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Cannot enter BIOS. Cannot see boot screen. Asus P9X79 Pro

Last response: in Motherboards
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May 18, 2013 2:00:54 AM

Begining of my issue is here
http://www.tomshardware.co.uk/forum/id-1678670/asus-p9x...

Now I partly solved problem.
Stuck on the point: I can boot into OS but cannot enter BIOS.

I think actually when I press F1, BIOS opens but video card doesn't support video mode or something. So black screen. Comp is responding on ctrl-alt-del, i think the problem is in video part.

There're 2 different hdmi ports on my video card.
I'm gonna buy adapter for another port to test with it.
All ideas for now...

Best solution

a c 558 V Motherboard
a c 150 Ĉ ASUS
a b U Graphics card
May 18, 2013 3:02:29 AM

It might be a resolution issue related to the HDMI port, so yes, try a different port (VGA or DVI if available)
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May 18, 2013 4:14:53 AM

OK, guys. I solved the issue!
I connected my monitor to the hdmi port on the videocard using adapter.
And it was the case. It works now. Now I can see ASUS logo and BIOS setup interface.

I couldn't image that main dvi port would not fully work, instead hdmi port would.
Not logical. But anyway i'm happy ;) 
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May 19, 2013 1:30:39 AM

Actually issue is not solved completely.
Now my monitor is plugged into hdmi-port of the videocard via adapter.
And signal tends to get lost from time to time. Interesting thing that it can appear again in some seconds or sometimes in several minutes. This happens in BIOS mode as well as in Windows.
Reset doesn't make sence at all. Even standing offline all the night with power turned off on PSU.
Several resets soemtimes work.

If I plug monitor in DVI-port, the signal is stable. But monitor is black till OS begins to load.
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a c 558 V Motherboard
a c 150 Ĉ ASUS
a b U Graphics card
May 19, 2013 2:01:27 AM

Can you test a different monitor?
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May 19, 2013 2:54:35 AM

I'll try to find such oportunity.
But monitor works fine when plugged into dvi.

By the way, i cleaned PSU and nothing changed. Anyway i got to do it even earlier ;) 
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a c 558 V Motherboard
a c 150 Ĉ ASUS
a b U Graphics card
May 19, 2013 3:14:54 AM

The DVI should work in BIOS too.
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May 19, 2013 3:40:38 AM

I agree :)  but it doesn't
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July 30, 2013 2:35:50 AM

I had the same problem. Here is the fix if you are with HDMI connected to the TV
I gues you are trying to connect the TV/Monitor with external video card in the PEG slot and not the Motherboard video adapter.

Here is the solution if so:
Go to BIOS Setings > Advanced BIOS Features > Onboard VGA > Select: Enable If No Ext Peg (Disable onboard GPU If GPU Exists In The PEG Slot)

Save & Exit and it`s done ;) 
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!