PC boot without display card fully running?

[jasonycw]

Hi guys, recently, I start having a strange issue with my PC.

 

During boot up, there is no bios loading screen on my monitor and the PC boot into Windows normally but just without display being detected.

 

Mouse and keyboard are working fine and I can login to Window. The only thing not working is my monitor.

 

I use my notebook to remote control the PC and it shows that the display are set to 800x600(like no monitor being connected) and in GPU-Z, it is default to show my intel graphic but not my GTX 780.

 

I can switch to my GPU in the bottom of GPU-Z and it shows it as a TITAN...

 

Here are the screen shot from GPU-Z

 

 

And it is also showing GTX Titan in device manager

 

 

BUT!

This is not happening constantly, after I turn off my PC and restart again, the GPU is detected properly and both my monitor can work again. It is about 50% of my boot up become not this and 50% of my boot is completely normal...

 

Here are the GPU-Z screen shot when I can boot up normally

 

Anyone have an idea about what is wrong with my PC? I had tried google it but do not know what to search for and seems nothing was found similar.

 

My Geforce driver is 355.60

 

[jasonycw]

Here are more info from CPU-Z

[Dabombinable]

That seems like a driver problem-my older GPU get it all the time (when I have them installed in a rig that is).

[blackmalicious]

Hmm..uninstall the driver and try again?

 

Link:http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

[jasonycw]

Hmm..uninstall the driver and try again?

 

Link:http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

I tried and not working.

 

After reinstall the driver, I cannot even boot the display.

 

Today, I boot up my computer by removing my display port monitor and allow my dvi display turn on and get to the Windows's login screen first.

Then I plugin my display port monitor to enable dual monitor again.

 

Maybe there is some problem with display port???

[rhyseyness]

I tried and not working.

 

After reinstall the driver, I cannot even boot the display.

 

Today, I boot up my computer by removing my display port monitor and allow my dvi display turn on and get to the Windows's login screen first.

Then I plugin my display port monitor to enable dual monitor again.

 

Maybe there is some problem with display port???

Disable integrated graphics in the BOIS?

[jasonycw]

Disable integrated graphics in the BOIS?

I don't think I can turn off integrated graphic in BIOS. 

When I can boot up with my monitor, my GTX780 can properly detected and no integrated graphic is detected.

[jasonycw]

I have been suffering worse issue lately and really want some help.

 

The closest thing I can found on internet is from this thread where there is also not follow up answer.

http://www.overclock.net/t/1289791/msi-z77a-g45-disables-graphics-card

 

It mentioned that it maybe a motherboard issue but I had tried using my old display card (HD7850) and it works

 

With the HD7850 installed on my motherboard and connect to one older monitor with DVI cable, I can boot up with my GPU detected properly.

 

While I just change to only using my GTX780 with everything else the same, the GPU is not detected properly.

 

I suspected that it may be a PSU or GPU issue. Anyone can help?

 

Edited/Update:

I think it maybe a PSU issue, I tried bootup my computer and let it run with motherboard display output for a while first (about 30 minutes) then I restart my computer and it properly load up my 780 and run normally.

 

Will this because of the PSU condition being dropped and become unreliable? Anyway for a normal dude to test it without special equipment?