Switch e6510 qm57 chipset from IRRT to AHCI

Was called Intel Matrix Storage Manager (IMSM), now called Intel Rapid Storage Technology (IRST), of which subset Intel Rapid Restore Technology (IRRT) is implemented by Dell on notebooks for disaster recovery (notebooks generally don't need the full RAID functions included in IRST).

At some point, both Dell and Intel offered two downloads for your OS and chipset... the full IRST package including drivers and application that extract and install... and the drivers-only IRST package that extracts only the drivers and is intended for the user to then use for pre-OS installation of the storage device driver, as determined by the BIOS SATA mode selection. The drivers-only package can also be use to manually update the storage device driver from within Device Manager, which is required if the user installs an OS like Win7 that may have a default MS driver which should then be updated to the Intel driver.

So, look for the *latest* two IRST package downloads for your OS and chipset. The driver-only package is sufficient if using AHCI mode. Extract the drivers and expect to install them manually, either during the OS install, or via Device Manager, or otherwise.

When succesful, Windows will boot successfully with a working storage controller. AHCI mode should list an *Intel device and driver* in Device Manager under IDE ATA/ATAPI controllers. IRRT mode should list an *Intel SATA device and driver* under Storage controllers.

GK

 

thank John and GK
But GK, my Device Manager shows something else (in the picture)

 

No, your Device Manager shows that "AHCI mode should list an *Intel device and driver* in Device Manager under IDE ATA/ATAPI controllers".

Your Device Manager shows that your BIOS is set to AHCI mode, which enables the Intel device listed under 'IDE ATA/ATAPI controllers'.

Confirm that there is an Intel driver loaded for that device.

GK

 

can you take a picture of your Device Manager ? I don't know much.

 

No, I don't use a notebook at the moment.

GK

 

huu_tri0101,

To find out what driver is being used, use your right-mouse-button to click on the line that says "Intel(R) 5 series 6 port SATA AHCI controller" and select the popup-menu line Properties. (or just double click on the "Intel..." line). It'll open another window which shows the driver's provider, date and version.

 

Here is the reg file I created to work on the Dell Latitude E6410. I had to change the permissions of the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI keys to allow modifying, then imported. Some lines are commented out as they are not necessary.

Code:

