Asus X570 Pro 2nd Gen M.2 port connection
Asus X570 Pro 2nd Gen M.2 port connection
I filled up m.2 1 next to chipset. This is right where my 3070 is. There is an lower m.2 gen 2 nvme slot 2nd slot that acording to manual will run at x4 speeds. I'm getting conflicting answers from asus. Some says it will run at gen 4x4. Called on different issue on whether I needed a standoff for 2nd slot since I don't have one and asked again about 2nd m.2 speed sharing lanes. He mentioned since I have an external graphics card it will only run at x1 speed, slow as hell. I originally bought 970 evo plus, but found 980 pro for 40$ more so I said screw it, take advantage of gen 4 since 2nd m.2 will be slower anyhow. I can't get a real answer on this. Asus X570 pro. 3070, 5600x cpu. If it's x1 I could have bought any nvme with speeds that low. Also will it take any lanes away from gpu. I'm a novice here. lost. probably wasted money on higher end nvme cause I know the load times are about 1 second difference. Thanks for any help.
To locate the solution, trace the physical PCB paths starting from your top NVMe port. If they reach the CPU, everything looks okay. This port is controlled by the CPU and with Zen 3 it will utilize four PCIe lanes. Additional four lanes will serve the chipset while the remaining sixteen go to your 3070. If the drives connect to the chipset, the situation isn’t favorable. Both NVMe devices will compete for a four-lane connection between the chipset and CPU, along with USB, SATA, and network interfaces. Unless you’re accessing both drives simultaneously or moving data from high-speed storage, you probably won’t perceive any change. I suspect the first case is more likely, but without a direct board inspection I can’t confirm.