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What's DOS?
Posts: 1
Registered: ‎01-07-2011
Location: Germany
Views: 1,634
Message 1 of 3

M55 AHCI Support

Hi all,


I would like to know if the ThinkCentre M55 8808 does support AHCI... I know it has the ICH8 southbridge, but this does not necessarily mean it does support AHCI.


I'd be very grateful if somebody owning (or knowing) such a machine could tell me. Is there an AHCI option in the BIOS setup?


Thank you!


PS: I need an AHCI machine for testing a new AHCI device driver - not because I think it is so much better than IDE.

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 1,588
Message 2 of 3

Re: M55 AHCI Support

not all M55 supports ACHI, some version of the motherboard supported it, while some didn't. But Lenovo did not release a document that showed which motherboard version supported ACHI.

There is no ACHI option in the bios in my M55.

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Posts: 337
Registered: ‎03-29-2008
Views: 1,379
Message 3 of 3

Re: M55 AHCI Support

AHCI support has been dropped from -G/-GF boards on an earlier firmware release and, up to my knowledge, never restored. There must be something wrong with AHCI on these boards:


- Removes AHCI support from -G/-GF boards even if they have an AHCI-capable ICH SKU

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