Yes, this exact same thing happened to mine fresh outta the box, I was playing league of legends and all of a sudden BOOOM artifacts creating 3D spikes to infinity and beyond. Install an old driver, 297. perhaps ?
Yes please install an old driver for the time being and tell me if it still occurs.
If you can't hear your fan then, the fan's probably busted or the power to the fan is screwed. Please check properly if you can hear the fan.
Another thing, please uninstall Nvida 3D Vision / or exclude that when re-installing the old driver.
RMA if needed, I'm pretty sure you're still in your warranty zone ?
Intel i7 2630qm
Memory 8 GB
Nvidia GeForce GTX 460m 1.5 GB
Windows 7 Premium
1 TB HDD @ 7200 rpm
Razer Mamba, Razer Abysus, Rog Gaming Mouse.