Delta Virtual Airlines Water Cooler - Automatic Switching GPU on Sim Load

Delta Virtual Airlines Water Cooler | PC Support | Automatic Switching GPU on Sim Load

DVA7963
Captain, B737-800

Joined on November 14 2009
50 State Club
Triple Century Club
Empresario 100 Club
DVA Fifteen-Year Anniversary

"Fly Like an eagle!"
Oklahoma City, OK USA

356 legs, 814.5 hours
2 legs, 4.0 hours online
355 legs, 813.1 hours ACARS
CURRENTLY LOGGED IN

Posted onPost created on January 01 2026 13:40 ET by Doyle Edwards

I cannot figure out how to make windows switch to the built in NVidia GPU on loading P3D v5. When I load up X-Plane 12 it happens all the time. Does anyone know how to get P3D v5 switched over to the Nvifia GPU? I am have Orbx base pack and North American LC installed.

It's a Nvidia RTX 5070 8GB GDDR7 discrete GPU. It feels like it's running on the AMD Ryzen 9 9955JX's on cpu dye integrated AMD Radeon 512mb GPU.

Other successful game launches on the NVidia RTX 5070 are Elite Dangerous, Need for Speed Payback/Heat/Hor Pursuit Remastered/Most wanted 2012/Rivals and others.

DVA043
Senior Captain, MD-11
Diamond
OLP

Joined on June 10 2001
Event Half Century Club
Online Double Century Club
50 State Club
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Four Million Mile Club

"Col. Panic"
Marietta, GA

2,380 legs, 9,637.2 hours
240 legs, 553.9 hours online
2,038 legs, 8,430.3 hours ACARS
75 legs, 196.3 hours event
2,416 legs, 9,772.1 hours total
91 legs dispatched, 66.4 hours

Posted onPost created on January 05 2026 19:05 ET by Luke Kolin

In the graphics settings you should be able to specify which GPU to use? I don't understand the "switching" business - is this a laptop? If not, your screen should be connected to the video card you wish to use.

Cheers

Luke Kolin

Senior Captain, MD-11

Posted onPost created on January 15 2026 16:40 ET by Doyle Edwards

Luke Kolin wrote:

In the graphics settings you should be able to specify which GPU to use? I don't understand the "switching" business - is this a laptop? If not, your screen should be connected to the video card you wish to use.

Cheers

It's a MUX switch.

It is a switch which disables one component in a multi-component system. In the case of a laptop is disables the integrated (CPU) graphics chip so software will recognize only the discreet (Nvidia or Radeon) graphics chip. Laptops designs typically deploy a software based switch instead of a physical switch, which is why you have to set the Mux setting in the laptop BIOS or in whatever performance software the manufacturer has installed in Windows.

Disabling the integrated graphics saves battery power and forces games and apps to use only the discreet and often better graphics chip so performance is improved.

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