When it comes time to install your SSD, you discover that it is simpler to do it in the Secondary M.2 socket. Typically, since it is more accessible than the Primary M.2 SSD socket, which is wedged between the video card and the CPU region of the motherboard. But, you wonder, does it truly make a difference?
Your Primary M.2 socket is not the same as your Secondary M.2 socket. Although they both claim to offer PCI-Express 4.0 x4 speed, the paths to get there and the lanes they connect to are different. On high-performance SSDs, this may result in latency problems as well as performance discrepancies.
That is the focus of today’s study; we’ll evaluate the performance of the Primary M.2 socket and Secondary M.2 socket on a typical AMD X570 chipset-based motherboard to see whether it actually makes a difference where you place your SSD.
NVMe 1.4 SSDs are fast SSDs.
There’s a new generation of PCIe Gen 4 NVMe SSDs on the market right now, which we’ll refer to as 2nd generation PCIe Gen 4 NVMe SSDs. We recently evaluated the MSI SPATIUM M480 2TB HS PCIe 4.0 Gen4 NVMe SSD. These latest SSDs use NVMe 1.4 protocol and controllers such as Phison’s E18, which use 96-layer 3D TLC NAND flash memory.
These new SSDs can achieve peak sequential read throughputs of 7000MB/s+ (7GB/s) and sequential write throughputs of 6800MB/s+ (6.8GB/s). These new PCIe Gen 4 NVMe SSDs vastly outperform the previous generation, which could only do 5000MB/s (5GB/s) reads and 4000MB/s (4GB/s) writes at most.
This is due to newer SSDs utilizing the NVMe 1.4 protocol, as well as newer controllers that can push NAND flash quicker. So you went to great lengths to spend a lot of money on these fast SSDs, and you don’t want to waste any of them.
Did you realize, however, that the M.2 SSD slot in which you installed your new shiny SSD may limit its speed on these newer SSDs? This is because not all SSD M.2 slots are created equal, even if they can handle PCI-Express 4.0 x4 interfaces physically. It matters where they get their PCIe lanes from.
Chipset AMD X570
The explanation for this may be seen in the AMD X570 Chipset diagram. When it comes to building motherboards and allocating PCI-Express lanes to different components, motherboard manufacturers have a lot of options. Manufacturers of motherboards have the option of choosing between a PCIe 4.0 x4 NVMe socket, two SATA plus an x2 NVMe socket, or two x2 NVMe sockets.
They may then choose from a broader range of SATA and NVMe configurations based on the chipset. They can add a few additional PCIe 4.0 x4 NVMe sockets, or divide them up into various speeds and configurations. The kicker is that those additional NVMe sockets are linked to the chipset rather than the CPU. As a result, if motherboard makers desire two Gen 44 sockets, one from the CPU and one from the chipset must be provided.
On the specs page for this ASUS TUF GAMING X570-PLUS (WI-FI) motherboard, which represents a standard X570 motherboard, you will notice the aforementioned setup. What you can see here is that the “3rd Gen AMD Ryzen Processor” comes with 1 M.2 socket that supports PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 The second M.2 Socket, which supports PCIe 4.0 x4, is obtained from the “AMD X570 Chipset.”
As a result, both M.2 sockets support PCIe 4.0 x4 electrically and physically, although one draws its lanes from the CPU and the other from the X570 Chipset. As a result, the issue arises: does it matter? We’re on a mission to find out.
For testing purposes, I’m going to install the SSD.
The motherboard we’re evaluating is an ASUS TUF GAMING X570-PLUS (WI-FI) motherboard, which is a common SSD installation motherboard. It features a main M.2 1 socket at the top that is wedged between the GPU and the CPU, making installation difficult if your computer’s motherboard is already installed. It also includes a secondary M.2 2 socket at the bottom, beneath the second PCI-Express expansion slot, which makes its installation simpler, as well as a motherboard heatsink for the SSD.
PCI-Express 4.0 x4 is supported by both sockets. As a result, you may be tempted to put the SSD in this slot, but whoa there nelly, this may not be the greatest option. We’re utilizing an MSI SPATIUM M480 2TB HS PCIe 4.0 Gen4 NVMe SSD, which is an NVMe 1.4 PCIe Gen4x4 SSD with read and write speeds of 7000MB/s and 6800MB/s, respectively. It also has a heatsink, which we shall utilize. Everything about this configuration is identical; for testing purposes, we just switched the SSD between the two sockets.
Frequently Asked Questions
Are there different types of M 2 slots?
There are three different types of M 2 slots. The first is the original M2, which uses a spring-loaded latch to secure the blade in place. The second type is an M2L, which has a lever that can be pulled down to release the blade from its housing. The third type is an M2S, which has a small button on top of the housing that must be pressed with a screwdriver to release the blade.
What is the difference between M 2 M and M 2 BM?
M 2 M is a motorized device, whereas M 2 BM is an autonomous robot.
What is the difference in m 2 drives?
The difference in m 2 drives is the amount of memory. A m 2 drive has a larger amount of memory than a m 1 drive.
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