Windows 8 and 8.1 Forums

SSD but no AHCI, how much do I need to worry about TRIM?

  1. #1

    Posts : 2
    Win 8.1 Pro, 64 bit

    SSD but no AHCI, how much do I need to worry about TRIM?

    I recently picked up a used Dell 620s cheap to replace a workstation I built over 10 years ago, and tide me over until I save up enough to build a more robust machine. I figured I could give it a boost with an SSD for the boot drive, which I could then migrate to the new machine too. The BIOS has no options for AHCI so I understand that the drive will be handled in an IDE mode. The functionality that I am missing by AHCI does not concern me, except for the references to TRIM. So the BIOS does not support passing the TRIM function, but some things I have read suggest that the Samsung Magician software is able to do it? It appears that Windows 8 will recognize the drive as an SSD, is it smart enough to send TRIM to the SSD occasionally too? Or do I use the Samsung software periodically to refresh the SSD?. Or is the SSD on its own to handle garbage collection in my system, causing it to wear out prematurely?

    Installing the Samsung 840 EVO 120 GB tonight (and reinstalling Win 8 on it) so I will update this with anything I notice in the process...

      My System SpecsSystem Spec

  2. #2

    San Jose - California
    Posts : 2,846
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64

    After Windows Installation, you can try if you can enable trim this way. You can open the Admin Command prompt and type:
    fsutil behavior query DisableDeleteNotify

    DisableDeleteNotify = 0 : TRIM is already enabled and working in Windows
    DisableDeleteNotify = 1 : TRIM is not enabled

    To enable SSD TRIM support in Windows
    fsutil behavior set DisableDeleteNotify 0
      My System SpecsSystem Spec

  3. #3

    Posts : 2
    Win 8.1 Pro, 64 bit

    Result was DisableDeleteNotify = 0. That makes me feel better. Thanks for the prompt, concise assistance.
      My System SpecsSystem Spec

SSD but no AHCI, how much do I need to worry about TRIM?

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