenever there is power however. When I disconnect the HDMI cable it shows the typical no signal thingy, but when I connect it back to the card it tells me its receiving 1080p signal, even if there is nothing there.
Did I just have a shit luck and get a faulty GTX1080, or could there be a compability problem with my Asus P67 Sabertooth motherboard? It does have the latest BIOS, which is not much since the last update was on 2012 or something but Pascal should be backwards compatible to PCIe 2.0 and people have been installing them on Sandy/Ivy Bridge machines succesfully from what I know.
I even tried turning it on WITHOUT power cables which in my GTX770 immidietly shows a warning in the screen telling me to turn off and plug in the power cables. GTX1080 does no such thing, just black screen as before.
The TV does react whenever there is power however. When I disconnect the HDMI cable it shows the typical no signal thingy, but when I connect it back to the card it tells me its receiving 1080p signal, even if there is nothing there.
Did I just have a shit luck and get a faulty GTX1080, or could there be a compability problem with my Asus P67 Sabertooth motherboard? It does have the latest BIOS, which is not much since the last update was on 2012 or something but Pascal should be backwards compatible to PCIe 2.0 and people have been installing them on Sandy/Ivy Bridge machines succesfully from what I know.