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SATA 1 versus SATA 2 Compatibility

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scorch

Post subject: SATA 1 versus SATA 2 Compatibility

Posted: December 18th, 2009, 12:23

Joined: November 18th, 2009, 0:46
Posts: 18
Location: Louisville, KY

Does anyone have any documentation around compatibility of SATA 1 and SATA 2 drives?

For example I believe SATA 2 switched to an AC Coupled method, but SATA 1 is DC Coupled. This seems to cause compatibility issues with certain controller chipsets out there.

So I am just curious if anyone has any more information.

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guru

Post subject: Re: SATA 1 versus SATA 2 Compatibility

Posted: December 18th, 2009, 12:39

Joined: May 5th, 2004, 20:06
Posts: 2782
Location: England

There are a few electrical specs for this... SATA interface defined as Gen1i may be AC or DC coupled .The SATA interfaces defined as Gen1x, Gen2i, Gen2x shall be AC-coupled.

I think this is decided at the connector.. Let you do some digging. Try SATA org and this link is quite good

http://www.t10.org/ftp/t10/document.05/05-077r1.pdf

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scorch

Post subject: Re: SATA 1 versus SATA 2 Compatibility

Posted: December 18th, 2009, 14:07

Joined: November 18th, 2009, 0:46
Posts: 18
Location: Louisville, KY

thanks guru!!

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