my seq read speed is above 540mbps all the time but my seq write speed starts at approximately 400mbps and goes down pretty fast, why? i get lik 180-150-200 write speed in benchmarks
Thanks for posting in our communities. We understand that you're experiencing a relatively slow sequential write speed on your Intel® SSD E 5400s Series.
In order to better assist you, please provide us with following information:
- What tool are you using for benchmarks?
- Please download and run the https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-?product=91... Intel® System Support Utility and share the resulting report with us. This will provide us with the exact SSD model and your system general specs.
Thanks for your reply.
The https://ark.intel.com/products/94440/Intel-SSD-E-5400s-Series-120GB-2_5in-SATA-6Gbs-16nm-TLC Intel® SSD E 5400s Series (120GB, 2.5in) official benchmark sequential write is up to 400 MB/s. Please note that these results were taken from a fresh OS installation (Windows 7* SP1), with the SSD connected as a secondary unit and no data on it.
From the log provided, we can see the Intel® SSD E 5400s Series is your boot drive. That plus several processes running on the back will affect the results. To obtain benchmark numbers closer to the advertised, we recommend to run a secure erase on the SSD and connect it as a secondary unit if possible.
Let us know if there's anything else we can do for you.
A secure erase is recommended in this case. However, since this is your current boot device, Windows* will not allow you to wipe the SSD.
If you can connect it to a different system or boot from a different drive, you can use Microsoft DiskPart* to secure erase the SSD as shown https://www.intel.com/content/www/us/en/support/articles/000022179/memory-and-storage.html here. If this is not an option, you may proceed with a fresh OS installation.
Please bear in mind that if you're planning to keep using the Intel® SSD E 5400s Series as your boot drive, the results might not vary from the current installation.