I have an EVGA Nu Audio sound card that is not working properly and I need some help diagnosing the fault (preferably by someone who owns this card and is willing to take some measurements).
The card sort of powers up (LED lights are coming on and the relais is clicking, some voltages are present) but it is not detected in Windows. I tried installing in two different PCs and tried several driver versions but the card was never detected anyway. So I thought this is probably not a driver / software-issue and then disassembled the card to take some measurements.
I found there seems to be a dead short (0 Ohm) which can be measured across several components on the board. Unfortunately all affected components go to vias and I can´t figure out if they all connect to the same IC or not. I also tried to inject voltage (1 V / 3 A) but I couldn´t find any heat spots, even though I do have a thermal camera. So now I am not sure where to go from here and I don´t want to randomly take off components until I find the faulty one.
I attached a picture with markings of all components that appear to be shorted out. My hope is that someone on this forum owns this card as well and is able to point me in the right direction. Only other chance would be to buy another one and compare myself but they are sort of rare to find these days, at least for a reasonable price...
The card sort of powers up (LED lights are coming on and the relais is clicking, some voltages are present) but it is not detected in Windows. I tried installing in two different PCs and tried several driver versions but the card was never detected anyway. So I thought this is probably not a driver / software-issue and then disassembled the card to take some measurements.
I found there seems to be a dead short (0 Ohm) which can be measured across several components on the board. Unfortunately all affected components go to vias and I can´t figure out if they all connect to the same IC or not. I also tried to inject voltage (1 V / 3 A) but I couldn´t find any heat spots, even though I do have a thermal camera. So now I am not sure where to go from here and I don´t want to randomly take off components until I find the faulty one.
I attached a picture with markings of all components that appear to be shorted out. My hope is that someone on this forum owns this card as well and is able to point me in the right direction. Only other chance would be to buy another one and compare myself but they are sort of rare to find these days, at least for a reasonable price...
