Kalyway and GeForce 8400 GS

Sorry, I have 10.5.2 Kalyway.

EFI string? Not sure how to do that.

But the nvidia installer has an option for EFI Studio. Anyhow I think it appears from other posts that the installer does that efi string for me. I guess I will try and see.

After I update to 10.5.5 using Combo Updater from Apple.

I'm pretty sure you could just use an EFI string for your 8800GS card and it would solve all these problems... although I am still a bit confused why (or even how for that matter) you have to update to 10.5.5 with a 10.5.5 kalyway disc... ?

8400GS 256mb with QE/CI

i removed the EFI strings from com.apple.boot.plist & now i've QE/CI with NVinject woo hooo. took me three miserable weeks including a fatal crash which i somehow recovered(always backup your extensions via OSx86 tools!) to figure this one out...

i have attached a few NVinject kexts with this - i don't remember which one worked for me - i don't even know why i installed EFI strings in the 1st place...all the very best for you QE/CI...yes, you can do it...

here's how to remove the EFI strings:

sudo -s
  [enter password when prompted]
  nano /Library/Preferences/SystemConfiguration/com.apple.Boot.plist

This will take you to a text editor showing you the contents of your com.apple.Boot.plist. Look for these two lines:

<key>device-properties</key>
  <string>YOUR LONG EFI STRING HERE</string>

Using your arrow keys, navigate the block cursor down to each of those two lines and hit CONTROL+K on both. This will cut the corresponding line out of the script (quicker than hitting the delete button, trust me).

When you're done, hit CONTROL+X and then Y, and ENTER to save the file. Now simply restart OSX, and you should boot up again without EFI strings.