AHCI drive order

[Orsi]

Simple question:

Why my Sata hard disks arent shown in the same order as their Sata ports?

I mean, why the HD connected to port 4 is listed as the first hard disk? Also why seems that Windows 7 setup changes HDs order if the controller is in AHCI instead of Sata?

Its pretty boring to not know which letter they will receive before hand, specially in an unattended setup...

Tks

[Tripredacus]

Normally you should connect your HDD to port 0. Windows doesn't report disk numbers based on ports. It reports them in the order that they are enumerated by the OS. There is an underlying order of priority for disk numbering, HDDs first, then ODDs then USB. However, in rare occasions some devices that connect through the HDD channel like card readers or even USB keys can be potentially detected as Disk 0. That behaviour normally happens in a WinPE since the boot volume is a RAMDISK. If Windows is booted from the HDD, it should also make that HDD Disk 0.

[tikal01]

hi,

My BIOS is not detecting my Western Digital 320GB SATA HDD on my new build (OS not installed yet).

My DVD Burner, which is also SATA is detected and works fine.

thank's

[Tripredacus]

hi,

My BIOS is not detecting my Western Digital 320GB SATA HDD on my new build (OS not installed yet).

My DVD Burner, which is also SATA is detected and works fine.

thank's

We have a section for questions like that. Ask it there.

http://www.msfn.org/board/forum/169-hard-drive-and-removable-media-issues/