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How do I tell if a SATA port is SATA 1, 2, or 3?

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January 30, 2014 2:16:06 PM

How do I tell if a SATA port is SATA 1, 2, or 3 on my motherboard. If this helps it's the motherboard from a Dell XPS 435MT. And also will SATA 1 or 2 bottleneck 7200RPM drives? I know 3 won't because that can't even bottle neck SSDs at the moment.

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a b G Storage
January 30, 2014 2:22:13 PM

Almost positive it's SATA 2.
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a b G Storage
January 30, 2014 2:26:56 PM

That motherboard is likely to have SATA II with the intel chipset. It may have a third party controller that offers SATA III.

SATA I 1.5Gbps
SATA II 3.0Gbps
SATA III 6.0Gbps

Mechanical drives don't really need anything faster then SATA II, even then that is accommodate quick transfers from the cache. Most 7200RPM drives top out between 120 and 140 MB/s

SATA III is actually saturated by the faster SSDs at around 550 MB/s. A new standard will be available called SATA Express in the near future. SATA III will be the consumer standard for the next several years.
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a c 523 G Storage
January 30, 2014 3:07:47 PM

tachybana said:
Page 36 here says that is has SATA 3 connections as well


That's not the speed of the port, that's the port number. As Getochkn stated all 4 SATA ports are more than likely SATA 2 (3Gb/s).

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January 30, 2014 8:46:35 PM

Dereck47 said:
tachybana said:
Page 36 here says that is has SATA 3 connections as well


That's not the speed of the port, that's the port number. As Getochkn stated all 4 SATA ports are more than likely SATA 2 (3Gb/s).



No tachybana is right, I just read it, it says there is one SATA 3 port.
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