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PSU 3.3v compatibility with SATA drives?

Discussion in 'General Hardware' started by titaniumx3, 1 Jun 2006.

  1. titaniumx3


    Joined: 11 May 2006

    Posts: 5,753

    I ordered a PSU only to discover the SATA plugs do not supply 3.3v. Do SATA drives use 3.3v? Is this anything to be worried about?

  2. semi-pro waster

    Man of Honour

    Joined: 27 Sep 2004

    Posts: 25,829

    Location: Glasgow

    I'm no doubt being very dumb here but from what I read the PSU has SATA connectors? If so they will power any SATA drive you have regardless of 3.3v, hard drives don't use the 3.3v line anyway:)
  3. titaniumx3


    Joined: 11 May 2006

    Posts: 5,753

    Thanks for the reply!

    The PSU in question is the "Hiper HPU-4M580 Type R 580W ATX2.2 PSU" and I read on a German review that the SATA power connectors do not supply 3.3v. It did say something about problems occuring with future drives, which got me worried as I'm probably going to end up buying new drives sometime in the future and I plan to keep the PSU for a long time. Anyways, cheers for the reply!
  4. split


    Joined: 2 Nov 2002

    Posts: 3,534

    Location: Dorset

    Hmmm the latest WD RaptorĀ® X uses..

    Current Requirements
    12 VDC
    Read/Write 470 mA
    Idle 375 mA
    Standby 18.75 mA
    Sleep 18.75 mA

    5 VDC
    Read/Write 875 mA
    Idle 938 mA
    Standby 488 mA
    Sleep 450 mA