Failure to get display output after trying to change GPU configuration on T7910

I managed to get the original configuration working by clearing the bios. I am still not sure what caused the original issue.

@pokepoke111​ Did you clear the bios by using the jumper method, or just removing the battery for a while?  I'm having a similar issue but just taking the coin battery out for an hour didn't resolve so I'm thinking about trying the reset cmos jumper.

@spiderhole​ I used the jumper method. It was very straight forward and clear that it worked. After switching the jumpers, when you plug the computer in the system won't show any indication that it is receiving power. In my case, normally the fans rev when power is plugged in, but the fans don't rev when it is resetting the CMOS. After waiting for the given time, I removed power and set the jumpers back and the system booted into bios without issue.

@pokepoke111​ Thanks for the reply!  I will try that next since everything else so far has been a dead end.  I'm also curious, did you have to wait a period on the first power up after resetting the cmos where the screen was blank or bios showed a memory configuring message?  That was someone else's theory why after changing the cmos battery my system just sits with no display or power to keyboard but has a solid white power button.  

@spiderhole​ Honestly, I don't remember that well how long it took, but I do remember that rebooted itself once while I assume it was checking the configuration. From what I have seen with my system, if it is not posting and just sitting with a black screen while powered on, that is an indication of some invalid configuration. I am still waiting on a serial cable to ship so that I can troubleshoot mine further.

@pokepoke111​  I've ordered a Quadro K600 card off ebay to see if a more basic graphics card might due the trick.  Stay tuned!