BSOD with new Windows Install and Hardware

Hi.

Thanks in advance for any help you can provide. I've been slowly building up a new system over the last few months, and the final piece was adding a second PNY Nvidia GTS450 for a dual SLI rig. Since installing the new hardware and drivers, I've had some issues with an occasional sudden reboot of the PC... which I later realized is Win 7's new way of dropping a BSOD.

In the process of all of this, I've been installing and uninstalling software like a madman. So this week I decided to do a full reinstall of Windows. No luck. I've tried to eliminate any hardware overheating issues (my cards stay below 60C).

The reboot/crashes have come when I've been using some pretty low-demand picture editing or when I've been making adjustments in the Nvidia control panel.

I am hoping someone here can at least point me in the right direction... if there is an obvious software issue at play, or if I ended up with a defective piece of hardware.

Many thanks!

Windows 7 Professional 64bit.
Installed this week (2/15/2011)
Asus M4N98TD EVO Motherboard
AMD Phenom II X4 965 CPU w/ 8GB RAM (DDR3 - 10666)
2 x PNY Nvidia GeForce GTS 450 graphic adapters, driver ver. 266.58
750W OCZ Power Supply
NO system overclocking.

MiniDump Attached

Dump blames your nVidia Display Drivers, please do the followings...
- Boot into safe mode with networking
- Uninstall the nVidia Drivers (using Device Manager)
- Use driver sweeper to remove leftover nVidia display driver files Guru3D - Driver Sweeper
- Install the latest drivers NVIDIA DRIVERS 266.58 WHQL
- Reboot into normal mode

Code:

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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck 116, {fffffa80076e54e0, fffff88010047354, 0, 2}

Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+156354 )

Followup: MachineOwner
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I've done it. I'll see what happens over the next few days. Thank you for such a quick response!

Just an update... I believe it was indeed the Nvidia driver, in combination with Nvidia System Tools 6.06. Either I had somehow messed up the original installation or they don't play well with my new SLI configuration. I've reinstalled the main video drivers and will opt for another solution to adjust my GPU fan speed.

I am pretty confident the fix worked-- the Nvidia Control Panel is behaving normally and the system in general is humming along nicely. Many, many thanks for your quick response and sound advice!

Glad I could help.

Let us know if you need anything else.