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Enable raid on amd without a reinstall


crjdriver's Avatar
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08-Dec-2012, 03:26 PM #1
Enable raid on amd without a reinstall
If anyone is interested, I have come up with a method to enable raid on amd systems without a reinstall. The intel chipset boards were pretty easy however amd has always given me a bsod when doing this [until now]
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Triple6   (Rob) Triple6 is offline
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08-Dec-2012, 06:18 PM #2
Do what now?
crjdriver's Avatar
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08-Dec-2012, 07:04 PM #3
I am writing up the instructions so they make sense to the average user.
crjdriver's Avatar
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08-Dec-2012, 07:26 PM #4
How to enable raid on an amd chipset mb without a reinstall of windows 7. Intel systems are pretty easy to accomplish this task however I have never been able to successfully get an amd chipset system to enable raid without a reinstall; until now.

First off, a clean install is really the best way to accomplish this task however if you are lazy like me, you can apply the following procedure.
1 Before doing anything, make an image of your system drive so if you mess something up, it is a simple matter to restore the image. I cannot stress this part enough; make a backup.

2 Download the raid drivers for your mb

3 Open regedit and navigate to this key
In the right hand side you should see a value labeled start. Right click and select modify. Change the value to 0. Quit regedit.

4 In reference to the raid drivers you downloaded, copy the .sys file to the windows\system32\drivers folder. As an example mine was ahcix64s.sys; yours may have a different name. If yours does have a different name, change any reference to the file name in the reg text below.

5 Copy the following text into note pad and save it with a .reg suffix; ie call it reg hack.reg or whatever you want as long as it has the .reg suffix.
Copy below this line

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\CriticalDeviceDatabase\pci# ven_1002&dev_4393&cc_0104]
"Group"="SCSI Storport"
"DisplayName"="AMD AHCI Compatible RAID Controller"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\ahcix64s\Parameters\Pn pInterface]

Copy above this line

6 Double click on the .reg file you saved and when prompted if you want to import this into the registry, answer yes.

7 Restart your system and enter the bios. Change the sata mode to raid; save settings and restart. Your system will now bootup in raid mode.

8 You will get a message that you need to restart; do so.

9 Now go to device manager. The raid controller will be listed and will most likely have a yellow mark. Just click and choose to update driver. Point it at where you downloaded your mb drivers in step #2. Restart when prompted and you are done.
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Last edited by crjdriver; 08-Dec-2012 at 10:41 PM..
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Oddba11   (Jim) Oddba11 is offline
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12-Dec-2012, 08:22 PM #5
When would you use this?

RAID is for using multiple HDD's. Simply "enabling" RAID in the OS, does nothing without having multiple HDD's installed. The reason for the fresh install, is that after multiple drives are installed, the data has to be spread across the drives (based on RAID mode selected). But I'm sure you know all of this, or at least you should if you are messing with RAID.
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13-Dec-2012, 03:45 PM #6
Very easy to use;
1 Enable raid
2 Make an image using acronis; store on external, disk not part of array, etc.
3 Install second disk that is to be part of the array
4 Enter raid bios and create array
5 Boot with acronis boot disk and restore the image to the array

You now have a raid setup without reinstalling.
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managed   (Allan) managed is offline
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13-Dec-2012, 09:27 PM #7
To use a different driver I think you would have to change the driver .sys filename accordingly AND edit the PCI\\VEN_ line to match.

I.E. XP 32bit driver for AMDŽ 790GX / SB750 chipset is Ahcix86.sys with PCI\VEN_1002&DEV_4380 ...
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