Windows Registry Editor Version 5.00
;ADD AHCI SUPPORT

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\0001]
;"InfPath"="oem14.inf"
"InfSection"="iaStor_mobl_Inst"
"ProviderName"="Intel"
"DriverDateData"=hex:00,c0,a0,77,64,ba,ca,01
"DriverDate"="3-3-2010"
"DriverVersion"="9.6.0.1014"
"MatchingDeviceId"="pci\\ven_8086&dev_3b2f&cc_0106"
"DriverDesc"="Intel(R) 5 Series 6 Port SATA AHCI Controller"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\pci#ven_8086&dev_3b2f&cc_0106]
"ClassGUID"="{4D36E96A-E325-11CE-BFC1-08002BE10318}"
"Service"="iaStor"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_3B2F&SUBSYS_040A1028&REV_05]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_3B2F&SUBSYS_040A1028&REV_05\3&11583659&0&FA]
"DeviceDesc"="Intel(R) 5 Series 6 Port SATA AHCI Controller"
"LocationInformation"="PCI bus 0, device 31, function 2"
"Capabilities"=dword:00000000
"HardwareID"=hex(7):50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,\
  00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,33,00,42,00,32,00,46,00,26,00,\
  53,00,55,00,42,00,53,00,59,00,53,00,5f,00,30,00,34,00,30,00,41,00,31,00,30,\
  00,32,00,38,00,26,00,52,00,45,00,56,00,5f,00,30,00,35,00,00,00,50,00,43,00,\
  49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,\
  00,56,00,5f,00,33,00,42,00,32,00,46,00,26,00,53,00,55,00,42,00,53,00,59,00,\
  53,00,5f,00,30,00,34,00,30,00,41,00,31,00,30,00,32,00,38,00,00,00,50,00,43,\
  00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,\
  45,00,56,00,5f,00,33,00,42,00,32,00,46,00,26,00,43,00,43,00,5f,00,30,00,31,\
  00,30,00,36,00,30,00,31,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,\
  5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,33,00,42,00,32,\
  00,46,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,36,00,00,00,00,00
"CompatibleIDs"=hex(7):50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,\
  30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,33,00,42,00,32,00,46,00,26,\
  00,52,00,45,00,56,00,5f,00,30,00,35,00,00,00,50,00,43,00,49,00,5c,00,56,00,\
  45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,33,\
  00,42,00,32,00,46,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,\
  38,00,30,00,38,00,36,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,36,00,30,\
  00,31,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,\
  38,00,36,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,36,00,00,00,50,00,43,\
  00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,00,00,50,00,\
  43,00,49,00,5c,00,43,00,43,00,5f,00,30,00,31,00,30,00,36,00,30,00,31,00,00,\
  00,50,00,43,00,49,00,5c,00,43,00,43,00,5f,00,30,00,31,00,30,00,36,00,00,00,\
  00,00
"ClassGUID"="{4D36E96A-E325-11CE-BFC1-08002BE10318}"
"Service"="iaStor"
"ConfigFlags"=dword:00000000
"ParentIdPrefix"="4&2c160aa7&0"
"Driver"="{4D36E96A-E325-11CE-BFC1-08002BE10318}\\0001"
"Security"=hex:01,00,04,90,00,00,00,00,00,00,00,00,00,00,00,00,14,00,00,00,02,\
  00,4c,00,03,00,00,00,00,00,14,00,ff,01,1f,00,01,01,00,00,00,00,00,05,12,00,\
  00,00,00,00,18,00,ff,01,1f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,\
  00,00,00,18,00,00,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,21,02,00,00
"Class"="hdc"
"Mfg"="Intel"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_3B2F&SUBSYS_040A1028&REV_05\3&11583659&0&FA\Device Parameters]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_3B2F&SUBSYS_040A1028&REV_05\3&11583659&0&FA\LogConf]
"BasicConfigVector"=hex(a):88,02,00,00,05,00,00,00,00,00,00,00,5f,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,01,00,01,00,13,00,00,00,01,01,\
  01,00,31,00,00,00,08,00,00,00,01,00,00,00,90,70,00,00,00,00,00,00,97,70,00,\
  00,00,00,00,00,08,01,01,00,31,00,00,00,08,00,00,00,08,00,00,00,00,00,00,00,\
  00,00,00,00,ff,ff,00,00,00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,\
  00,00,04,00,00,00,01,00,00,00,80,70,00,00,00,00,00,00,83,70,00,00,00,00,00,\
  00,08,01,01,00,31,00,00,00,04,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,\
  ff,ff,00,00,00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,01,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,08,00,\
  00,00,01,00,00,00,70,70,00,00,00,00,00,00,77,70,00,00,00,00,00,00,08,01,01,\
  00,31,00,00,00,08,00,00,00,08,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,\
  00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,02,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,04,00,00,00,01,00,\
  00,00,60,70,00,00,00,00,00,00,63,70,00,00,00,00,00,00,08,01,01,00,31,00,00,\
  00,04,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,00,00,00,00,\
  00,81,01,00,00,00,00,00,01,00,00,00,03,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,20,00,00,00,01,00,00,00,20,70,\
  00,00,00,00,00,00,3f,70,00,00,00,00,00,00,08,01,01,00,31,00,00,00,20,00,00,\
  00,20,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,00,00,00,00,00,81,01,00,\
  00,00,00,00,01,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,01,03,01,00,00,00,00,00,00,08,00,00,01,00,00,00,00,00,94,96,00,00,\
  00,00,ff,07,94,96,00,00,00,00,08,03,01,00,00,00,00,00,00,08,00,00,00,08,00,\
  00,00,00,00,00,00,00,00,00,ff,ff,ff,ff,00,00,00,00,00,81,01,00,00,00,00,00,\
  01,00,00,00,05,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  02,03,00,00,00,00,00,00,00,00,00,ff,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00
"BootConfig"=hex(8):01,00,00,00,05,00,00,00,00,00,00,00,01,00,01,00,07,00,00,\
  00,01,00,01,00,90,70,00,00,00,00,00,00,08,00,00,00,01,00,01,00,80,70,00,00,\
  00,00,00,00,04,00,00,00,01,00,01,00,70,70,00,00,00,00,00,00,08,00,00,00,01,\
  00,01,00,60,70,00,00,00,00,00,00,04,00,00,00,01,00,01,00,20,70,00,00,00,00,\
  00,00,20,00,00,00,03,00,00,00,00,00,94,96,00,00,00,00,00,08,00,00,02,03,00,\
  00,0a,00,00,00,0a,00,00,00,ff,ff,ff,ff

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor]
"DisplayName"="Intel AHCI Controller"
;"ErrorControl"=dword:00000001
;"Group"="SCSI miniport"
;"Start"=dword:00000000
;"Tag"=dword:00000019
;"Type"=dword:00000001
;"ImagePath"=hex(2):73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\
;  52,00,49,00,56,00,45,00,52,00,53,00,5c,00,69,00,61,00,53,00,74,00,6f,00,72,\
;  00,2e,00,73,00,79,00,73,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters]
;"queuePriorityEnable"=dword:00000000
"BusType"=dword:00000003

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters\PnpInterface]
;"5"=dword:00000001

 

This is the registry keys to add to go from AHCI to IRRT. Again, tested on an E6410. And the Enum\PCI keys need to have permissions changed to edit them. Benefit of these two reg files I have attached, is a computer can now be switched from AHCI to IRRT anytime without BSOD.

