ICH7M limited to SATA-150?

[Xin LI]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

Michael Butler wrote:
> Recently, I upgraded the disk in my Toshiba A105 with a 7200rpm SATA-II
> device but it seems to still talking at SATA-I speed :-(
> 
> atapci0: <Intel ICH7M SATA300 controller> port
> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x18b0-0x18bf at device 31.2 on pci0
> 
>  [ .. snip .. ]
> 
> ad0: 305245MB <FUJITSU MHZ2320BJ G2 0000001E> at ata0-master SATA150
> acd0: DVDR <MATSHITADVD-RAM UJ-841S/1.60> at ata1-master UDMA33
> 
> There don't appear to be any obvious 'compatibility jumpers' on the
> drive, so I'm wondering what gives?
> 
> Is it possible this is hard-coded into the BIOS?

Personally I don't really think ICH7M is capable to do SATA-300.  Intel
datasheet 307013, page 191 says:

                       Supported      Supported
3 Gb/s Transfer Rate
                     (Desktop Only) (Desktop Only)

My understanding is that ICH7- *M* does not support SATA-300 at all.

Cheers,
- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (FreeBSD)

iEYEARECAAYFAkkKHXMACgkQi+vbBBjt66DVTwCggPQ47SCFTdOGM7cwbvRYTdUF
DloAnij/DRaJl8BPAi+sb/Q886Ub4G9j
=kxTZ
-----END PGP SIGNATURE-----