SATA II Backward Compatible with SATA I?

[Tony]

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

 

[Rod Speed]

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.

 

[Tony]

Nope, more port vendor dependant.


Nope, it will normally work fine.


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