Question Samsung 970 EVO Plus 500GB M.2 NVMe slow Read and Write speeds Issues

[anik4good]

Specs are:
CPU: Intel i5-6500
Motherboard: Asus b150 pro gaming aura
Ram: 16 GB Avexier DDR4 2133 MHZ
SSD/HDD: Samsung 970 EVO Plus NVMe PCIe M.2 500 GB
GPU: Intel HD 630
PSU: Antec vp 550
Chassis: Coolermaster mastebox lite 5
OS: Windows 10 64-bit
I just updated the BIOS to the latest version.

When running benchmarks, I noticed that while the read and write speeds are as expected, the read and write speeds are much lower (see attached screenshots link ) it should be Read 3,500 MB/s and Write 3,200 MB/s

https://imgur.com/ixmB1WF

View: https://imgur.com/ixmB1WF

https://imgur.com/liZSxJY

View: https://imgur.com/liZSxJY

 

[rgd1101]

https://www.asus.com/us/Motherboards/B150-PRO-GAMING-AURA/
PCIe x2 mode (Gen 3.0)

the ssd can use x4 for the max speed

 

[kanewolf]

As @rgd1101 said, your motherboard is limiting the performance because it only has two PCIe lanes allocated to the NVMe interface. The spec numbers for that SSD are using a four lane PCIe interface.

 

[anik4good]

Thank you for your answer everyone <3 https://www.amazon.com/dp/B01N78XZCH?psc=1&SubscriptionId=AKIAJ34G6QLDFAMAE5YA&tag=fulguckud-20 if i go for this one is that will fix the issue?

 

[AllanGH]

It should, however, if you are booting from the drive, adjustments will be necessary in BIOS/UEFI.

 

[anik4good]

Yes i will boot from it cause currently i am using this as my boot device so i will buy this pci express and use it as my boot drive .. what adjustments do i need to do in bios cause yesterday I updated my bios to the latest version... thank you

 

[AllanGH]

Well, make CERTAIN that you can boot from a drive installed to that card. I only gave it a cursory glance to make sure it is x4 capable....caveat emptor.

BIOS adjustments would be making certain that your boot device is correctly specified.

 

[kanewolf]

You won't see any significant real world performance differences. I wouldn't bother with an update just because of this limitation.

 

[anik4good]

You won't see any significant real world performance differences. I wouldn't bother with an update just because of this limitation.

So you are suggesting me to use it like this and don’t buy the pci express ?

 

[kanewolf]

So you are suggesting me to use it like this and don’t buy the pci express ?

That is my recommendation.

 

[mdd1963]

As the little adapter is only $15 or so, I'd get it....

(But, even half speed/2 lane NVME is still plenty darn quick)

 

[USAFRet]

I would only use that adapter if I had seen other people, with the exact same parts, and could boot from that drive in that adapter.
And exactly what BIOS or other changes need to be made.

That level of board is not 100% plug and play.