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When I reinstalled Windows I guess I screwed up and didn't set bios to AHCI. I sure thought I did. When I change won't boot. Is their any simple way to change it without having to reinstall Windows?

I noticed in Win update theirs is a driver Accuses Inc. storage driver but I don't think thats the problem.
 

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Before I start, it's actually "AHCI". It means "Advanced Host Controller Interface". (I've been seeing this very frequently this past week for some reason)

Anyway, here is an excerpt from a guide on OCZ's message board:

Change from IDE to AHCI Mode after Installation

Information: AHCI stand for Advance Host Controller Interface. AHCI is a hardware mechanism that allows software to communicate with Serial ATA (SATA) devices (such as host bus adapters) that are designed to offer features not offered by Parallel ATA (PATA) controllers, such as:
  • Hot-Plugging
  • Native Command Queuing (NCQ) -might improve computer/system/hard disk responsiveness, especially in multi-tasking environment
You can read more about AHCI mode HERE

Instruction: There is one way to fix this, although you need to have knowledge of registry editing.
The detailed steps from Microsoft website are as follows:
  • Exit all Windows-based programs.
  • Press [Win] + R or take the RUN option from the start menu.
  • Now type regedit there and press Enter Key to open up the Registry Editor Window.
  • If you receive the User Account Control dialog box, click Continue.
  • Locate and then click the following registry subkey:
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\msahci
  • In the right pane, right-click Start in the Name column, and then click Modify.
IDE%20to%20AHCI.jpg

  • In the Value data box, type 0 [3 is default], and then click OK.
IDE%20to%20AHCI%20modify.jpg
  • On the File menu, click Exit to close Registry Editor.
  • Restart your computer
  • Go to BIOS and enable AHCI, Save & Reboot
  • Another restart will be required to finish the driver installation.
Alternatively

Just download this Reg File and double-click to implement AHCI on your Windows-based computer.
Just remember to do the BIOS switch as well when you reboot.
 
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Quote:
Originally Posted by ocpokey;13075954
I'm laughing because I was just reading your sig TwoCables when I saw this pop up on the homepage. Sorry I don't have anything substantive to contribute beyond that excellent guide above.
It feels like it's about the 200th time I've seen "ACHI" in the past 7 days. It's almost like AHCI has suddenly gained a big increase in popularity.
 

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Quote:
Originally Posted by RonB94GT;13075983
ACHI wasn't really thinking.
eek.gif
Anyways Rep for the quick help.
hehehe

You're welcome.
smile.gif
 
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