Parallax5290

the RTX 3000 should work as the P4000 on the M6600 (it will only work on the external Monitor) as the internal is always attached to the Intel 3000.If you turn off Optimus the Laptop will not boot at all and the only way to turn Optimus back on is to put an older NVIDIA GPU (Kepler) to turn it back on. The P4000 will work fine on My M6800 with LDVS using Optimus. Where did get you get that RTX 3000? The ones I had seen on Ebay will not fit as the screws are in the different position as the M6800 Heatsyncs (both AMD and NVIDIA). PS> I tried the Registry entries that you recommended to no avail on the M6600. I ended using the P4000 on my M6800 and put the P3000 that I was using on the M6800 on the M6600 with exactly the same results.

Just wanted to post an Update, since I am in the same situation. On the M6600 the card will change form 10DE 1BB8 15CD 1028 to 10DE 1BB7 14A1 1028 for some reason, after modifying the driver nvdmig.inf the driver will install. you will be able to see both cards installed. However they have their own discrete outputs, the intel card will have the internal and external monitors and a "Phantom monitor will be on the P4000". The only workaround I found is to disable the Intel video card on device manager and you will able to use the external monitor (HDMI in my case) with P4000 for games. if you want to use it on the internal display you will have to use mirror displays instead on Extended. I am still playing with Nvidia settings on the control pannel to see if I can modify the display settings for the Phantom Display. Just in case anybody is in the same situation on 2024