MSI calls gt780 a "sound machine" but it has bad dpc latency and ground loop

Good quality sound on a laptop is governed by two things, freedom from ground loops and low DPC latency.
Ground Loop Hum: this occurs when manufacturers use poorly isolated power supplies (CHEAP POWER SUPPLIES). How it manifests is when you plug your laptop into an external sound production system (Stereo or headphones or mixer, etc). Well when you turn up the volume you will notice this weird humming/slightly screetching noise. It often will change pitch as you move mouse etc. Its a ground loop. It comes from poor isolation and ALL PROFESSIONAL audio equipment is designed to eliminate this. Even a cheap ghettoblaster is But not this "sound specialized laptop." Aweful. You will know it is a ground loop because when you hear the noise unplug th epower supply to the laptop and Poof! its gone.
DPC Latency Where as ground loops will just give you poor sound output, DPC latency is a far more sinister problem for a person who is going to use a computer for professional sound. It is related to something called an IRQ request and it occurs on laptops that are not designed to prioritize audio.
Download this tool and run it on your gt780. http://www.thesycon.de/deu/latency_check.shtml You will note its mostly green but occasionally it will have red spikes. Those red spikes represent audio drop outs so if your hope was to use this computer for professional sound capture or production (protools, abletone, cuebase). Think again. Those will be big "POP!!!!!"s when they occur during actual audio manipulation.
Sometimes manufacturers release firmware or drivers that help with DPC. Lets pray but as for the ground loop. That is not and will not go away unless they get it their hearts to use a proper power supply. Shame on you msi for touting this as an audio laptop when its audio simply sucks crap. Basically you threw a few loud speakers and you call it made for sound??? HARDLY.
Other then that its fast. What a waste...

Ok, I have found out the "sleep mode" kicking in was one of the major culprits. I dissabled that and latencies are a lot better. No red spikes in over ten minute but not yet under any load. If any one else is trying the program please post your results.

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MSI calls gt780 a "sound machine" but it has bad dpc latency and ground loop

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