Hello, I have a strange issue I cannot resolve... My EVGA GTX 570 HD DS card thinks there are two analogue displays connected to the two DVI ports, and when booting the main DVI port gets a blank signal (signal is detected by monitor but it's a black screen).
The machine boots fine, I can VNC it or use HDMI port to control it, and I ran artifact tests and benchmarks and it runs perfectly fine, it's idling at 30's C and load 58C.
When I boot the machine with ONLY HDMI connected I get a no signal all the way until the login screen where windows is set to use HDMI port. However nVidia Control Panel -> Display Manager seems to think there is two analogue displays connected (I guess to the two DVI ports) even if nothing is connected to them, and the EXACT same card I have in another machine when it's connected to HDMI will only show HDMI in display manager...
So I am inclined to think *something* is tricking the card into thinking the DVI ports are in use, and on boot it tries to output a signal to the main DVI port but it's blank and only when windows loads (and has been specifically specified to use HDMI) does the HDMI port work.
I replaced the 14pin 74AHCT08D IC (which I think multiplexes the signal to the four outputs) on the board just in case it was that, but no dice, same issue.
I'm perplexed, any suggestions?
The machine boots fine, I can VNC it or use HDMI port to control it, and I ran artifact tests and benchmarks and it runs perfectly fine, it's idling at 30's C and load 58C.
When I boot the machine with ONLY HDMI connected I get a no signal all the way until the login screen where windows is set to use HDMI port. However nVidia Control Panel -> Display Manager seems to think there is two analogue displays connected (I guess to the two DVI ports) even if nothing is connected to them, and the EXACT same card I have in another machine when it's connected to HDMI will only show HDMI in display manager...
So I am inclined to think *something* is tricking the card into thinking the DVI ports are in use, and on boot it tries to output a signal to the main DVI port but it's blank and only when windows loads (and has been specifically specified to use HDMI) does the HDMI port work.
I replaced the 14pin 74AHCT08D IC (which I think multiplexes the signal to the four outputs) on the board just in case it was that, but no dice, same issue.
I'm perplexed, any suggestions?
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