2nd Drive not recognized after switching from IDE to AHCI and back again. - Techist - Tech Forum

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Old 08-02-2018, 02:22 PM   #1 (permalink)
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Default 2nd Drive not recognized after switching from IDE to AHCI and back again.


I decided to change from IDE to AHCI (using both: Bios and RegEdit).

System was really slow to boot, so I switched it back to IDE again,

But now my problem is that I still have the incredibly slow boot up and now my 2nd hard drive is not being recognized (even in Disk Management its not recognized)

I would appreciate any help.
I want to avoid re-installing windows.

is there any way to remove all the AHCI drivers and also to get my 2nd drive recognized again ?

Thank you

  • Windows 7
    Gigabyte Motherboard: GA-X58A-UD3R (Ver. 2)
    CPU: i7 950
    Graphics: PALIT GeForce GTX-470
    Memory: 12GB Kingston Hyper-X KHX1600C9D3K2/4GX (DDR3)
    ........... (All banks are full with identical RAM)
    Hard Drives:
    1GB WD (blue) for the OS
    2GB WD (black) for storage (not recognized)

These are the Values I used in the RegEdit:

For IDE mode:
msahci's START value is "3"
pciide's START value is "0"

For AHCI mode:
msahci's START value is "0"
pciide's START value is "3"

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ahci, ide, not recognized, slow startup, windows 7

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