I have a Gigabyte h97-d3h https://www.gigabyte.com/Motherboard/GA-H97-D3H-rev-10#sp and found the hard way that the m.2 on board slot, runs only at pcie 2.0 x2 speed bottlenecking my Samsung PM981. Question is now if I buy a Pcie adapter card, do I still have enough pci lanes for it to run at x4? I only have 1 pcie 3.0 x16 slot, the other is pcie 2.0 x4 from what the specs state. Am I doomed? Don't have money to buy a new motherboard, cpu and ram
- 1 x PCI Express x16 slot, running at x16 (PCIEX16)
(The PCIEX16 slot conforms to PCI Express 3.0 standard.)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
- 1 x PCI Express x16 slot, running at x4 (PCIEX4)
- The PCIEX4 slot shares bandwidth with all PCI Express x1 slots. All PCI Express x1 slots will become unavailable when a PCIe x4 expansion card is installed.
- When installing a x8 or above card in the PCIEX4 slot, make sure to set PCIE Slot Configuration in BIOS Setup to x4. (Refer to Chapter 2, "BIOS Setup," "Peripherals," for more information.)
- 2 x PCI Express x1 slots
(The PCIEX4 and the PCI Express x1 slots conform to PCI Express 2.0 standard.)
- 3 x PCI slots
- 1 x M.2 PCIe connector
(Socket 3, M key, type 2242/2260/2280 SATA & PCIe SSD support)
- 1 x SATA Express connector
- 6 x SATA 6Gb/s connectors
(M.2, SATA Express, and SATA3 4/5 connectors can only be used one at a time. The SATA3 4/5 connectors will become unavailable when an M.2 SSD is installed.)