2 Replies Latest reply on Nov 9, 2012 7:58 AM by Klemen

    Intel 520 180GB sudden write speed degradation


      I have a brand new SSD Intel 520 180GB.

      The sequential write speeds were around 220 MB/s at first (using SATA 2 here).

      After just a few benchmarks and Windows 8 installation it's down to 170-180 MB/s.


      The read speed is always the same, it's only the write speed that dropped.


      I formatted and even completely erased the SSD with diskpart "clean all", but it didn't help. Ran the SSD Toolbox optimizer, scanned the drive.. no errors or anything, I just can't get the write speeds back to normal.


      Any ideas?

      I can post the pictures from benchmarks if you're interested.

      Here's the screenshot from HDTune after the speed drop:


      Does this look normal?


      I'm using Windows 7 64, Gigabyte P55A-UD4, "native" SATA port (not Marvell).