MSI Z270 Gaming 5 display port troubles

[kayakxtreme]

Hi all!
I just purchased the MSI Z270 Gaming 5 motherboard today. Got it home, opened the box, installed the proc, memory and proceeded to test for post. Everything went well with the test and away I went with the install.
Got it in the case cooler hooked up managed the cables and installed the GPU. During the post I set the memory profile. I hooked up the monitor and pushed the power button. Fans whirled on and lights lit up. Its alive!!! kind of :-(
As I sat watching the debug lights I noticed the monitor came on but no display only a black screen. Code 64 sat on the debug display and the GPU light was lit up on the debug lights on the side. I turned off the computer and restarted it. Same thing again. I shut it back off and noticed that the debug display on the bottom would not go off. It sat at 00. I turned off the power supply and it went off. turned it back on and 00 again. I decided to remove the gpu and as soon as I unplugged the display port cable the 00 went out. I removed the gpu and used the onboard graphics again. Everything went fine. got into bios and into windows. I reinstalled the gpu and as soon as I plugged in the display port cable the 00 popped back up. tried to boot but still no post same as before. I decided to try an hdmi cable and it works fine. computer booted right up. I tried the display port cable again and again no post. I decided to retry the old system thinking I might have damaged something in the switch. It fired up just fine on the display port. back to the new system and still no post. I have never come across anything like this before. Am I missing something? Any help would be appreciated. BTW I have tried different display port cables and I have plugged it in while the computer was already on using the hdmi. The computer thinks I have plugged in another monitor but works on the display port. This is so strange. Thanks in advance!

System Specs
i5 7600k
MSI Z270 Gaming 5 mother board
Corsair Vengance LED 16GB 3000 Mhz DDR4
Asus Strix GTX 1070
Samsung 850 EVO 512GB
2 - Samsung M.2 512GB NVME
Custom water cooling on cpu and gpu
Corsair RM 650
Inwin 805 case

Thanks,

Tom

 

[Paul NZ]

Did you plug the monitor into the GPU? It'll disable onboard video when you install the GPU

If youre plugging the monitor's displayport into onboard it wont work when the GPU is installed

 

[kayakxtreme]

Yes I plugged the monitor into the GPU. I only used the on board graphics for testing purposes. I used the display port on the on board to make sure the cable was still good. I then turned off the system and moved the cable to the gpu. I restarted the system and it would not post if using the display port.

 

[Paul NZ]

Does the GPU need power?

 

[kayakxtreme]

Yes and it is plugged in. Everything works fine if I use hdmi just not display port. I have since tried keeping monitor plugged in until about half way through the boot up process. as soon as the mouse and keyboard are activated I can plug in the display port and everything works fine. I can do a warm restart and it all works but f I turn it off and do a cold boot it stops again. 2 different monitors now and 3 different display port cables.

 

[Paul NZ]

Oh wait maybe you have to enable the DP in Nvidia control panel / or its settings?

 

[kayakxtreme]

No it its enabled

 

[kayakxtreme]

Anyone????

 

[Jacob wiggins]

I have the same board and same problem, did anyone find a fix?