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HDD RPM

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by choppit Sep 24, 2005 last reply Sep 28, 2005

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Does anyone know how drive manufacturers came to standardise drive rpm at 4K5/5K4/7K2/10K and 15K. Why not 8K or 13K?

Is it linked to servo technology,physics or purely arbitrary.

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This might help answer your question.
Start at page 41->

www.interbusclub.com/en/doku/pdf/driv_22_e.pdf

Cheers !
Doug

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