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Harddrives,,possble conflicts?

Discussion in 'PC Hardware' started by coadman, 2005/02/01.

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  1. 2005/02/01
    coadman

    coadman Inactive Thread Starter

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    I have a Western Digital Harddrive in my present computer. Will adding an additional harddrive, by another manufacturer(Maxtor or Seagate), cause any compatiability problems? What is the differance between ATA/133 and ATA/100? Is "speed" the only differance, and are they "cross" compatiable?
    thanks,
    coadman
     
    coadman,
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  2. 2005/02/03
    mattman

    mattman Inactive Alumni

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    Hi coadman,

    There should not be any compatibilty problems. Some old drives I have worked on like being set as master, but you should not see that nowadays.

    ATA133 should be quicker than ATA100, but some drive manufacturers cannot see a great deal of increased speed and do not make ATA133 drives. The main factor in drive speed is the RPMs.

    UltraATA 133 "runs as" DMA mode 6. UltraATA 100 runs as DMA mode 5. Your motherboard needs to support the higher DMA or it will run the drive as the highest setting it can.

    (mmm...a tip?) If you set up a drive using the manufacturer's utilities, avoid installing a Dynamic Drive Overlay.

    Matt
     
    Last edited: 2005/02/03
    mattman,
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  4. 2005/02/03
    Christer

    Christer Geek Member Staff

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    That refers to the maximum capacity of the interface. Most drives can not reach those transfer rates, neither sustained nor as burst rates but the latest high density platters can.

    The most recent drives have ~125 GB per platter and yield maximum data rates of over 800 Mb/s (Megabits per second) which with 8 bits per byte equals 100 MB/s (Megabyte per second) = ATA-100.

    Have a look in the specs for the drives and if they are below those figures, ATA133 is ...... :rolleyes: ...... only a marketing trick!

    Christer
     
    Christer,
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