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Maxtor drive can only recognize 279Gig out of 300gig


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I have Maxtor MaXLine III 7L300S0 300GB 7200 RPM Serial ATA150 Hard Drive as the title have said.. it can only recognize 279Gig out of 300gig drive. Why is that? 21gig is a lot to lose... I dont' mine 5 or 10 but 21? There must be something wrong... I plug the sata in port 4 and my 2 other drives are in port 1 and 2. Please give me an explaination. Thank you.

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The short answer: Harddrive companies lie.

 

The long answer: In windows, linux, and computers in general, 1 gb = 1024*1024*1024 = 1073741824 bytes. So, 300.0 gb = 322122547200 bytes. However, to harddrive manufacturers, 1gb = 1000*1000*1000 = 1000000000 bytes. So 300 gb = 300000000000 bytes.

 

If we do a conversion from their "gb" to real gb, we would take the advertised size * 1000000000 / 1073741824.

 

So, 300 * 1000000000 / 1073741824 = 279.39.

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