I have had some trouble with my PC, and could use some guidance as to figure out exactly what it is. I will first briefly describe what I think might be malfunctioning, then my hardware, then I will explain how it started and my troubleshooting of it, then summarise what I think I have come to.
Description of my problem:
I believe the issues most likely lies either within the motherboard, the graphics card, or within a software either within the two or on my system drive. The issue is at first my graphics crashed during gameplay, then it seems I was unable to get any good system graphics output ever again, sometimes I could not get any picture at all since the display only showed no contact, and I could never get audio from the motherboard or graphics card ever again through either HDMI or DP (I only used those two).
My hardware:
Main components:
Motherboard: https://www.asus.com/Motherboards/ROG-STRIX-Z390-F-GAMING/
CPU: https://ark.intel.com/content/www/us/en/ark/products/126686/intel-core-i7-8700-processor-12m-cache-up-to-4-60-ghz.html
RAM: https://www.hyperxgaming.com/us/memory/fury-ddr4 (2 DIMMs, 3200MHz, 8GB each)
Graphics card: https://www.asus.com/ROG-Republic-Of-Gamers/ROG-STRIX-GTX1080-A8G-GAMING/specifications/
PSU: https://www.corsair.com/eu/en/Categories/Products/Power-Supply-Units/Power-Supply-Units-Advanced/RMx-Series/p/CP-9020179-EU
Cooler: https://www.bequiet.com/en/cpucooler/1378
Case: https://www.corsair.com/eu/en/Categories/Products/Cases/Graphite-Seriesâ„¢-760T-Full-Tower-Windowed-Case/p/CC-9011073-WW
Other units:
Display: https://www.acer.com/ac/en/GB/content/predator-model/UM.HX1EE.005
OS: Windows 10 Pro (64bit)
OS drive: https://ark.intel.com/content/www/us/en/ark/products/56571/intel-ssd-320-series-80gb-2-5in-sata-3gb-s-25nm-mlc.html
Storage drive: https://bit-tech.net/reviews/tech/storage/samsung-spinpoint-f3-1tb-review/1/
Disc drive: http://www.liteonodd.com/en/dvd-internal/item/dvdinternal/ihas124.html
How it started + troubleshooting:
How it started:
I was just playing DOTA2 and I was in a match like many matches before, and it was an intense teamfight when all heroes used their powers and fought at the same time, when suddenly my screen got filled with purple box artefacts and everything on the screen froze, although I could still get audio through my headphones jack. I was not able to do anything to make anything happen on my display, so I reset the computer. When I came back into the game everything was really low resolution with low framerates, when heroes used their abilities and fought eachother the performance not just on the screen but also what I could hear through my audio jack when became super low that it was just unplayable.
Troubleshooting:
I went to the loggs (Event viewer) and found this by the time it would have happened:
First it was this:
Label: "Warning"
General: "Display driver nvlddmkm stopped responding and has successfully recovered"
Source: "Display"
Event-ID: "4101"
There was also this:
Label: "Error"
General:
"The description for event-ID 14 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
0a7c(28d4) 00000000 00000000
The message resource is present but the message was not found in the message table"
Source: "nvlddmkm"
Event-ID: "14"
So with this information I first decided something had happened with the drivers. I went and downloaded the newest drivers for my graphics card, I tested it out and still no luck, I couldn't play games due to low frame rate and bad graphics. By accident I also noticed something really weird: in the volume control I could no longer use the DP connection I had with my graphics card and my display to make the Display play audio. I rarely used to get audio from the display before, and my headphones still worked fine, but up until this point this had never been an issue. When I troubleshoot with the software it says it cant play audio cause no cable (HDMI or DP, I tried both), is connected (then how can I get a picture?), even though it is still the graphicscard's audio drivers visible as the audio type I troubleshoot.
So I try something new (and now it gets really weird again): I unplug the power to the display and plug it back in, and this time I get no picture, the display just says it gets no signal. I try to restart several times and still no signal.
Next I clear CMOS, and restart the system from there.
I plug my laptop into the display with a DP cable and have no issues getting getting both picture and audio. I plug my main computer to the TV with a HDMI cable through my graphics card and get no picture. So I plug my HDMI through my motherboards i/o and into the TV, and this time i get picture but no audio. So i plug my laptop into the TV with HDMI and get picture and audio. Now it gets weird again: I plug my DP port into my graphics card and back into the display, and this time it works! I restart both units and this time it doesn't work. I plug a HDMI into my graphics card again and into the TV and this time i get picture, but still cant get audio. So now I do this: i plug my DP connected to GPU cable into the display, HDMI through GPU into TV at the same time (this is the first time I had ever attempted two screens with this card btw, so even if it didn't work now I couldn't confirm if it would have worked before), and I turn on the system. First I get pictures for both units, but once I am a few seconds into windows the display loses contact and the TV gets filled with purple box artifacts. If I unplug both cables without turning the system of and try one with the other and even with just the motherboard I still cant get any picture from any screen. I try many different combinations like that forever, without getting any consecutive result when it works and when it doesn't, the only thing I can come up with is that I cant use two displays at the same time either through the card or backpanel, or both interfaces consecutively cause then both displays wont get signal or just one will, and once I lose signal I cant get another unless I restart the computer first. Only my main computer has this problem, not my smaller laptop, and the signals for respective display seems to work whenever they want to, there is no real trail (other then the previously mentioned) when it works and when it doesn't.
Now I take the motherboard out of the case and only plug in only the system disc and graphics card into it (RAM, cooler, CPU still attached, with PSU hooked up with all cables to all components without any case). Then it seems I manage to get picture almost anytime with both displays, but still just one at a time and no audio cause the system still says the audio cable is not connected, i try both using the graphics card and backpanel with the same results. I switch the GPU between the two other PCI-e slots with still the same results. I completely withdraw the GPU and use only the backpanel for HDMI and DP with the same results.
So now I try to run a game when I have picture, first no GPU just the backpanel to run goat simulator. Right from the menu start the entire system runs slow (not just the game, the entire computer) with low framerates and abysmal resolution, until I close the game and it returns to normal. The I run through my graphics card, I try all the PCI-e slots and nothing changes, it is still just as bad as when I run with no GPU at all. Next i try a much older card, a GPU from around 2010 with only 1GB and only VGA, and it still has the exact same results as when I run with my newer GPU and no GPU at all. I have also checked that I have the right NVIDIA drivers installed too (not that the motherboard/processor uses any NVIDIA drivers, I think).
Summary:
Through these tests I can only guess that the fault would be somewhere within the motherboard, although I cannot conclude it since unlike with the rest of the components I have no other motherboard I can test them against to see if my other components work as they should. It seems likely that the motherboard would be at fault though, with how it can never detect HDMI/DP audio no matter where the cable goes, my other displays and laptop doesn't have the same issue with each other, and changing graphic cards and slots doesn't work either.
I have reached a dead end here, and don't know what next steps to take. Is there anything I can do about this, any tweaks to the software that could solve this, or anyway to find out not just what component is faulty, but also what part of it doesn't work, and in that case how it could have come to be that way?
I would appreciate any advice you could give me.
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