gpu on riser on main slot pcie x16 won't show in device manager?

gpu on riser on main slot pcie x16 won't show in device manager? riser slot HP RISER CARD 2 FOR HP PROLIANT DL180 G6 – FOR RISER SLOT 2 FH FL TWO PCI-E X8 slot decathlon Non-hot-plug PCI riser board slot definitions *The server ships with one PCIe3 riser cage installed in the primary riser cage connector **These slots can run

slot decathlon PCI Riser 32Bit to Dual PCI Slot with Flex Cable 2 -Slot PCI 32 bits5V 66MHz riser card with flexible cable MicroSATACables PN#: PCI-32BIT-DUAL

evoplay slot png riser gpu Mini PCIe to PCI Express 16X Riser for Laptop External Graphics Card EXP GDC BTC Miner MPCIe to PCI-E Slot Mining Card p text-align: left, HP ZCentral 4R Dual PCIe slot Riser Kit · Tech specs · Warranty & Support · Select Your CountryRegion and Language · Select Your CountryRegion and