Sata power cable

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  • Gabriel
    Badcaps Veteran
    • Jan 2010
    • 620
    • Norway
    #1

    Sata power cable

    For a project I'm modifying a sata powercable for use with 2.5" ssd only so I removed 3.3V and 12V cable to only to keep 5V and ground.

    Does it matter which of the two ground cables I keep ?
    Attached Files
    Tags: None
    • momaka
      master hoarder
      • May 2008
      • 12175
      • Bulgaria
      #2
      Re: Sata power cable

      Wouldn't the 2.5" SSD work with those voltage still attached? I know the regular 2.5" SATA HDDs have on problems when hooked up to a desktop power supply.

        Comment

        • Gabriel
          Badcaps Veteran
          • Jan 2010
          • 620
          • Norway
          #3
          Re: Sata power cable

          Yes the ssd's would still work but I'm using a meanwell supply with 5V output so I removed the extra cables I don't need.

          After googling this I found out it's best to keep the ground cable next to the yellow 12V wire, the drive will always power on and not wait until spoken to.

          From wikipedia
          If pulled down at the connector (as it is on most cable-style SATA power connectors), the drive spins up as soon as power is applied. If left floating, the drive waits until it is spoken to. This prevents many drives from spinning up simultaneously, which might draw too much power.
          Attached Files
          Last edited by Gabriel; 04-19-2016, 04:14 AM.

            Comment

            • Behemot
              Badcaps Legend
              • Dec 2009
              • 4845
              • CZ
              #4
              Re: Sata power cable

              Never got any problem running 2.5'' drives on desktop. Well, once I got some I/O problems, maybe data cable was seated wrong, but that unit was already bad on sectors.
              Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

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