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  #1  
Old 02-15-2020, 12:18 PM
ewarwoowar ewarwoowar is offline
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Default MP510(960GB) Slow/inconsistent Write Speeds

I have reviewed the posts regarding the MP600 write speed issues and I seem to be experiencing the exact same issue on my M2 Mp510.

When I first got the drive, I consistently got the same speeds as per the specifications of the drive. I still have the same Win10 install which is around 1 year old.

Spec:
i7-8700k @ Stock
16GB (2x8gb) Corsair Vengeance 3000mhz
Gigabyte Z390M Gaming
Corsair MP510 960GB (362GB Free / 40c under load)

Things done/checked:
TRIM Enabled (also ran Optimize-Volume on the drive)
Updated Motherboard drivers
Updated MP510 firmware via Toolbox
Updated Motherboard BIOS to latest
Left computer off so that the drive cooled down, then tried ATTO again when drive was cooler

I'm stumped now and it looks identical to the issues the MP600 users are having. Any ideas?
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File Type: png CorsairMP510_Speeds.png (37.7 KB, 344 views)
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  #2  
Old 06-13-2020, 08:34 AM
JohnWayne78 JohnWayne78 is offline
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same to me. After 1 year of use (378GB free of 893 - according to Windows)

the write speed lowered from

CrystalDiskMark 6.0.2 x64 (C) 2007-2018 hiyohiyo
Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 3477.834 MB/s
Sequential Write (Q= 32,T= 1) : 3052.718 MB/s

to
CrystalDiskMark 6.0.2 x64 (C) 2007-2018 hiyohiyo
Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 3478.597 MB/s
Sequential Write (Q= 32,T= 1) : 1056.376 MB/s


This is reproducable with other tools. Is this an RMA issue?

Motherboard: Gigabyte Aorus Master X570
CPU: Ryzen 3900x

Last edited by JohnWayne78; 06-13-2020 at 08:45 AM.
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  #3  
Old 08-19-2020, 06:36 AM
BitFlip BitFlip is offline
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I am having the exact same issue and its extremely annoying!

At first the write speeds were great but after a year of on/off usage they are shocking.

Sequential Write 1126 MB/s
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  #4  
Old 09-03-2020, 01:49 PM
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Corsair CJ Corsair CJ is offline
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Some solutions that have worked for others:

If you're on AMD Ryzen, check your power plan settings and turn off PCI-Express Link State Power Management

Uninstall/reinstall the device driver for your SSD using device manager (assuming that you're not using the SSD as your OS drive which would require a fresh install of Windows to work around).

Additional info that may be useful: SSD performance does degrade as the drive gets more full, here's an article that explains the topic a bit more: https://www.anandtech.com/show/6489/playing-with-op (note that this article is from 2012 and they test SATA SSDs, NVMe SSDs may show a more noticeable dip in performance earlier as they aren't bottle-necked by the SATA interface).

I suggest reaching out to our technical support team at https://help.corsair.com for further assistance.

Update: I've also reached out to our SSD team to see if they have any additional information that can be of help.
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Last edited by Corsair CJ; 09-03-2020 at 02:35 PM.
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  #5  
Old 09-19-2020, 12:08 AM
ShampooCA ShampooCA is offline
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Looks like there are multiple threads going regarding this.
I get that drive performance decreases as it fills up, but keeping a drive half full just to keep it up to near advertised speeds is not a good thing.
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  #6  
Old 09-21-2020, 02:53 PM
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Corsair CJ Corsair CJ is offline
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Quote:
Originally Posted by ShampooCA View Post
Looks like there are multiple threads going regarding this.
I get that drive performance decreases as it fills up, but keeping a drive half full just to keep it up to near advertised speeds is not a good thing.
I understand your concern. I've forwarded everything I've seen so far to our product team to evaluate.
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  #7  
Old 09-29-2020, 11:47 AM
Akiin Akiin is offline
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i have the same problem with slow write speed.
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File Type: jpg cors.JPG (299.6 KB, 73 views)
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  #8  
Old 10-06-2020, 03:22 PM
Akiin Akiin is offline
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no update or progress ?
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  #9  
Old 10-07-2020, 12:01 PM
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Corsair CJ Corsair CJ is offline
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Quote:
Originally Posted by Akiin View Post
i have the same problem with slow write speed.
Quote:
Originally Posted by Akiin View Post
no update or progress ?
Unfortunately, I've got no additional updates yet. Our team is still investigating.

Thank you for sharing your results.
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  #10  
Old 10-12-2020, 01:06 PM
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For anybody experiencing this still. Could you post results before and after disabling fast startup within Windows? Please let me know your results in the responses.

To disable fast startup within Windows, do the following:











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  #11  
Old 10-31-2020, 12:44 AM
ArchimeZix ArchimeZix is offline
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Quote:
Originally Posted by Corsair CJ View Post
For anybody experiencing this still. Could you post results before and after disabling fast startup within Windows? Please let me know your results in the responses.

To disable fast startup within Windows, do the following:
[/IMG]
Hi I've joined the forum just for this issue as I'm having the same slow write speed issue. As you have asked in your last post I've tried to test the speed with fast startup option disabled. The results are still the same. My drive is 10 months old now and it is the MP510 960GB. Write speed is always around 1000 MB/s and read speed 3400 MB/s. If you need I will post screenshots.

please note this important note, I'm using CrystalDiskMark 6 to do the tests BUT the speed test is different from version to another! or from other application like (AS SSD Benchmark)!. For example, when I use the latest CrystalDiskMark 7 version the results is always around 2000MB/s Read and 1000MB/s Write which is different. and when testing using (AS SSD Benchmark) app the results is around 1800MB/s Read and 2300MB/s Write AND that is not the case when I test my other NVMe Intel drive which always give me correct speed test with all the programs and versions even though there is only 26GB empty from the drive from the total size 1TB.

Next thing I will try is a clean format as the OS is installed on it and can't delete its driver.
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  #12  
Old 11-02-2020, 12:46 AM
Citizen Crazed Citizen Crazed is offline
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Another one here y'all. My experience is pretty much a crtl-c/ctrl-v of ewarwoowar's.



Drive is actively cooled - peak temperature during the diskmark was 45 celsius during the read tests. Maxed at 43 during writing so shouldn't be any throttling going on.

Also @Corsair CJ, I tried it with Fast Start disabled - and repeated after a cold power cycle just to make sure the system had legitimately "non-fast started". No significant improvements:



Also tried it with all the PCIe link power management/ASPM/etc disabled - no significant difference either.

Even when this drive was first set up it was over 60% full but was still writing over 2000MB/sec from what I remember. I don't think I benchmarked it after the firmware update so not sure whether it was that which dropped the performance. I could try pulling some data off to retest it if someone thinks that will be of value, but given the similarity to other users' performance, it looks like we're all seeing a similar issue.

System is as per my profile, Win10 20H2, drive firmware is ECFM12.3. Any more info needed, don't be afraid to holler. :)

Last edited by Citizen Crazed; 11-03-2020 at 10:23 AM.
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  #13  
Old 11-30-2020, 07:55 AM
zaodrze244 zaodrze244 is offline
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I have a similar problem with my MP510 960GB.

When the disk is over 50% full the write performance decreases. I would like to know what to do in this situation? Send this disk to RMA?

Below you will find screenshots of the crystaldiskmark with different degrees of filling up the same disk.

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