Problem enabling AHCI under Vista x64

External Since: Jan 06, 2008 Posts: 1

I'm having trouble enabling AHCI under Windows Vista Business x64.

I initially installed the OS with AHCI enabled in the BIOS, but I
receive stop code 7B upon reboot. The only way to get the OS to boot is
to disable AHCI in the BIOS. The last time I installed the OS, I was
able to apply a registry patch and manually copy IaStor.sys (from the
Intel Matrix Storage Manager driver) into the \Windows\System32\drivers
folder. This would allow me to boot and run the system with AHCI
enabled, and utilize the Intel Turbo Memory flash cache module I
installed. I also made sure that Msahci.sys was set to start on boot as
per the instructions at http://support.microsoft.com/kb/922976.

Now, for some reason, this procedure no longer works. I still receive
stop code 7B upon reboot.

(Note that I am not able to install the Intel Matrix Storage Manager
driver or the Intel Turbo Memory driver until after AHCI is working.
Attempting to do so results in an error message that my system "does not
meet the minimum requirements".)

I'm trying this on a Dell Vostro 1500 with a PM965 chipset and ICH8 I/O
controller hub.

This is the contents of the registry file I'm using:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\CriticalDeviceDatabase\PCI#VEN_8086&DEV_2922&CC_0106]
"Service"="iaStor"
"ClassGUID"="{4D36E96A-E325-11CE-BFC1-08002BE10318}"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor]
"Type"=dword:00000001
"Start"=dword:00000000
"Group"="SCSI miniport"
"ErrorControl"=dword:00000001
"ImagePath"="system32\\drivers\\IaStor.sys"
"tag"=dword:00000019
"DisplayName"="Intel AHCI Controller"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters]
"queuePriorityEnable"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Enum]
"0"="PCI\\VEN_8086&DEV_2922&SUBSYS_B0051458&REV_02\\3&13c0b0c5&0&FA"
"Count"=dword:00000001
"NextInstance"=dword:00000001

Any ideas?

Thanks in advance!

--
Posted via a free Usenet account from http://www.teranews.com

External Since: Nov 07, 2003 Posts: 2178

Typical of MS to turn the solution to the driver problem into
a problem itself. The fis is not to use Vista (and if you have to,
you have my condolences...)

Arno

In comp.sys.ibm.pc.hardware.storage f0gger <f0gger.DeleteThis@aim.com> wrote:
> I'm having trouble enabling AHCI under Windows Vista Business x64.

> I initially installed the OS with AHCI enabled in the BIOS, but I
> receive stop code 7B upon reboot. The only way to get the OS to boot is
> to disable AHCI in the BIOS. The last time I installed the OS, I was
> able to apply a registry patch and manually copy IaStor.sys (from the
> Intel Matrix Storage Manager driver) into the \Windows\System32\drivers
> folder. This would allow me to boot and run the system with AHCI
> enabled, and utilize the Intel Turbo Memory flash cache module I
> installed. I also made sure that Msahci.sys was set to start on boot as
> per the instructions at http://support.microsoft.com/kb/922976.

> Now, for some reason, this procedure no longer works. I still receive
> stop code 7B upon reboot.

> (Note that I am not able to install the Intel Matrix Storage Manager
> driver or the Intel Turbo Memory driver until after AHCI is working.
> Attempting to do so results in an error message that my system "does not
> meet the minimum requirements".)

> I'm trying this on a Dell Vostro 1500 with a PM965 chipset and ICH8 I/O
> controller hub.

> This is the contents of the registry file I'm using:

> Windows Registry Editor Version 5.00

> [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\CriticalDeviceDatabase\PCI#VEN_8086&DEV_2922&CC_0106]
> "Service"="iaStor"
> "ClassGUID"="{4D36E96A-E325-11CE-BFC1-08002BE10318}"

> [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor]
> "Type"=dword:00000001
> "Start"=dword:00000000
> "Group"="SCSI miniport"
> "ErrorControl"=dword:00000001
> "ImagePath"="system32\\drivers\\IaStor.sys"
> "tag"=dword:00000019
> "DisplayName"="Intel AHCI Controller"

> [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters]
> "queuePriorityEnable"=dword:00000000

> [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Enum]
> "0"="PCI\\VEN_8086&DEV_2922&SUBSYS_B0051458&REV_02\\3&13c0b0c5&0&FA"
> "Count"=dword:00000001
> "NextInstance"=dword:00000001

> Any ideas?

> Thanks in advance!

> --
> Posted via a free Usenet account from http://www.teranews.com