Gentoo Archives: gentoo-user

From: Paul Hartman <paul.hartman+gentoo@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] AHCI/IDE-question
Date: Fri, 21 Jan 2011 21:59:15
In Reply to: [gentoo-user] AHCI/IDE-question by
1 On Fri, Jan 21, 2011 at 12:45 PM, <meino.cramer@×××.de> wrote:
2 >
3 > Hi,
4 >
5 > I got a little confused about the sense or nonsense of AHCI vs. IDE.
6 >
7 > I run a ASUS Crosshair IV Formula, which BIOS has a menu entry to
8 > configure the SATA ports either for IDE or AHCI or RAID. Forget RAID
9 > for a momen -- I dont use it (nothing against RAID ! ;)
11 Consider "IDE" to mean "Compatibility mode".
13 I just RTFM for your manual, it tells that if you want to use NCQ or
14 hot-plugging you must enable AHCI in BIOS.
16 I have a Gigabyte motherboard and it's the same way. If I use "IDE"
17 mode, kernel must use a different driver (it's still not really IDE.
18 When I use AHCI, it uses the ahci driver in kernel and all features
19 and full speed are available.
21 I think it's a bad name, just like "Keyboard: DOS/USB" setting, when
22 "DOS" really means "PS/2 Emulation from BIOS" or whatever.
24 So, use AHCI, be happy. ;)