X470 Motherboard for Ryzen 2700X Full Support NVME PCIe x4

Jun 14, 2018
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X470 Motherboard for Ryzen 2700X being top priority Full m.2 nvme PCIe x4 support.

Specs:
CPU: 
AMD Ryzen 7 2700X 4.3 Ghz

CPU Cooler: Nfortec Hydrus 240 Kit Watercooler Azul

RAM:
-F4-3200C14D-16GTZRX
or
-F4-3200C14D-16GFX

Disc:
-Samsung SSD 970 EVO NVMe M.2 250 GB
and
-SEAGATE BarraCuda 3.5" 1TB SATA3

MotherBoard:
-PRIME-X470-PRO
or
-ROG-STRIX-X470-F-GAMING

GPU: Asus Strix GeForce GTX 1050 Ti OC 4GB GDDR5


A little bit of history, I´m building my a pc for SketchUp + v-ray rendering and I was going with to buy Asus x470 PRO, but unfortunately when I look more carefully on specs I found this:

AMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation Processors :
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIe 3.0 x 4 mode)
AMD 7th Generation A-Series/Athlon X4 Processors :
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode)
AMD X470 chipset :
1 x M.2 Socket 3, with M Key, type 2242/2260/2280 storage devices support (SATA & PCIe 3.0 x 2 mode)*3
6 x SATA 6Gb/s port(s)
Support Raid 0, 1, 10

If I understand correctly it says that I cannot use PCIe x4 with x470 chipset and it only is able PCIe x2.
I still thought about just being ok with using only PCIe x2 but then I saw some review and test about the difference in velocity and I knew that I need to have it xD.
So now I´m lost in this sea of motherboard seeking for help :)
Any comments on the rest of the specs are more than welcome.
 
Solution
How did I come to my interpretation??? By reading the text and having some understanding of the architecture.
The other statement you asked about says that there is a second M.2 slot that is PCIe 3.0 x2 or SATA. I believe the "*3" is a footnote. that probably says that you don't get 6 SATA ports if you use that second M.2 slot. You either lose 1 or 2 SATA ports when that M.2 slot is used.

I don't believe there is any reason you can't use either of those x470 motherboards with an M.2 x4 and a SATA disk.

kanewolf

Titan
Moderator
The text you show says that there is an M.2 slot that is a PCIe 3.0x4 when used with a Ryzen CPU. That same slot is SATA only if used with an Athlon CPU. There is a second M.2 slot that is an PCIe 3.0x2 that gets PCIe lanes from the motherboard chipset.
 
Jun 14, 2018
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Sorry, I don´t understand how did you come to that idea.
Don´t get me wrong, if you are correct, it means that I can choose one of the original motherboard and use a SATA HDD (the SEAGATE) and a M.2 NVME PCIe in x4 mode (the Samsung).

Can you explain to me?

and what this line tells you?
AMD X470 chipset :
1 x M.2 Socket 3, with M Key, type 2242/2260/2280 storage devices support (SATA & PCIe 3.0 x 2 mode)*3
6 x SATA 6Gb/s port(s)
Support Raid 0, 1, 10
 

kanewolf

Titan
Moderator
How did I come to my interpretation??? By reading the text and having some understanding of the architecture.
The other statement you asked about says that there is a second M.2 slot that is PCIe 3.0 x2 or SATA. I believe the "*3" is a footnote. that probably says that you don't get 6 SATA ports if you use that second M.2 slot. You either lose 1 or 2 SATA ports when that M.2 slot is used.

I don't believe there is any reason you can't use either of those x470 motherboards with an M.2 x4 and a SATA disk.
 
Solution
Jun 14, 2018
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First, don´t get me wrong, I'm not doubting your knowledge nor your answer.
The reason I ask you to explain it to me it´s because I want to improve my knowledge and because when I talk to the Asus tech support two days ago, they told me that I can only use PCIe x2, but for some reason I got the idea that the support even knew less than i.

the "/" means "or", right?
When I read this quote I got the same idea as you.
AMD Ryzen™ 2nd Generation/ Ryzen™ with Radeon™ Vega Graphics/ Ryzen™ 1st Generation Processors :
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIe 3.0 x 4 mode)

But then I read the below quote and I got all confused and this is why I as asking you to explain to me if you could.
AMD X470 chipset :
1 x M.2 Socket 3, with M Key, type 2242/2260/2280 storage devices support (SATA & PCIe 3.0 x 2 mode)*3
6 x SATA 6Gb/s port(s)
 
First quote is for Ryzen APU chips, 2200g and 2400g
Second quote is about Ryzen2 chips like 2600(x) and 2700(x)
I have Asus prime x470 Pro MB and Samsung 960 Evo which works at x4 in top M.2 slot. In bottom M.2 slot it would work at x2 mode as SATA3 speeds.
 
Jun 14, 2018
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I just realize that there are two m.2 slots -.- sorry m8.
So what you are saying is that the m.2 slot under the heatsink will always be able to do PCIe x4 if the SSD allows it, but the other m.2 slot bellow is the one that has the restrictions that was quoted on this post?
 

Yes, at least that's how it's on my MB. If you also want to occupy second M.2 slot might as well get cheaper one.

 
Jun 14, 2018
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BTW -PRIME-X470-PRO vs ROG-STRIX-X470-F-GAMING worth it the extra 20 bucks?

Thanks, kanewolf and CountMike!
Despite kanewolf told the right answer, CountMike made me understand the answer and point out my error.
and for some reason I´m unable to pick a solution :(

Right answer:
Quote of kanewolf:
"The text you show says that there is an M.2 slot that is a PCIe 3.0x4 when used with a Ryzen CPU. That same slot is SATA only if used with an Athlon CPU. There is a second M.2 slot that is an PCIe 3.0x2 that gets PCIe lanes from the motherboard chipset."

Quote of kanewolf:
"First quote is for Ryzen APU chips, 2200g and 2400g
Second quote is about Ryzen2 chips like 2600(x) and 2700(x)
I have Asus prime x470 Pro MB and Samsung 960 Evo which works at x4 in top M.2 slot. In bottom M.2 slot it would work at x2 mode as SATA3 speeds."
 

Globber

Distinguished
Jan 30, 2014
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First quote is for Ryzen APU chips, 2200g and 2400g
Second quote is about Ryzen2 chips like 2600(x) and 2700(x)
I have Asus prime x470 Pro MB and Samsung 960 Evo which works at x4 in top M.2 slot. In bottom M.2 slot it would work at x2 mode as SATA3 speeds.

I am late to the post, but does this mean there are still 2 lanes left over that are dedicated to the PCIe x1 and x4 slots? I am just wondering if having 4 SATA drives, 1 NVMe drive, 1 m.2 SATA drive, and a GTX 1080ti is using all of my lanes? Or do I still have 2 lanes open on my x1 and x4 PCIe slots to add a PCIe wifi card? I have the same Prime X470 Pro motherboard.

Thanks!
 
I am late to the post, but does this mean there are still 2 lanes left over that are dedicated to the PCIe x1 and x4 slots? I am just wondering if having 4 SATA drives, 1 NVMe drive, 1 m.2 SATA drive, and a GTX 1080ti is using all of my lanes? Or do I still have 2 lanes open on my x1 and x4 PCIe slots to add a PCIe wifi card? I have the same Prime X470 Pro motherboard.

Thanks!
Only NVMe drive counts with 4 lines.