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TRIM Check: Overview of an essential SSD TRIM functionality tester - Usage of the Software


By: | Utilities in Software | Posted: Feb 17, 2013 8:49 am

Usage of the Software

 

TRIM Check has no GUI, it runs in a command prompt window. The program is very simple and easy to use. You just copy it on the SSD and run it twice, waiting for at least 30 seconds to a minute between runs in order to ensure accurate results. With most SSDs where TRIM is functional, one minute between runs should suffice.

 

trim_check_an_essential_ssd_trim_functionality_tester_1

 

When executed for the first time, the program will write on specific locations on the SSD. It will then delete the written data and exit.

 

trim_check_an_essential_ssd_trim_functionality_tester_2

 

When you run it for the second time a minute later, it will try to read the exact same locations. If TRIM works you should get zeroes, plus a notification informing you that TRIM is functional.

 

If the data hasn't been zeroed-out you'll be notified that TRIM is not working or that it hasn't kicked-in yet. In this case I would recommend to wait for at least 10 minutes before running the program for a third time for definite results.

 

Also note that with some SSDs you may get FF instead of zeroes; this also means that TRIM is alive and doing its job. On the following screenshot I got non-working TRIM. This is an accurate result for my testbed because I also use a certain program that disables TRIM in order to ensure its SSD compatibility.

 

trim_check_an_essential_ssd_trim_functionality_tester_3

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