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koitsu
Premium,MVM
join:2002-07-16
Mountain View, CA
kudos:23
reply to bbear2

Re: [hard drive] AHCI or IDE mode? New build Win 7 64-bit

said by bbear2:

Thanks for confirming and the additional boot reminders. But why is it under the RAID category? This seems to imply if you're not using RAID, then you don't get the AHCI choice.

Because the motherboard (thus BIOS) manufacturer chose to put it there. The more blunt/crass version: some Chinese guy in Taiwan decided it should go under the RAID category, rather than classifying it as "SATA Mode" like it should be. Seriously, that really is the only answer.

Both modes -- RAID and AHCI -- use an option ROM, but the behaviour of the option ROM is very, very different depending on which mode you pick. RAID mode uses AHCI, but AHCI does not use RAID.

Nothing I can do about motherboard/BIOS manufacturers choosing to name/classify their stuff stupidly. You'll just have to trust me.
--
Making life hard for others since 1977.
I speak for myself and not my employer/affiliates of my employer.


Boricua
Premium
join:2002-01-26
Sacramuerto

said by koitsu:

Nothing I can do about motherboard/BIOS manufacturers choosing to name/classify their stuff stupidly. You'll just have to trust me.

I agree. My job has been buying the HP Z600 and in the BIOS the only choice is RAID or IDE. In their 8000 Elite's and the 8200's, the choice is there for AHCI. Go figure. (And the Z600 is the more powerful desktop).
--
Illegal aliens have always been a problem in the United States. Ask any Indian. Robert Orben