ICH7M limited to SATA-150?

Michael Butler imb at protected-networks.net
Thu Oct 30 16:00:44 PDT 2008

Jeremy Chadwick wrote:

> On Thu, Oct 30, 2008 at 01:47:48PM -0700, Xin LI wrote:
>> 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.
> Xin Li is correct -- the mobile version doesn't do SATA300.

Then there is a correction required to /sys/dev/ata/ata_chipset.c - mine
identifies itself as:

atapci0 at pci0:0:31:2:    class=0x010180 card=0xff101179 chip=0x27c48086
rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82801GBM/GHM (ICH7-M Family) Serial ATA Storage
    class      = mass storage
    subclass   = ATA

 .. where 0x27c4 is "legacy" mode and 0x27c5 is AHCI mode,


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