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AB350 itx and NVMe Samsung 970 - Slow speed
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manuzzo View Drop Down
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Points: 6 		Post Options Post Options   Thanks (0) Thanks(0)   Quote manuzzo Quote  Post ReplyReply Direct Link To This Post Topic: AB350 itx and NVMe Samsung 970 - Slow speed
    Posted: 23 May 2018 at 4:48am
Hello everybody,
this is my configuration

Fatal1ty AB350 Gaming-ITX/ac
Ryzen 1700
Corsair 16GB Ram
Sapphire RX480

Today I received the new NVMe M2 Samsung 970 EVO 250GB. Connected it to the Ultra M.2 port on the bottom side of the motherboard.

I updated to 4.60 BIOS and installed Samsung drivers, but I get these results:



Aren't them low compared to reference test?

http://www.legitreviews.com/samsung-ssd-970-evo-nvme-1tb-ssd-review_204678/4

They're almost the half...





Edited by manuzzo - 23 May 2018 at 4:49am
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kerberos_20 View Drop Down
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Points: 3687 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2018 at 12:37pm
that reference test is done on 1TB version
u have slower 250GB version
nothing wrong

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Reinvented View Drop Down
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Just for comparison.. https://www.newegg.com/Product/Product.aspx?item=N82E16820147689 

If you look at Read/Write performance, your speeds are right on.  In fact, your read is slightly faster.  
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manuzzo View Drop Down
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Points: 6 		Post Options Post Options   Thanks (0) Thanks(0)   Quote manuzzo Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2018 at 5:38pm
Yes, but here is a benchmark on a test of 250GB like mine



Seq is the same, while 4K tests are almost the half, why?
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kerberos_20 View Drop Down
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Points: 3687 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2018 at 6:58pm
cant u make that picture a little bit bigger?
also by looking at those numbers, rapid mode is enabled here

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manuzzo View Drop Down
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Sorry here it is:



RAPID mode is unsupported on 970 evo M2
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kerberos_20 View Drop Down
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https://www.hdsentinel.com/thanks_for_downloading.php?file=https://www.harddisksentinel.com/hdsentinel_trial_setup.zip

run this
in menu click on disk and select random seek test
put your results here (picture)

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manuzzo View Drop Down
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Points: 6 		Post Options Post Options   Thanks (0) Thanks(0)   Quote manuzzo Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2018 at 9:11pm
Here it is 
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kerberos_20 View Drop Down
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Points: 3687 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 24 May 2018 at 12:01am
12k iops thats normal, latency is ok, temperature a little bit higher, at 75° it will throttle
max bandwith (read/write) from your first picure is also ok (pcie x4 gen3)

anything in between is mostly windows related (cache/drivers)

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MNMadman View Drop Down
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Originally posted by manuzzo manuzzo wrote:

Yes, but here is a benchmark on a test of 250GB like mine



Seq is the same, while 4K tests are almost the half, why?
Where was that from?  What was the review system?  AMD systems sometimes have less performance with SSDs.


Edited by MNMadman - 24 May 2018 at 8:50am
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