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Windows 7, White 24" iMac, nvlddmkm.sys BSOD..

I've tried a myriad of different solutions to resolve my problem. I can get the drivers to work without BlueScreens, however my secondary monitor looks like crap. It will not go over 1024x768 resolution, almost making text unreadable. I've tried the method of changing 6.1 => 6.0 in currentversion, I've tried installing using compatibility mode of the bootcamp (leopard dvd), tried downloading drivers direct from nVidia, however after reboot, its the normal nvlddmkm.sys bsod. I have to remove that file to reboot and then I can get in.

Anyone have a valid working solution for this?

Macbook late '08, Mac OS X (10.5.6)

Posted on May 5, 2009 7:19 AM

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7 replies

May 8, 2009 10:24 AM in response to The hatter

it's not a problem with the install method, it's an issue with the video driver itself, and seems to be specific to the nvidia 24" white imac. When i get the bsod part way thru the install, you can flip back to leopard and finish the install no problem in vmware (where the nvidia driver isn't loaded). Reboot back to native, same BSOD

This happens with any current version of any nvidia driver- the release one on the windows 7 RC dvd, the one availible in software update, and the latest one from nvidia's site. you can delete the nviddmkm.sys, but then you obviously only get svga driver. I once had a bootcamp vista nvidia driver working w/ the beta, but it was unstable even then.

I can only imagine we have to wait for bootcamp drivers for windows7 direct from apple.

May 8, 2009 12:27 PM in response to bmwt

I wouldn't hold my breath on Apple drivers or anything.

Seems a shame. There are other people with iMac - maybe not the same model as yours? with RC running fine.

I've seen RAM and hard drives that really should cause trouble even in OS X - but don't - because they were clearly marginal or had errors.

The latest Nvidia for RC doesn't seem as good as the last, and the Windows should and seems to be fine. And I would expect even if Apple had an update, it would still be delivered via Microsoft Update and even pre-install, where there are some patches download to improve the install.

Not afterward and not from Apple Software Update for Windows. And that wouldn't
help installing Windows 7 even if it was RTM. It would have to be included or slipstream.

Even VMware isn't really supporting RC yet.

May 9, 2009 4:57 AM in response to fffizzz

I got the BSOD when I installed Windows 7 RC (32 bit). I tried putting it into safe mode, but it wouldn't let the install complete.

I got around it by putting my iMac into target disk mode and deleting the nvidia driver from my macbook (you have to change a few files permissions to delete the files). Once I got Windows up and running with the SVGA driver I installed the 169.25 Forceware driver for Vista. When I rebooted I had full resolution, but no Aero.

I ran Performance Information and Tools to rate my system, but this caused the BSOD again. After it rebooted however, Aero started working. It seems stable now but I haven't tried rating it again or stressing the GPU at all.

All the Bootcamp 2.0 drivers work fine, but the nvidia driver on the leopard dvd crashes too.

Sep 5, 2009 12:41 PM in response to sccm_expert

I was suffering of the same issues. Installed the Windows 7 Ultimate RTM today and got bsod on every boot. After reading about the issues in here I decided to install Windows XP instead, so I threw the Windows XP SP3 DVD in the drive and used the boot camp assistant to initiate the install. I was away from the computer for a couple of minutes and when I got back, the computer had booted into the Windows 7 "first-run procedures". I was now able to register my copy, set up a user etc. and at last boot into Windows 7. I tried doing a "Windows Experience Index" test, to stress the graphics card and now I got a bsod 😟 Fortunately I was able to boot again, so I downloaded the latest GFX drivers off Nvidias website, installed them and now it seems to work. I had some other driver-related issues, however, and was not able to use my Leopard DVD for installing the boot camp drivers, so now I am going to try my Snow Leopard DVD instead - hope it won't mess up anything.

I have no idea how I managed to get it to boot up and I don't know if it will last and stay stable, but it seems you can use the latest Nvidia drivers with good results.

Windows 7, White 24" iMac, nvlddmkm.sys BSOD..

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