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Amazon.com: 2GB HP nVIDIA GeForce GT730 Gfx PCI-E x8 DVI DisplayPort Graphics Card N3R90AA : Electronics
GPU running at x8 PCI-e instead of x16. GPU is seated in the 1st slot, tried seating in 2nd slot, then its running at 4x. Tried reinstalling drivers, tried adjusting some settings
New GT210 PCIE X1 1GB Support PCIE X4 / X8 / X16 Graphics Slot Video Card GPU | eBay