What would happen if you plugged a PCIe riser into a PCI slot If that

Product Naming Convention - Riser Cards riser slot The PCIe riser that installs in PCIe slots 3 and 4 is different than the risers in PCIe slots 1 and 2 The riser for slots 3 and 4 supports an mezzanine joker poker slot PCIe risers are simply an extension of the PCIe slots Risers allow for a different orientation and placement of GPUs other than the PCIe slot

pvz slot machine 2 layer PCB bard designing 1-slot PCI-E 1X to 3 slot 1X riser card with high speed USB cable High speed USB shield cable is flexible for 1U,2U,3U