ReadSpeed interesting SSD result

  • SpinRite v6.1 Release #3
    The 3rd release of SpinRite v6.1 is published and may be obtained by all SpinRite v6.0 owners at the SpinRite v6.1 Pre-Release page. (SpinRite will shortly be officially updated to v6.1 so this page will be renamed.) The primary new feature, and the reason for this release, was the discovery of memory problems in some systems that were affecting SpinRite's operation. So SpinRite now incorporates a built-in test of the system's memory. For the full story, please see this page in the "Pre-Release Announcements & Feedback" forum.
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  • BootAble – FreeDOS boot testing freeware

    To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility with all file systems. In order to run SpinRite it must first be possible to boot FreeDOS.

    GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a BIOS. Once the means of doing that has been determined, the media created by SpinRite can be booted and run in the same way.

    The participants here, who have taken the time to share their knowledge and experience, their successes and some frustrations with booting their computers into FreeDOS, have created a valuable knowledgebase which will benefit everyone who follows.

    You may click on the image to the right to obtain your own copy of BootAble. Then use the knowledge and experience documented here to boot your computer(s) into FreeDOS. And please do not hesitate to ask questions – nowhere else can better answers be found.

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New member
Jan 3, 2021
Hello everyone,

Long time listener of the podcast and user of Spinrite here, but just signed up for the forums. Everything was clear, so never felt the need to. So I downloaded the Dos exe and ran it on my Dell Latitude 7280 26GB m.2 SSD. I'd like to mention the SSD felt snappy and in two years since I have this laptop I never did any particular maintenance on it, outside of not partitioning about 20GB from the get-go in order to boost the over-provisioning pool.

1st run:
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  256GB LITEON CV3-8D256-11 SATA      359.5   232.3   251.5   269.2   526.8

                  Benchmarked: Saturday, 2021-01-02 at 10:29

It was a bit all over the place, so I ran a L3 Spinrite. Results after Spinrite are much more consistent, but somewhat low (was expecting 500Mb/s or more):
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  256GB LITEON CV3-8D256-11 SATA      215.1   233.2   249.0   273.7   299.9

                  Benchmarked: Saturday, 2021-01-02 at 15:48

Any thoughts?

Last edited:
Update, tested a few days later (seems to be very consistent from a test to the next):
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  256GB LITEON CV3-8D256-11 SATA      214.3   233.0   264.9   271.7   291.2