Question M.2 Drive on Aorus X470 Gaming 5 Wifi

Nov 14, 2019
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Hi there,

I've recently purchased this motherboard.

It has 2 M.2 slots.

In the M.2 A slot I have a WD Blue 1tb NAND M.2 SSD which is my boot drive and registers fine.

In my M.2 B slot I have a Pioneer M.2 Internal Solid State Drive SSD Series (PCIe Gen 3 x 4 2TB). This seems to not be working! It doesn't show up in the file manager or bios, also the physical SSD itself needs to be turned upside down to fit in the motherboard, implying the motherboard is not compatible with it, even though in the manual it specifically states that the M.2 B slot is only compatible with PCIe M.2's?

Help!!
 
Nov 14, 2019
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Haven't swapped em over yet, but something interesting: when the pcie m.2 was in the m.2B slot, the red VGA light on the motherboard kept coming on during boot and nothing showed on the monitor, then when I removed it this problem stopped.
 
Nov 14, 2019
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You are right, but even that you can test it and check if the BIOS can see the Pioneer SSD in the M.2A port.
I swapped them round, when I did the Pioneer PCIe was indeed recognizer by the m. 2A slot but the WD Blue was not recognised by the m. 2B slot
 

saint19

Champion
Moderator
I swapped them round, when I did the Pioneer PCIe was indeed recognizer by the m. 2A slot but the WD Blue was not recognised by the m. 2B slot
That was my guess...

The M.2 B port says this:

PCIe 2.0 x4/x2 SSD support
But the SSD Pioneer that you have says this:

PCIe Gen3x4
I can not find any information in the Pioneer page about backwards compatibility with PCIe 2.0 but based on the results seems that does not support that.
 
Nov 14, 2019
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That was my guess...

The M.2 B port says this:



But the SSD Pioneer that you have says this:



I can not find any information in the Pioneer page about backwards compatibility with PCIe 2.0 but based on the results seems that does not support that.
Well bollocks, so you're saying I need a gen 2 not a gen 3, because that m.2B slot is not up to date enough to read a d write to a gen 3 PCIe?
 

saint19

Champion
Moderator
Well bollocks, so you're saying I need a gen 2 not a gen 3, because that m.2B slot is not up to date enough to read a d write to a gen 3 PCIe?
Yep, basically.

Sounds crazy since that Gen 3 SSD should be backwards with Gen 2 but the information in the Pioneer's pages does not mention that is backwards with Gen2.

Based in the BIOS recognizing the SSD in the M.2A that is Gen 3 but not in the M.2B that is Gen 2, I make that conclusion.
 
Nov 14, 2019
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Yep, basically.

Sounds crazy since that Gen 3 SSD should be backwards with Gen 2 but the information in the Pioneer's pages does not mention that is backwards with Gen2.

Based in the BIOS recognizing the SSD in the M.2A that is Gen 3 but not in the M.2B that is Gen 2, I make that conclusion.
Thank you so much for your help! Any chance you could recommend a correct SSD for me? I don't want to make the same mistake twice!
 

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