Question ASRock X870e Nova Disk Interaction Slow on PCIe Gen4 port

[Xeoh]

Just built a new system. The main nvme slot is working fine (t705 4tb is hitting advertised speeds on Crystal DiskMark).

The issue is the T500 2tb nvme ssd running on the PCIe Gen4 port.

The advertised seq read and write is 7400 MB/s and 7000 MB/s respectively. I am only getting 6500 MB/s and 6400 MB/s read and write speed on the SEQ1m/Q8T1 test on Crystal Disk Mark 5x 1GiB test.

Other hardware (unsure if it matters)
2x48gb team group ddr5 ram
9950x amd cpu
gpu 3080ti
os: windows 11 (up to date).
bios on motherboard is up to date (3.20).

Could I have a faulty nvme drive (just installed new today), or could the issue be the motherboard (or something else I'm missing).

 

[Lutfij]

Welcome to the forums, newcomer!

bios on motherboard is up to date.
For the sake of relevance, please mention the BIOS version for your motherboard.

Have you used Crucial's Storage Executive Manager and seen if any firmware updates are pending? Advertised speeds are often times cherry picked samples to make their products look favorable and on some instances are setup in a way to make said product look favorable. So long as your drive is close to advertised speeds, you're not in the fray.

Lastly, they state up to, instead of giving you a concrete number that'll be for every platform, on every run regardless of conditions.

 

[SkyNetRising]

The main nvme slot is working fine (t705 4tb is hitting advertised speeds on Crystal DiskMark).
The issue is the T500 2tb nvme ssd running on the PCIe Gen4 port.
The advertised seq read and write is 7400 MB/s and 7000 MB/s respectively.
I am only getting 6500 MB/s and 6400 MB/s read and write speed on the SEQ1m/Q8T1 test on Crystal Disk Mark 5x 1GiB test.
Could I have a faulty nvme drive, or could the issue be the motherboard (or something else I'm missing).

You're using chipset connected M.2 slot.
Max M.2 drive performance is achievable only on CPU connected M.2 slot.
Chipset connected slots will have a slight performance penalty.
This is normal.

 

[Xeoh]

Welcome to the forums, newcomer!

bios on motherboard is up to date.
For the sake of relevance, please mention the BIOS version for your motherboard.

Have you used Crucial's Storage Executive Manager and seen if any firmware updates are pending? Advertised speeds are often times cherry picked samples to make their products look favorable and on some instances are setup in a way to make said product look favorable. So long as your drive is close to advertised speeds, you're not in the fray.

Lastly, they state up to, instead of giving you a concrete number that'll be for every platform, on every run regardless of conditions.

I updated the ssd firmware to the latest using the executive tool. Its more likely an issue do to being connected to the chipset and not the cpu (as mentioned elsewhere)

 

[Xeoh]

You're using are chipset connected M.2 slot.
Max M.2 drive performance is achievable only on CPU connected M.2 slot.
Chipset connected slots will have a slight performance penalty.
This is normal.

Thanks, that's what I suspected. For the most part the speeds are hitting ~80% of advertised which is acceptable for a secondary drive. I was more concerned that the part I got a fake T500 drive and that could be the cause (in which case I'd return). Crucial confirmed that their registration wasn't working and that the part number I gave them is legit (but without inspecting the hardware could not confirm more).