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Windows 7: after change to SATA AHCI mode in BIOS the drive shows removable

11 Jan 2012   #11

Windows 7 Home Premium 64 bit

Okay and thanks, I had the eSATA adapter put in when I bought the PC in 09, so yes it should have the driver and work in that AHCI mode.

My System SpecsSystem Spec
16 Jan 2012   #12

Windows 7 Home Premium 64 bit

This issue is all solved by installing the Intel Matrix Storage Manager which put in the Intel SATA AHCI drivers and now the sata port channels do look correct in the device manager under ATA controllers. Thanks for all the help, and happy computing.
My System SpecsSystem Spec
16 Jan 2012   #13
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit

Glad you have it sorted.

My System SpecsSystem Spec

13 Feb 2012   #14

Windows 7 Pro 64Bit

I have an external 2TB WD Hard Drive that is connected
to an E-SATA PCI Rail to my Biostar 790GXE Motherboard.

I boot and the external drive icon shows in My Computer,
I remove it and no drive. What are the advantages of AHCI, other
than not needing to be sure of a hard drive connect?
My System SpecsSystem Spec
13 Feb 2012   #15

Windows 7 Home Premium 64 bit

The main advantages to setting your sata to AHCI in the BIOS and having the correct drivers installed, are just a few. One main one is that eSATA becomes hot plug type function just like a USB connection, so your external hard drive does not need to be on during the boot. Just do a google search for AHCI and there is lots of information, Advanced Host Controller Interface - Wikipedia, the free encyclopedia , and AHCI allows for full power management features, and that mode also has faster performance too. See here; How Do I change from IDE to AHCI for my hard drives in windows 7? - Microsoft Answers
My System SpecsSystem Spec

 after change to SATA AHCI mode in BIOS the drive shows removable

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