SATA II Backward Compatible with SATA I?

Should any SATA II (3.0 Gb/s) drive work fine when plugged into any SATA I
(1.5 Gb/s) connector? Or is it perhaps drive vendor-dependent? Or shouldn't
it work at all? (I have a Seagate SATA II that is working fine on a SATA I
connection to the motherboard without using the 1.5 Gb/s jumper on the
drive).

Tony

Tony <MyEmail@my.isp.net> wrote:

> Should any SATA II (3.0 Gb/s) drive work fine when plugged into any SATA I (1.5 Gb/s) connector?

Yes.

> Or is it perhaps drive vendor-dependent?

Nope, more port vendor dependant.

> Or shouldn't it work at all?

Nope, it will normally work fine.

> (I have a Seagate SATA II that is working fine on a SATA I connection to the motherboard without using the 1.5 Gb/s
> jumper on the drive).

And thats usually the case.

"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:6diai5F2jg3rU1@mid.individual.net...
> Tony <MyEmail@my.isp.net> wrote:
>
>> Should any SATA II (3.0 Gb/s) drive work fine when plugged into any SATA
>> I (1.5 Gb/s) connector?
>
> Yes.
>
>> Or is it perhaps drive vendor-dependent?
>
> Nope, more port vendor dependant.
>
>> Or shouldn't it work at all?
>
> Nope, it will normally work fine.
>
>> (I have a Seagate SATA II that is working fine on a SATA I connection to
>> the motherboard without using the 1.5 Gb/s jumper on the drive).
>
> And thats usually the case.

Yes, thanks. I found that on Wikipedia also. They note there that some
pre-2003 motherboards with Via and Sis chipsets are incompatible with the
3.0 Gb/s interface so manufacturer's such as Seagate put a jumper on the
drive so that it could be forced to 1.5 Gb/s mode. That jumper being there
made me wonder the compatibility question.

Tony