Will PCIe x1 x4 cards work in x16 slot?

The GPU fan doesn't spin up indicating no power to the PCIe slots I have a feeling that the fan connections didn't short themselves and that

So if you think you are short of PCI-e slots, you may not be A shorter PCIe card works fine in a longer slot On PCIe X1, X4 and X16 slots

short pcie slot The short answer is: 'PCIe x1' connections have one data lane; 'PCIe x4 Notice 'SLOT 13' are PCIe x16 slots but only Slot 3 has an x8 connection

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