Code:

Windows Registry Editor Version 5.00
;ADD IRRT RAID SUPPORT

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E97B-E325-11CE-BFC1-08002BE10318}\0000]
;"InfPath"="oem13.inf"
"InfSection"="iaStor_mobl_Inst_RAID"
"ProviderName"="Intel"
"DriverDateData"=hex:00,c0,a0,77,64,ba,ca,01
"DriverDate"="3-3-2010"
"DriverVersion"="9.6.0.1014"
"MatchingDeviceId"="pci\\ven_8086&dev_282a&cc_0104"
"DriverDesc"="Intel(R) ICH8M-E/ICH9M-E/5 Series SATA RAID Controller"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\pci#ven_8086&dev_282a&cc_0104]
"ClassGUID"="{4D36E97B-E325-11CE-BFC1-08002BE10318}"
"Service"="iaStor"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_282A&SUBSYS_040A1028&REV_05]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_282A&SUBSYS_040A1028&REV_05\3&11583659&0&FA]
"DeviceDesc"="Intel(R) ICH8M-E/ICH9M-E/5 Series SATA RAID Controller"
"LocationInformation"="PCI bus 0, device 31, function 2"
"Capabilities"=dword:00000000
"HardwareID"=hex(7):50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,\
  00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,32,00,38,00,32,00,41,00,26,00,\
  53,00,55,00,42,00,53,00,59,00,53,00,5f,00,30,00,34,00,30,00,41,00,31,00,30,\
  00,32,00,38,00,26,00,52,00,45,00,56,00,5f,00,30,00,35,00,00,00,50,00,43,00,\
  49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,\
  00,56,00,5f,00,32,00,38,00,32,00,41,00,26,00,53,00,55,00,42,00,53,00,59,00,\
  53,00,5f,00,30,00,34,00,30,00,41,00,31,00,30,00,32,00,38,00,00,00,50,00,43,\
  00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,\
  45,00,56,00,5f,00,32,00,38,00,32,00,41,00,26,00,43,00,43,00,5f,00,30,00,31,\
  00,30,00,34,00,30,00,30,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,\
  5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,32,00,38,00,32,\
  00,41,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,34,00,00,00,00,00
"CompatibleIDs"=hex(7):50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,\
  30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,32,00,38,00,32,00,41,00,26,\
  00,52,00,45,00,56,00,5f,00,30,00,35,00,00,00,50,00,43,00,49,00,5c,00,56,00,\
  45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,26,00,44,00,45,00,56,00,5f,00,32,\
  00,38,00,32,00,41,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,\
  38,00,30,00,38,00,36,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,34,00,30,\
  00,30,00,00,00,50,00,43,00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,\
  38,00,36,00,26,00,43,00,43,00,5f,00,30,00,31,00,30,00,34,00,00,00,50,00,43,\
  00,49,00,5c,00,56,00,45,00,4e,00,5f,00,38,00,30,00,38,00,36,00,00,00,50,00,\
  43,00,49,00,5c,00,43,00,43,00,5f,00,30,00,31,00,30,00,34,00,30,00,30,00,00,\
  00,50,00,43,00,49,00,5c,00,43,00,43,00,5f,00,30,00,31,00,30,00,34,00,00,00,\
  00,00
"ClassGUID"="{4D36E97B-E325-11CE-BFC1-08002BE10318}"
"Service"="iaStor"
"ConfigFlags"=dword:00000000
"ParentIdPrefix"="4&325a58d2&0"
"Driver"="{4D36E97B-E325-11CE-BFC1-08002BE10318}\\0000"
"Security"=hex:01,00,04,90,00,00,00,00,00,00,00,00,00,00,00,00,14,00,00,00,02,\
  00,4c,00,03,00,00,00,00,00,14,00,ff,01,1f,00,01,01,00,00,00,00,00,05,12,00,\
  00,00,00,00,18,00,ff,01,1f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,\
  00,00,00,18,00,00,00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,21,02,00,00
"Class"="SCSIAdapter"
"Mfg"="Intel"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_282A&SUBSYS_040A1028&REV_05\3&11583659&0&FA\Device Parameters]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_282A&SUBSYS_040A1028&REV_05\3&11583659&0&FA\LogConf]
