sound card dead after graphics card installation

[paparazzo79]

Hi guys.I own Z690 F Strix board in one of my PCs....everything was working fine with integrated graphics card.I turned off power from it, installed graphics card from another PC, connected all the peripheral cables, optical sound cable of course when everything was switched off.Then I powered on the machine and integrated soundcard is dead.How did this manage to happen and if there is a way to diagnose and replace damaged component?
The new pci-e soundcard costs here 80 euros which is half of money I spent on motherboard.
I still can not believe that I am such a looser and don't know how the hell could this happen.
There is no red laser light on optical output which was before.I don't know if any of ther cables shorted out the sound card,I did not drop any of the screws nor did I make shorted out contact with screwdriver or any part of the motherboard.

[rogfanther]

pictures of the board please, without the graphics card. Chances are you scratched something with the metal bracket of it when inserting into the case.

[paparazzo79]

pictures of the board please, without the graphics card. Chances are you scratched something with the metal bracket of it when inserting into the case.

I don't have high quality camera...what particular region you are interested in?
The only thing I could scratch is left edge of the board with graphics card bracket.
it's night.I will have better shots tomorrow at daylight.

[paparazzo79]

Here are the shots:

[paparazzo79]

Could this be the possible cause?
The MoBo IO was touching metal part of the PC chasis where PCI brackets are.

[paparazzo79]

So cheking the above picture makes me think that metal backplate of graphics card touched the components on the motherboard and shorted them out.
look at the left edge of the graphics card.
Missing component?

[paparazzo79]

I have thermal camera on phone.

[R_J]

I found this video ASUS ROG STRIX Z690-F GAMING WIFI + 12900K | PC Build - YouTube and it seems that ic imay not be installed on this board
There is a 0Ω resistor in that circuit, check that it is not open.

[paparazzo79]

Where is that resistor?
and how do I check it with multimeter for short?
This? There are 2 of them.

[paparazzo79]

I think I found.
there is missing component here?

[rogfanther]

Clear from dust, and also inspect the region around that screw , beside the yellow caps.

[petehall347]

remove graphics card .then see if sound works again

[paparazzo79]

PU4510 mark...its a transistor, should be there?

[paparazzo79]

I found this video ASUS ROG STRIX Z690-F GAMING WIFI + 12900K | PC Build - YouTube and it seems that ic imay not be installed on this board
There is a 0Ω resistor in that circuit, check that it is not open.

I measured 0.6 ohm each.

[paparazzo79]

So before installing the GPU, I wanted to connect one more fan to its fan controller, and by mistake, I connected the fan controller instead to fan header on controller I connected it to connector named MB Sync, and I manage to do that because connectors are the same.
Each connector on fan controller is proprietary.
I then turned on PC, the rgb on fans light for split second and fan spinned for split second.
Then I turned off the PC immediately because I thought something ain't okay.
I did this twice (powered on the PC).
No connectors were connected to MoBo not fans not fan controller because fans were getting power and RGB through controller.
Controller name is MS Impero P500.
So I ask you, could this be possible cause of damaging MoBo?

[paparazzo79]

If I could only get schematics for this board.
what is the chance that some of the components is knocked out of the board while installing graphics card?

[SMDFlea]

Theres a boardview for the Z690 prime https://www.badcaps.net/forum/troubl...e-z690-a-wi-fi

[paparazzo79]

I found picture that I took immediately after graphics card installation,so I figured out I will post it here, if anyone can find something interesting that could be the cause of onboard sound card failure.
What am I particulary interested is region marked with red, now I am not so sure but what if it is possible there that graphics card touched the motherboard,componens there?
There is mosfet driver there and some caps.
I can picture that region too.