I bought a 5820 in February and on day 1 reported that the audio through HDMI was popping and spent 2 hours with an "engineer" who remotely explored the machine, toggling random settings off and on and generally showing no knowledge of what to do - he concluded by offering me a refund. 

I then added a Dell soundbar and it was exactly the same, but this time via the USB out. 

They decided it needed a new motherboard, and after a while when I wasn't free to let the engineer in, eventually a new motherboard was fitted. 

It took a week of running badly (program crashes and running slowly) before it finally wouldn't boot up. 

The telephone "engineer" asked me if I could access the BIOS, which I couldn't, so he concluded I needed a new HDD. At that stage I had no desire to inform him any different to what he thought. I thought that I'd just wait and speak to the engineer who turns up and he'd be able to see what's happening himself. 

The engineer turned up and after we discussed it and he saw that it was nothing to do with the HD, he went ahead and reinstalled the OS anyway, wiping my systems drive that I hadn't backed up - shame on me. Losing the programs I'd set up etc was a huge blow - one took me a month to set up. 

So of course the machine was now kaput, unable to update itself or stay online via wired connection. 

After another engineer came and fitted another motherboard, which was DOA, they agreed to replace my machine and another month passed before I received the replacement. 

After all that, the problem is EXACTLY the same. New machine - same issue - pop pop pop. 

Anyone else notice this, or am I the very lucky one? 

Sup, Dell?