Originally Posted by dpresley
My conclusion so far is that two sampling rates causes the cracks and pops. These are hear via headphones or speakers with the Moti4.
Sorry about bringing up the subject again since you mentioned that you were sending the computer back, but my curiosity is getting the best of me.

I was wondering if you had disabled the computer motherboard's on-board sound chip (probably Realtek) in the bios settings?