The newest WHQL Drivers from NVidia seem to have an interesting “new feature”: It disables Overclocking.
Yesterday NVIDIA updated its GeForce/ION driver to 196.21 WHQL version which includes SLI and multi-GPU support for many new gaming titles as well as some bug fixes, but several users have found that after upgrade they’re unable to overclock any more.
Expreview did a small test to check out if it’s true. We run the test with Galaxy GeForce GT240 under Windows 7 64-bit operating system, and used the following four popular overclocking utilities to see what would happen.
They test 4 popular overclocking packages, and 3 of them fail in various interesting ways. It’s currently unknown if this intentional or accidental, but definately something to pay attention to.
via NVIDIA 196.21 WHQL Driver Disables Users to Overclock – Expreview.com.