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How Do You Know if the M.2 Port Supports Pcie 3.0

Written By Wednesday, 16 March 2022 Add Comment Edit
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Jun 27, 2018
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  • #1
M.2, PCIe, NVMe, it's all very confusing to me. From what I tin can tell to get the fastest boot speeds and information transfers Thousand.2 storage drives are ameliorate than regular SSD'south considering the SATA connection bottlenecks the SSD'south. Basically, my question is, on pcpartpicker there is a filter for one thousand.two slots and one for PCIe slots and I'm not really sure what the difference is. And how do i know if the m.2 slot on my mobo is PCIe x4
Oct 3, 2012
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  • #5
The MSI X470 Gaming Plus ATX board has 2x Grand.2 slots.

The summit slot (direct below the CPU socket) supports PCIe only (NVMe) and runs the slot with 4x PCIe 3.0 lanes supplied by the CPU.

The bottom slot (between PCI_E4 and PCI_E6, and beside PCI_E5) supports both PCIe and SATA 1000.2 SSDs and runs the slot with 4x PCIe ii.0 lanes supplied past the motherboard'southward PCH chipset.

When using a SATA G.2 SSD in the bottom M.two slot, the SATA1 port on the motherboard will be disabled, every bit information technology will be routed to the K.2 slot instead.

When using a PCIe M.2 SSD in the bottom Yard.2 slot, expansion slot PCI_E6 (bottom most expansion slot) will be disabled, every bit the lanes used for the last expansion slot will be routed to the M.2 slot instead.

All of the higher up is institute in your motherboard'south transmission.

You lot are able to apply both types of M.2 SSDs on your motherboard, simply only the lesser slot supports SATA One thousand.2. Y'all might remember of SATA Grand.2 SSDs as SATA SSDs that but don't use a ability and data cable, simply withal use one of your motherboard'southward SATA connectors, via the M.2 slot.

PCIe Yard.2 SSDs use the NVMe interface specification to access an SSD over PCIe. This is what you're looking for if you want fastest SSD currently. Since SATA 1000.2 still uses your standard SATA interface, it's limited to the lower throughput of that SATA interface. This is usually reflected in the read / write numbers for drives.

USAFRet
Mar xvi, 2013
151,493
10,405
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  • #2
M.2, PCIe, NVMe, it's all very confusing to me. From what I can tell to get the fastest boot speeds and information transfers M.2 storage drives are meliorate than regular SSD's considering the SATA connexion bottlenecks the SSD'southward. Basically, my question is, on pcpartpicker there is a filter for 1000.ii slots and one for PCIe slots and I'yard not really sure what the difference is.

"m.ii" is just the form factor.
Thou.2 drives can be either SATA III or NVMe.
Some boards or slots tin employ either, some tin utilize 1 or the other. Some can utilize an NVMe bulldoze, simply slowly.

Confusing, right?

How to tell what works?
What motherboard do yous take?

Jun 27, 2018
18
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10
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  • #3
M.ii, PCIe, NVMe, it's all very confusing to me. From what I tin tell to get the fastest kick speeds and data transfers M.ii storage drives are better than regular SSD's because the SATA connexion bottlenecks the SSD's. Basically, my question is, on pcpartpicker in that location is a filter for one thousand.ii slots and one for PCIe slots and I'm non really sure what the difference is.

"thousand.2" is just the class cistron.
One thousand.2 drives can exist either SATA 3 or NVMe.
Some boards or slots can use either, some tin apply one or the other. Some can utilize an NVMe drive, only slowly.

Confusing, right?

How to tell what works?
What motherboard do yous have?

Then what is PCIe
https://ca.pcpartpicker.com/product/4D7v6h/msi-x470-gaming-plus-atx-am4-motherboard-x470-gaming-plus
This is the link to my mobo

USAFRet
Mar sixteen, 2013
151,493
10,405
175,890
23,766
  • #iv
G.ii, PCIe, NVMe, it's all very confusing to me. From what I can tell to go the fastest kicking speeds and data transfers M.2 storage drives are amend than regular SSD'due south because the SATA connectedness bottlenecks the SSD's. Basically, my question is, on pcpartpicker there is a filter for grand.2 slots and one for PCIe slots and I'thou not really sure what the divergence is.

"thou.2" is just the form factor.
M.2 drives tin be either SATA 3 or NVMe.
Some boards or slots tin use either, some can utilize one or the other. Some tin can utilize an NVMe drive, merely slowly.

Confusing, correct?

How to tell what works?
What motherboard do yous take?

So what is PCIe

PCI Express (Peripheral Component Interconnect Express)
https://en.wikipedia.org/wiki/PCI_Express

Basically, a protocol for connecting multiple types of devices, at varying speeds.

So, what specific make/model motherboard practise yous accept?

October 3, 2012
4,644
28
26,990
845
  • #5
The MSI X470 Gaming Plus ATX lath has 2x Grand.2 slots.

The pinnacle slot (directly beneath the CPU socket) supports PCIe only (NVMe) and runs the slot with 4x PCIe 3.0 lanes supplied by the CPU.

The bottom slot (between PCI_E4 and PCI_E6, and beside PCI_E5) supports both PCIe and SATA M.2 SSDs and runs the slot with 4x PCIe 2.0 lanes supplied by the motherboard'due south PCH chipset.

When using a SATA M.2 SSD in the bottom M.two slot, the SATA1 port on the motherboard volition be disabled, every bit it will be routed to the M.2 slot instead.

When using a PCIe G.2 SSD in the bottom Thou.2 slot, expansion slot PCI_E6 (lesser nearly expansion slot) volition be disabled, as the lanes used for the concluding expansion slot will be routed to the M.2 slot instead.

All of the above is institute in your motherboard'due south manual.

Yous are able to employ both types of M.2 SSDs on your motherboard, but just the bottom slot supports SATA K.2. You might call back of SATA Thou.2 SSDs as SATA SSDs that just don't use a power and data cable, only even so use one of your motherboard's SATA connectors, via the M.ii slot.

PCIe One thousand.two SSDs utilize the NVMe interface specification to access an SSD over PCIe. This is what you're looking for if you want fastest SSD currently. Since SATA M.ii notwithstanding uses your standard SATA interface, it'south express to the lower throughput of that SATA interface. This is normally reflected in the read / write numbers for drives.

  • #6
I don't go it at all - from the specification MSI B460M:
  • 2x One thousand.two slots (Primal Grand)
    • M2_1 supports upwards to PCIe three.0 x4 and SATA 6Gb/south, 2242/ 2260/ 2280/ 22110 storage devices 1
    • M2_2 supports up to PCIe three.0 x4, 2242/ 2260/ 2280 storage devices
    • Intel® Optane™ Retentivity Ready for the M2_2 slot only ii
    • Supports Intel® Smart Response Engineering for Intel Core™ processors
  1. SATA1 volition be unavailable when installing M.two SATA SSD in the M2_1 slot.
  2. Before using Intel® Optane™ retentiveness modules, please ensure that you accept updated the drivers and BIOS to the latest version from MSI website.
Reading the knowledgeable replies above... I think it means my 2d slot is the faster one and both my slots PCIe 3.0 x 4 support the NVMe interface ....

But considering there is no mention of NVMe in the motherboard spec I'grand nevertheless non totally sure!

Can someone assure me it does or doesn't?

USAFRet
Mar 16, 2013
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  • #seven
M2_1 supports upwardly to PCIe iii.0 x4
M2_2 supports upwards to PCIe 3.0 x4

In the context of a storage devic here, PCIe 3.0 == NVMe.
The same functioning for both M.ii ports.

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