No, the last motherboard that I repaired had nand gates to reset the memory. An Opus, I think it was.
I might however tack a few wires to the SPDIF digital audio connector pins on the board. Scope them, before connecting anything. It's the last shot really....oh, except the MS trouble shooting. I'll try that when sober.
The gizmo worked for about 10 mins, then there was a
CLICK , followed by a total shut down.
You can see why I think I'm jinxed. But I beat the system. See JB.
The chokes and things are probably the CPU power supply regulator.
As I watched my silent movie, I did come to the same conclusion.
I plugged the device in again after the film and it worked. However, the sound was scratchy just as before. On the laptop it was as good as it gets on small speakers.