Question Upgraded to Samsung 970 EVO M.2, read/write speeds of 800/mbs

Mar 13, 2020
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So I've had a custom build for about the past 5 years, no issues works beautifully. This year I started doing a lot more coding and statistical analysis in my phd so I began doing some upgrading and just recently I upgraded my main SSD from the a Samsung 840 EVO 250 GB 2.5" to the Samsung 970 EVO M.2. The main reason for the upgrade is that my previous SSD was nearly 90% full and PC began slowing down noticeably. So I installed the 970 EVO and my PC is running slower then it did before.

I ran UserBenchmark tests, CrystalDisk test, and Performance Benchmark via the Samsung Magician and all of them pretty much show read/write speeds in the 800s. I think MAYBE this might be due to the motherboard not being able to support the speeds of the M.2 but I can't find any confirmation of this. Can someone please advise? Dual monitor, motherboards BIOS is updated as is the Firmware for the M.2. Build specs are below:

Motherboard: GA-H97-D3H
CPU: Intel i7-490k
Memory: 24 GB Crucial Tact 2 x 8 GB and Corsair Vengeance 1 x 8 GB
Storage: Samsung 970 EVO M.2 500 GB and Seagate barracuda 1 TB
GPU: Geforce GTX 960
OS: Windows 10
 

USAFRet

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Mar 16, 2013
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The M.2 port on your Z97 board is PCIe x2.
That drive will be running 1/2 speed at best.

It doesn't state that specifically, but that is usual for a Z97. Almost all Z97 level boards are like that.
 
Mar 13, 2020
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The M.2 port on your Z97 board is PCIe x2.
That drive will be running 1/2 speed at best.

It doesn't state that specifically, but that is usual for a Z97. Almost all Z97 level boards are like that.
USAFRet,

Thank you for the response! I was afraid of that. In your opinion do you think it would be better to upgrade to a new motherboard? Or return the M.2 and get a new SSD. Are their SSD's that read/write at speeds >800?
 

USAFRet

Titan
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USAFRet,

Thank you for the response! I was afraid of that. In your opinion do you think it would be better to upgrade to a new motherboard? Or return the M.2 and get a new SSD. Are their SSD's that read/write at speeds >800?
Don't upgrade just to use that drive at its full speed. You'd be looking at a whole rebuild. Motherboard/CPU/RAM, probably everything else.

Accept it for what it is in that system, keep the 970 drive, and use it in your next system.
 
Mar 13, 2020
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Don't upgrade just to use that drive at its full speed. You'd be looking at a whole rebuild. Motherboard/CPU/RAM, probably everything else.

Accept it for what it is in that system, keep the 970 drive, and use it in your next system.
I appreciate the responses! Thank you sir
 

USAFRet

Titan
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Mar 16, 2013
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Were not a large handful of Z97 folks getting full performance via relatively inexpensive adapters in a PCI-e 3.0 X4 slot?
Yes, that is an option, for a secondary drive.

I have one of those for my Intel 660p.
BUT - we're looking at diminishing/negligible returns.

In my typical use case and workflow, I see little or no difference between a good SATA III drive (Samsung 860 EVO) and the 660p running at its full speed in an adapter.

Managing photos in Adobe Lightroom...zero measurable difference. Literally zero.
 

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