The people at Guru3d.com have discovered a potention problem with the leaked Nvidia 51.13 drivers. Apparently there is a glitch in the driver that manages power feed to the card's fan. Here's what Guru3d had to say.
If you have been snooping around in our forums you might have noticed that Detonator drivers 52.13 have leaked onto the web and they are for real. However, these drivers might NOT BE SAFE to use as far as we are concerned !
As part of our procedure before making a driver life (virus/trojan checking and testing the actual driver) we ran some tests on them with a 5900 Ultra. The minute a Direct3D scene is rendered the active fan will stop spinning. The game then exits with an error-code from NVIDIA 'Sentinel error - and something with power'. This bug might be very card specific, be warned ! And if you do decide to try them out watch that fan and make sure. Whatever you do, you do it at your own risk, don't go complain to NVIDIA or us if things go wrong ! You have been warned.
The way I read this is that this problem only occures with cards with fans. However you should roll back to the 45.23 drivers just to be safe. For all we know this problem could also be overloading the GPU, and a heatsink isn't going to help much if that happens. Beta drivers are dangerous to use and this proves it. Let the professionals at Nvidia work out the bugs first before even thinking about downloading.
