how many pcie x16 slots do i need

How do I view empty PCI or PCIe slot information? Need to check if server has PCI card & slots available to support new hardware Need to know if the currently installed PCI card and the available slots can accommodate new hardware requirements or not.

I/O slot options The HP Z840 provides a total of up to seven high-performance graphics and I/O slots, including support for up to three PCIe 3.0 graphics cards in PCIe 3.0 x16 slots.

So as alluded to earlier, to add more M.2 slots to your motherboard, you will need to purchase an M.2 PCIe expansion card. ... But first check for how many M.2 Slots do motherboards have.

Maximum RAM: Up to 768GB (24 DIMM slots): 4GB/8GB/16GB/32GB. I/O slots. 2 CPUs, 3 slots. Slot 1: Half length, half height – PCIe 3.0 x16 (x16 connector) Slot 2 ...