"BasicConfigVector"=hex(a):88,02,00,00,05,00,00,00,00,00,00,00,5f,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,01,00,01,00,13,00,00,00,01,01,\
  01,00,31,00,00,00,08,00,00,00,01,00,00,00,90,70,00,00,00,00,00,00,97,70,00,\
  00,00,00,00,00,08,01,01,00,31,00,00,00,08,00,00,00,08,00,00,00,00,00,00,00,\
  00,00,00,00,ff,ff,00,00,00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,\
  00,00,04,00,00,00,01,00,00,00,80,70,00,00,00,00,00,00,83,70,00,00,00,00,00,\
  00,08,01,01,00,31,00,00,00,04,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,\
  ff,ff,00,00,00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,01,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,08,00,\
  00,00,01,00,00,00,70,70,00,00,00,00,00,00,77,70,00,00,00,00,00,00,08,01,01,\
  00,31,00,00,00,08,00,00,00,08,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,\
  00,00,00,00,00,81,01,00,00,00,00,00,01,00,00,00,02,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,04,00,00,00,01,00,\
  00,00,60,70,00,00,00,00,00,00,63,70,00,00,00,00,00,00,08,01,01,00,31,00,00,\
  00,04,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,00,00,00,00,\
  00,81,01,00,00,00,00,00,01,00,00,00,03,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00,01,01,01,00,31,00,00,00,20,00,00,00,01,00,00,00,20,70,\
  00,00,00,00,00,00,3f,70,00,00,00,00,00,00,08,01,01,00,31,00,00,00,20,00,00,\
  00,20,00,00,00,00,00,00,00,00,00,00,00,ff,ff,00,00,00,00,00,00,00,81,01,00,\
  00,00,00,00,01,00,00,00,04,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,01,03,01,00,00,00,00,00,00,08,00,00,01,00,00,00,00,00,94,96,00,00,\
  00,00,ff,07,94,96,00,00,00,00,08,03,01,00,00,00,00,00,00,08,00,00,00,08,00,\
  00,00,00,00,00,00,00,00,00,ff,ff,ff,ff,00,00,00,00,00,81,01,00,00,00,00,00,\
  01,00,00,00,05,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  02,03,00,00,00,00,00,00,00,00,00,ff,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00
"BootConfig"=hex(8):01,00,00,00,05,00,00,00,00,00,00,00,01,00,01,00,07,00,00,\
  00,01,00,01,00,90,70,00,00,00,00,00,00,08,00,00,00,01,00,01,00,80,70,00,00,\
  00,00,00,00,04,00,00,00,01,00,01,00,70,70,00,00,00,00,00,00,08,00,00,00,01,\
  00,01,00,60,70,00,00,00,00,00,00,04,00,00,00,01,00,01,00,20,70,00,00,00,00,\
  00,00,20,00,00,00,03,00,00,00,00,00,94,96,00,00,00,00,00,08,00,00,02,03,00,\
  00,0a,00,00,00,0a,00,00,00,ff,ff,ff,ff

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor]
"DisplayName"="Intel RAID Controller"
;"ErrorControl"=dword:00000001
;"Group"="SCSI miniport"
;"Start"=dword:00000000
;"Tag"=dword:00000019
;"Type"=dword:00000001
;"ImagePath"=hex(2):73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\
;  52,00,49,00,56,00,45,00,52,00,53,00,5c,00,69,00,61,00,53,00,74,00,6f,00,72,\
;  00,2e,00,73,00,79,00,73,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters]
;"queuePriorityEnable"=dword:00000000
"BusType"=dword:00000008

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStor\Parameters\PnPInterface]
;"5"=dword:00000001

 

Just used this information to change IRRT to ACHI on my E6410. This information was what I was looking for and it worked without a hitch. Thanks for the informative post and sharing the Registry key.

 

Nice guide! Thank you for providing the registry information!

I actually had to enter 0 (right click on start and change value), add the registry information and run the installer (Intel Rapid Storage Technology) all prior to reboot, or else I’ll just get BSOD error after changing from IRRT to AHCI mode in the BIOS.

Re-ran the WEI, and my performance went up in two areas!

I5 M520
WD Black Scorpion 250GB HDD
NVS3100M
4GB DDR

6.8
5.9
5.0
6.0
5.5