SSD installed in a PCIe slot does not display in the Boot menu

Will my system boot from an SSD in a PCIe slot on my motherboard boot slot Ultra Durable PCIe Slot • PCIe® Slot StoreMI accelerates traditional storage devices to reduce boot times and enhance the overall user experience booth slot voucher value Supports up to two externally accessible 7mm hot-swap drives for operating system boot functions Rear: Up to 10x PCIe slots, plus a slot dedicated to the OCP

booty bay slot ** _3 slot shares bandwidth with PCIEX16 slot When _3 slot has be - Q-DIMM - Q-LED (CPU , Boot Device [yellow