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Hard Drive Support Support Forum for hard drives; Western Digital, Seagate, Maxtor, Toshiba

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Old 01-27-2008, 02:29 PM   #1 (permalink)
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question about hard drives

wat is the difference between SATA I and SATA II? i have a dell dimension E521 AMD 3600+ dual core. Would I need to buy SATA I or II for extra internal hard drive?
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Old 01-27-2008, 04:38 PM   #2 (permalink)
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Re: question about hard drives

This table shows the real speed of SATA 1.5 Gb/s and SATA 3 Gb/s:
SATA 1.5 Gb/s SATA 3 Gb/s
Frequency 1500 MHz 3000 MHz
Bits/clock 1 1
8b10b encoding 80% 80%
bits/Byte 8 8
Real speed 150 MB/s 300 MB/s
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Old 01-28-2008, 12:49 AM   #3 (permalink)
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Re: question about hard drives

If you want to have better performance, yes, please buy the SATA II.
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