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‎07-09-2025 11:09 PM

HP Recommended
Operating System: Microsoft Windows 11

Hey Guys,  I got my GTX SLI working in my HP Z840. You see the 2 Graphics card have to be in Slot 1 (CPU 0), and Slot 6 (CPU 0).. Both video cards are Nvidia GeForce GTX Titan X 12GB GDDR5... You see if you put the second card in slot 4 (CPU 1) it won't work.. But if you hookup your monitor to that card you will still get a picture,  in slot 4, I have put my HP Turbo Quad card in that slot... 

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‎07-09-2025 11:11 PM

HP Recommended

Oops I mean slot 2 not slot 1.. That's my boot slot card installed there..

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‎07-10-2025 04:51 AM - edited ‎07-10-2025 04:56 AM

HP Recommended

HP only licensed a subset of nVidia's SLI technology for the z840 as such only the listed HP approved card models could enable SLI if you do indeed have titan gpu's in sli could you post a screen shot of the SLI ctrl panel and the driver/nvidia ctrl panel versions you used

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