[SOLVED] How many NVME SSD's can i Put in my machine?

[snowballyt123]

I got a B450 Tomahawk, Ryzen 2700, 1 Sata HDD, 1 SATA SSD, 1 pcie 3.0 NVME. I think online it says My cpu has 20 lanes which means my GPU + NVME = 20 lanes. Does that mean I cant get two nvmes ? if i wanted TWO NVME's by getting a PCIE card, would that slow down the NVMES as that would make 24 lanes ? or how would it work ?

 

[rgd1101]

cpu have 4 lanes for m.2
the other is from the chipset and it depend on motherboard config

https://www.msi.com/Motherboard/B450-TOMAHAWK/Specification
only x4(4 lanes) on the 2nd pcie slot

 

[snowballyt123]

cpu have 4 lanes for m.2
the other is from the chipset and it depend on motherboard config

https://www.msi.com/Motherboard/B450-TOMAHAWK/Specification
only x4(4 lanes) on the 2nd pcie slot

ok, got it! But that doesn't really answer my question

 

[kanewolf]

I got a B450 Tomahawk, Ryzen 2700, 1 Sata HDD, 1 SATA SSD, 1 pcie 3.0 NVME. I think online it says My cpu has 20 lanes which means my GPU + NVME = 20 lanes. Does that mean I cant get two nvmes ? if i wanted TWO NVME's by getting a PCIE card, would that slow down the NVMES as that would make 24 lanes ? or how would it work ?

Your motherboard has only 1 M.2 slot according to MSI website. If you wanted more you would use the PCIe slot. It is only PCIe 2.0 x4 (from the chipset). So it would have 1/2 the speed of the M.2 in the motherboard slot.

 

[snowballyt123]

That board has 1 M.2 slot. The other PCIe slot is PCIe 2.0 x2 so if you put an adapter in one your M.2 would run at PCIe 3.0 x2. So half the speed of an M.2.

ohhhh, interesting. So I'd have to get a better motherboard then.

 

[USAFRet]

ohhhh, interesting. So I'd have to get a better motherboard then.

Why the multiple NVMe drives?

 

[snowballyt123]

Why the multiple NVMe drives?

I wanna copy large files, Copying from a Sata SSD to a PCIE 3 ssd limits my speeds to 300mbps as my sata SSD slows down and pcie ssd practically does nothing.

 

[USAFRet]

Well, if your use case warrants it.
But yeah, a new motherboard is what you'll have to do. With all the attendant hassle of a new motherboard.


Why not a NVMe drive in a PCIe slot adapter?

 

[Krotow]

As people pointed out, your motherboard have only one PCIe 3.0 NVMe capable M.2 slot. So only one NVME drive natively for this board. However if you want to use additional NVMe drives, buy PCIe NVMe adapter card. There are some for example:

PCIe x4 adapter for single PCIe 3.0 NVMe or M.2 SSD drive.
PCIe x4 adapter for PCIe 3.0 NVMe drive and M.2 SATA drive.
PCIe x8/x16 adapter for two PCIe 3.0 NVMe drives. Obviously a bit expensive. Goes into second long PCIe slot.

FYI: Because all other PCIe slots behind GPU slot are PCIe 2.0, data transfer speed for NVMe disks on adapter card will be twice slower than for NVMe disk in motherboard M.2 slot.

 

[snowballyt123]

As people pointed out, your motherboard have only one PCIe 3.0 NVMe capable M.2 slot. So only one NVME drive natively for this board. However if you want to use additional NVMe drives, buy PCIe NVMe adapter card. There are some for example:

PCIe x4 adapter for single PCIe 3.0 NVMe or M.2 SSD drive.
PCIe x4 adapter for PCIe 3.0 NVMe drive and M.2 SATA drive.
PCIe x8/x16 adapter for two PCIe 3.0 NVMe drives. Obviously a bit expensive. Goes into second long PCIe slot.

FYI: Because all other PCIe slots behind GPU slot are PCIe 2.0, data transfer speed for NVMe disks on adapter card will be twice slower than for NVMe disk in motherboard M.2 slot.

Thanks for all the info. Everything is extremely clear to me now.

 

[Deleted member 2838871]

Why the multiple NVMe drives?

To not have to worry about storage... LOL... 3 slots @ 2 TB each should cover me for the life of the PC was my thinking when going for a mobo with 3 m.2 slots.

 

[USAFRet]

To not have to worry about storage... LOL... 3 slots @ 2 TB each should cover me for the life of the PC was my thinking when going for a mobo with 3 m.2 slots.

Multiple drives does not necessitate multiple NVMe drives.
Throw a couple of SATA III SSD in there and move on.

 

[Deleted member 2838871]

Multiple drives does not necessitate multiple NVMe drives.
Throw a couple of SATA III SSD in there and move on.

It did in this case... Black Friday sale 50% off. Of course, I'm speaking as someone who doesn't buy a $500 processor and then go cheap mode with a $50 cooler or spend thousands on a PC and want to put it all in a $60 case. 👍

 

[USAFRet]

It did in this case... Black Friday sale 50% off. Of course, I'm speaking as someone who doesn't buy a $500 processor and then go cheap mode with a $50 cooler or spend thousands on a PC and want to put it all in a $60 case. 👍

"Price" is/was a whole different consideration.

However...your current motherboard does not want to speak to multiple PCIe 3.0 drives.

 

[Deleted member 2838871]

"Price" is/was a whole different consideration.

However...your current motherboard does not want to speak to multiple PCIe 3.0 drives.

You got a point there. As soon as I read the reviews on this board and saw the 3 m.2 slots I could only think of one thing... SPEED.

Cheers!

 

[Krotow]

If you want to have several really fast NVMe drives in your system, then purchase X570 board with enough M.2 PCIe 4.0 NVMe slots. It will be fast. Well, a bit expensive too.