M17x R2 audio issues with GTX 770m

[StripeySnake]

Working more on the M17x R2, I recently attempted a GPU upgrade from 660m > 770m. The 770 is much stronger and actually fits the heatsink. It cools itself well and native fan curve seem so to work. However, unless I disable HD audio in bios, the laptop screen ends up locked at one color immediately after windows boot. While disabling audio completely fixes this, I need the audio to work. Anyone have any ideas? I've considered a USB audio card, but I only want to try one If I know I can't get the internal one running, as well as I know that that will actually work.

[StripeySnake]

UPDATE:
I figured out exactly what causes the issue, the 7-800 series cards use a wierd "hybrid vbios" That causes them to take up extra/different pcie lanes. Unfortunately, the sound card occupies one of those pcie lanes, so if both components are running at the same time they CAN NOT coexist. However, a cheap express card sound card I got on Ebay for $30 USD allows sound to be restored, while driving the 770m, which is also cooled properly in the R2 chassis without a shim.

[ssj92]

On 6/14/2022 at 10:25 AM, StripeySnake said:

UPDATE:
I figured out exactly what causes the issue, the 7-800 series cards use a wierd "hybrid vbios" That causes them to take up extra/different pcie lanes. Unfortunately, the sound card occupies one of those pcie lanes, so if both components are running at the same time they CAN NOT coexist. However, a cheap express card sound card I got on Ebay for $30 USD allows sound to be restored, while driving the 770m, which is also cooled properly in the R2 chassis without a shim.

I think there was a post on NBR that talked about drivers without IRQ issues. Idk where it went, somewhere on the archive. It may help solve these sound issues. 

[Maxware79]

There was a fix on TechInferno for this issue with the M17x R3. There were a number of steps to do in the right order to get it working again

 

Can't seem to find the thread right now