I do not know why graphic card not working on PCIe 2.0 recent driver? You can check the status through GPU-Z, that is under the Bus interface. Similar result can also be observed for Sandra and HWiNFO32. For your information before you give any reply:
1. This is affecting most of the X38 and X48 boards and few of the Pxx and X58 boards
2. This is not because of the power saving on the affected board.
3. If need you can test and take the GPU-Z’s reading which is under the load.
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