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Getting slow NVME write speeds

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got the 3B2QGXA7 firmware today, and it fixed this issue... we'll see how long it lasts...


Interesting. Was your NVME permanently in your system, and writing at far under 5000mb/s before the firmware went on?
 
D

Deleted member 205776

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Interesting. Was your NVME permanently in your system, and writing at far under 5000mb/s before the firmware went on?
Yes, I installed it last summer. Problem started appearing in December of last year, as seen in the following screenshot. Likewise, you can also see from my CrystalDiskMark screenshot above, and the benchmark I just ran in Samsung Magician, that the write speed has drastically improved.



 

spykeer

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I finally get the update.

Need to Open/Close Magician multiple times to get the Update on it.

Last Magician Software update on middle of march, implemented the "Full Power Mode" function, and i left enabled it (Which makes my 980 Pro hotter, without performance gain)
But the firmware update won't works with it, every time i get an error on updating firmware.
I disabled the Full Power Mode function, restart, and after a reboot, i finally get the update working.

Now i'm on the 3B2QGXA7 Firmware and my Speed is finally correct, hope, it will stay like that!

1620120024536.png
 
D

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Well, looks like Samsung hit the nail on the head with this fix. I sure hope these write speeds hold up, and that it doesn't go back to abysmal speeds weeks later.
 
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Well I guess I'm the unfortunate one here, 500GB on 3B2QGXA7, TRIMed before testing
螢幕擷取畫面 2021-05-09 235409.png
 
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I have a 980 PRO 2TB and it runs fast as new, check to see windows is fully updated and make sure no more than 75% of the SSD is used
 
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I have a 980 PRO 2TB and it runs fast as new, check to see windows is fully updated and make sure no more than 75% of the SSD is used
I want to buy another 980 pro (2tb) like you, so i have to solve the issue using my 500gb before i buy it. How many percent is your 2TB filled to?
 

Heavyhms

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I have a similar problem: on my Asus ROG Strix Z490-f gaming (bios 2103) i have two 970 evo plus 1TB. The first, with 6.9TB written and 400GB free (plus over provisioning) purchased September 2020, the second, only 20 days old, 1.2TB written, 330TB free (plus over provisioning). Today I have noticed a massive speed drop: actually I have on each drive 904MB/S read and 871MB/s write. Few days ago speed are totally by spec and both drives works ad pcie gen3 x4.
Reinstalling Samsung nvme drivers does not correct the problem.
Coud be a windows update problem? Actually I have windows 10 pro build 21h1

Actually i have enabled from about 3 weeks both discrete graphic (rtx 3070) and intel i7-11700k integrated video: this combo can degradate m2 nvme performance?

a little update: problem solved disabling onboard video
 
Last edited:

skip741

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The evo 970 plus line ALSO is suffering from the slow write speeds caused by the turbowrite cache being exhausted and not refreshing....Where is the firmware update for 970 evo plus owners Samsung?!!!!! We are awaiting a fix, you KNOW what the issue is,You Have Already fixed it in the 980 pro, so where is the firmware for the 970 line? why is this being neglected? Man, I will Never buy or recommend another samsung drive...ever.... after all this crap...its unexcuseable, when an answer exists, a problem is well know, but the fix is Not being offered! shame on you samsung!
 

mailo34

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Today i noticed again my SAMSUNG 980pro running very very slow again (Using the newest firmware and AMD chipset, nothing i can do about it)....Piece of junk
 

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Pwablo

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Your not alone... I copied a 90GB game onto my 500gb 980 Pro on Saturday....ran a test on the drive yesterday and got a write speed of 684 !!! Drive only half full. Latest firmware also....Moved the data to another drive yesterday and did a test 5 minutes ago... write speed to back over 5000 again. Wont be buying another.
 

skip741

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I Knew that you guys were Not gonna be able to verify the new firmware fixed things without giving it some time...the act of simply flashing the firmware, will clear that slc cache so the issue will Seem to have been fixed after updating firmware but you wont Know till some time has passed and you moved some data on the drive..THATS what uses up the cache and Thats when you will Know whether its been truly fixed or not.. with my 970 evo plus, the cache is used up and has been for months..writes are about 800-900mbps which is abysmal and they dont recover...A properly working controller Should clear that used cache and give you plenty to bench with or copy data with but thats not happenning..what a crying shame...when Ive talked to samsung techs direct, they say "YOUR THE 1ST ONE WE HAVE HEARD MENTIONING THIS ISSUE" WTF? IVE searched hrs to try and find a way to clear slc cache,if there was a simple cmd prompt but no,there isnt..these stupid programs like magician Should at least offer an option to clear the slc cache since they know its an issue and they havent fixed it with firmware...If I could Reflash the current firmware, it would clear tyhe cache but you cant Reflash firmware, it says its Already up to date so no go on that...secure erase will do it but im fed up wiping my drive to fix samsungs incompetence, so ive put up with low write speeds but man, I will Never buy another one nor recommend samsung EVER! the best way to avoid these issues with slc cache is to buy true mlc drives that dont rely on slc to boost slow tlc based chips to normal speeds...unfortunately, real mlc drives are almost extinct...everyone is doing what samsung is now doing...cheap tls or worse ,qlc drives with slc to boot the write... thing is that most other brands are doing it Right..
 
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There's a new firmware version for the 980 Pro at least.

sammy new firm.png

At first it failed, then it went thru on the 2nd attempt, thank goodness. Health and performance of the drive seem OK. Hope it holds up. :)
 
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View attachment 175491

There is no driver for the Samsung 980, only the 970. The temp is about 51.. and sometimes in Samsung Magician it says too high. I can't open it now its crashing for some reason.
And In my gigabyte BIOS settings It shows the setting as PCI 4x and shows up under NVME. And I put in the top most slot. Not sure whats going on.
Its expected, the drives smaller than 1TB are slower, Samsung knowing that reviewers "very rarely" buy retail, deliberately only sent the bigger models to get the best reviews.

Check amazon reviewers, the 500gig and smaller are slower, the 256gig is even slower than yours.

With that said, I am talking about when SLC is exhausted, yours seems too slow if its writing to SLC cache.
 
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Benchmark Scores Passmark: 9732 Unigine Superposition: 9612 InfinityBench: A-
With the latest firmware (4B2QGXA7): Crystal Disk Mark results. They're OK but not at levels when I first installed it 15 months ago--notably with the random writes. Still, I can't really complain and I def. perceived a performance improvement. This is PCIe v. 3. Think I may get the 980 (not Pro) next time just b/c of the hassle.

sammycdm firmv412032021.png
 
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