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Can\'t boot from my second HD after changing to ADHI

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July 31, 2012 6:06:53 PM

After installing my SSD drive I changed from IDE to ADHI in the BIOs. How I can't boot from my second HD. I can select it but it won't boot. My first drive the SSD boots fine.

More about : boot changing adhi

July 31, 2012 6:24:06 PM

One of those days AHCI.....
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a b G Storage
July 31, 2012 7:57:41 PM

you should be reinstalling Win 7 now that you have a nice shinny new SSD.

(I would unplug the current drive till the reinstall is complete)
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July 31, 2012 8:20:48 PM

I did install Win7 on my SSD. But I had a second HD with Win7 that I used to be able to boot from since I changed to AHCI I can boot from that drive anymore.
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a c 144 G Storage
July 31, 2012 8:40:48 PM

Go to BIOS, in the boot HDs section (check your manual) change from SSD (SATA port1) to the HD you want, saving before you exit the BIOS.

After restart PC, you will boot from the HD. If you want to boot from SSD again, repeat it.
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a b G Storage
July 31, 2012 11:23:49 PM

your boot loader may be on the other drive.

you may have to reinstall.
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a b G Storage
August 1, 2012 3:42:08 AM

acfeldman said:
After installing my SSD drive I changed from IDE to ADHI in the BIOs. How I can't boot from my second HD. I can select it but it won't boot. My first drive the SSD boots fine.

You need change something else in“regedit” to avoid this problem.

1)Run the Registry Editor (regedit.exe)

2) Navigate to the location:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci

3) Set the "Start" value to 0 (zero)

4) Restart computer go into the BIOS-> configuration->change the disk mode to "AHCI" (IDE is set as default commonly ) . Save the new BIOS configuration and restart so that Windows boots.

When Windows starts, it will detect the change, load new disk drivers, and does one more reboot to start up with them.

5) Install the latest driver of your motherboard.

Note: This method only works in Windows 7, Windows XP could not support.
If your CPU is based on AMD platform, you need to do another step, download the “AMD RAIDXpert” from AMD official website, then log in it and turn on NCQ mode. This is important.
If your CPU is based on Intel platform, you need no to do this, the NCQ mode is turned on autonomic when you change ide to ahci and install the latest driver of motherboard.
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a c 379 G Storage
August 1, 2012 12:01:31 PM

Actually, he needs to switch his bios back to IDE to be able to boot from the hard drive. Once booted off the hard drive, then make the registry changes that quesionboy suggested. Now you can go back into the bios and switch it to AHCI and should be able to boot from the hard drive.
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