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IDE ATA100 DH compatible with ATA133 Controller?

By Rabbit
Dec 13, 2004
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  1. IDE ATA100 HD compatible with ATA133 Controller?

    Hello!

    I recently read a thread here that asked if an ATA133 drive would work on an ATA100 controller...

    And I have the exact opposite question. Will an ATA100 hard drive work on an ATA133 controller? I desperately need a new system and the motherboard I'm thinking about buying only has one ATA100 controller, but it has two ATA133 controllers. If I had, for example, three ATA100 drives, I would have to put at least one of them on the ATA133 controller.

    (I tried to add a link to show you all some pictures of my poor laptop that is falling apart, but I think it wont let me... but I definitely need a new system)

    So as I start to buy parts for a new system, I may refer back to this forum. You guys seem to be pretty friendly and knowledgeable. Thanks! :)
  2. Yourm8e

    Yourm8e TS Rookie

    Yes, it will work. I have never seen a controler yet that was not Backwards compatible.
  3. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 8,165

    It will work indeed, but, if you put an ATA100 together with an ATA133 on the same IDE-channel, they will both run at the speed of the slowest, which in your case is ATA100. No big deal really.
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