PC boots in windows but with no video signal

[GregTheChief]

Hey there

 

So i recently build my pc, almost new, together.

(New Motherboard, Cpu, Watercooling)

And wimdows 10 often boots normaly.

But sometimes when i start my pc, the PC boots in Windows but gives no signal to the Monitor. 

( i know that win10 boots up because the speakers give me a noise when steam has some news for me)

 

Or pc starts, al lights glow up and fans spin, QLED runs through all codes till AO (thats the code when my pc is normaly in windows)

But there is too no signal.

 

So what is happening here?

 

My rig:

 

Windows 10 on older SSD

2 HDDS

Asus MAXIMUS X FORMULA

I7 8700K

EVGA GTX 1080TI SSC

16 GB DDR4 TRIDENT Z RGB

and everything is cooled with custom hard tube cooling. 

Temps on all parts are chillin cool.

 

After some restarts the windows recovery help tool starts and says that there is a startup problem. When it trys to fix it, it says it failed  to repair it and safes some logfile in windows. When i then just tap on "continue with win10" it sometimes continues with it. 

 

Please hep

[Snifferdog3]

So it sometimes works and sometimes doesn't? Could be your lead to the monitor, Have you tried a different lead? Also try reseting the bios to its default settings.

[GregTheChief]

2 minutes ago, Snifferdog3 said:

So it sometimes works and sometimes doesn't? Could be your lead to the monitor, Have you tried a different lead?

Yep

Hm i have to monitors plugged in with displayportcables. When plugging it in in the motherboard displayport for the iGPU it works fine

[GregTheChief]

4 minutes ago, Snifferdog3 said:

So it sometimes works and sometimes doesn't? Could be your lead to the monitor, Have you tried a different lead?

The cables are from samsung they were in the package. 

 

[Snifferdog3]

2 minutes ago, GregTheChief said:

Yep

Hm i have to monitors plugged in with displayportcables. When plugging it in in the motherboard displayport for the iGPU it works fine

Ok, have you got the correct drivers for the gpu?

[GregTheChief]

Oh and i had this strange issue, that the pc seems to turn on and boots, with my old cpu/mobo too

 

[GregTheChief]

1 minute ago, Snifferdog3 said:

Ok, have you got the correct drivers for the gpu?

Yes. Direct from geforce experience

[Snifferdog3]

Could be the GPU itself? Is it new or used?

[Snifferdog3]

Are you using 3 monitors? If you have anymore than 2 you will need a ACTIVE display port cable.

[GregTheChief]

4 minutes ago, Snifferdog3 said:

Could be the GPU itself? Is it new or used?

I bought this gpu last year brand new. But it had a strange issue a few weeks ago: it was one of those startups where i weren't sure of win10 booted. I couldnt get into win10. Only with the onboard igpu from the cpu. In win10 then, there was no driver on the nvidia gpu.. that is trange because a day before it worked fine..

[Snifferdog3]

So it will only boot when you use the iGPU and won't boot with the gpu?

[Snifferdog3]

Try taking the gpu out and firmly (not too hard ) putting it back in the slot, if it still doesn't work try putting the gpu in another PCI slot, it could be that one PCI slot that's broken on the Mobo itself.

[GregTheChief]

3 minutes ago, Snifferdog3 said:

Try taking the gpu out and firmly (not too hard ) putting it back in the slot, if it still doesn't work try putting the gpu in another PCI slot, it could be that one PCI slot that's broken on the Mobo itself.

I tried all 3 pcie ports...all the same issue

[GregTheChief]

10 minutes ago, Snifferdog3 said:

So it will only boot when you use the iGPU and won't boot with the gpu?

Not exactly. I booted from the igpu only a few times and there it worked fine. With the gpu it failed to boot correctly in ~30% of startups

[Snifferdog3]

1 minute ago, GregTheChief said:

I tried all 3 pcie ports, with all the same issue

Wow... Ok have you tried using a DVI or VGA lead instead of a DP?

[Snifferdog3]

Also try a different gpu(if u have a spare one), if it does the same on other GPUs it must be the Mobo

[GregTheChief]

1 hour ago, Snifferdog3 said:

Wow... Ok have you tried using a DVI or VGA lead instead of a DP?

Hm nope i will try hdmi today

[GregTheChief]

1 hour ago, Snifferdog3 said:

Also try a different gpu(if u have a spare one), if it does the same on other GPUs it must be the Mobo

Sadly not possible because i have no sec. Gpu

[Snifferdog3]

2 hours ago, GregTheChief said:

Hm nope i will try hdmi today

let me know if it works