There is nothing quite as infuriating as troubleshooting personal computer issues and it can reach exponential heights when nobody else has successfully solved it. That’s the situation I’ve been in for the past month since getting a Nvidia Geforce 650 TI based video card. Part of the pain was making the mistake of testing the 320.xx beta drivers, which ended up being certified in 320.18 without correcting any of their bugs. Check out this forum for multiple threads on the issues involved.
Some of the bugs are show stoppers. By that, I mean they lock up the computer which truly qualifies as a stopper. The worst symptom is that of Windows Explorer locking up while allowing currently running programs to function. They can be used or shut down, but Ctrl-Alt-Del doesn’t work, launching programs fails, and you can’t shutdown. Other folks have had their video cards actually burned out by the drivers.
So I’ve spent the last week or so uninstalling and installing drivers (use safe mode, folks – you’ll be grateful you did) to find something remotely stable. 310.70 was fantastically unstable, 306.97 was slow in games, and 314.22 showed some of the same lockups. I’ve settled on the latter for now, since they crash the least.
Checking the latency on my PC with LatencyMon reveals large problems with Nvidia’s driver kernel, nvlddmkm.sys. I’ve disabled powering down the video when the PC is idle and that’s helped stability. So far I’ve kept the PC going for its longest stretch by enabling the screen saver to make sure the card doesn’t go dormant.
Digging for solutions exposed another large issue and that was what was causing Mass Effect 2 and 3 to fail to run. It turns out that starting with Windows 7 the power management in the operating systems from Microsoft park the cores in multicore CPUs. This saves power for laptops, but is pointless for desktops. A utility called parkcontrol made all the difference in the world in allowing the games to run.
The big surprise from using that was how much faster and responsive the PC has become at doing everything else. From Internet browsing to graphics editing, everything is much faster now. Why this is an issue with Nvidia and not with AMD Radeon video cards is a mystery to me.
If I had things to do over again I would buy an AMD Radeon 7790 based card. The Gigabyte 650 TI hardware is excellent and never spiked in heat like some with the 320 drivers, which is a testament to its cooling system. But I never had driver issues with Radeons like this.
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