hard drive - Changing SATA HDD speed with jumper

  • David McDavidson

    I'm having some problems using a new Samsung SATA 2 500gb HD with an Asus K8V-X motherboard. This question, also made by me, is related.

    Found this forum post on google where someone said that the motherboard might not have support for SATA 2 HDDs, even thought SATA is supposed to be backward compatible. I'd have to limit my new HDD speed to SATA 1 and maybe my motherboard would recognize it. The problem is I don't know how to set it to SATA 1. I found manuals here but they do not mention anything about limiting SATA HDD speed by placing jumpers. They only describe how to set PATA drives to master, slave or cable select. How can I set my SATA 2 HDD to SATA 1 with jumpers?

  • Answers
  • Gopinath

    Please go through it, it might solve you problem.


  • Related Question

    Why does a SATA hard drive have jumpers?
  • eleven81

    Back in the days of PATA hard drives, a person used jumpers on the drive to indicate whether the drive was the master or the slave of the channel, or to let the cable select which drive was which.

    SATA drives are one-per-channel, one-per-cable, etc.

    What are the jumpers for on SATA hard drives?

  • Related Answers
  • Snark

    Some SATA drivers have jumpers for extra features, or for troubleshooting.

    Example from the manual of a Western Digital SATA disk:

    Set the Jumpers

    The default setting for WD SATA hard drives varies depending on the model. To determine the default setting for your drive, look at the drive label on the top of the drive.

    DO NOT change the default setting if you intend to use the drive in a desktop computer.

    Change the jumper settings ONLY if you intend to use the drive in an enterprise storage environment. For more information on these advanced settings, obtain the full version WD SATA Installation Guide at support.wdc.com.

    SSC_DIS Mode (Default) — Enable or disable the spread spectrum clocking feature. Default setting is disabled.

    OPT1 — Only for factory use.

    OPT2 — Only for factory use.

  • quack quixote

    On SATA-II drives, a jumper is sometimes used to set the drive into SATA-I mode for compatibility with older controllers.

  • dlux

    Some SATA drives have jumpers to enable/disable 3Gb/s functionality or other backwards compatibility items.

  • sYnfo

    See for example this.

  • CesarB

    On a Seagate ST3500320AS, there are four pins in the jumper block. You put a jumper between two of them to limit the drive to 1.5Gb/s instead of 3Gb/s, as explained in the manual. But what are the other two?

    As shown on this page, the other two pins (plus the nearest of the pair of pins used to limit the drive speed, which is a ground) make a serial port, which talks directly to the drive firmware!