Question Why is my Valve Index lagging after upgrading my GPU to an RTX 3070?

alexbarrett414

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Aug 12, 2017
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My girlfriend recently upgraded her MSI GTX 1660 SUPER to an Aorus RTX 3070 Master Rev 2.0. For some reason after upgrading the card, she's noticed white artifacts (which have recently been fixed) and a severe drop in frames whenever she moves her head. I looked around online and saw that a year ago, the RTX 3070 had issues with PCIe Gen 4 lanes and that Gen 3 would resolve the issue. She's already tried the following:
  • Reinstalled Nvidia Drivers and attempted to use older versions
  • Opted in and out of SteamVR beta (now currently using most recent release as of this post)
  • Swapped display ports on GPU
  • Changed refresh rate and resolution in the headset
  • Removed cable extension for the HMD
Prior to upgrading the GPU, there were no issues and it was swapped only last night, so it shouldn't be the Index's cable itself. Her motherboard's BIOS is already updated to the latest revision.

Full Specs:
  • Ryzen 3600
  • Aorus RTX 3070 Master 8GB Windforce (3x fans)
  • 4x8GB (32GB) Corsair Vengeance DDR4
  • 1TB Samsung SSD
  • NZXT Kraken X62
 

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