Even after Nvidia downplayed their original report that GeForce 8400-8700 cards were failing in large numbers due to overheating, Dell has issued a BIOS update for all of its machines running the affected GPUs anyway. The update tweaks the fan settings to "regulate temperature fluctuations" to keep the maybe-faulty-maybe-not chips cooler. So who do we believe here?
Granted, it's not hard for Dell to roll out a BIOS update that bumps cooling fan RPMs, so it makes sense that they would cover their arse in this way. Although more fan means more noise and less battery life, so the update is not without its costs. Either way, Dell is taking the issue seriously, which makes it seem like the the problem is a little more serious than what Nvidia is saying.
The update is for the following systems: Inspiron 1420, Latitude D630, Latitude D630c, Vostro Notebook 1310, Vostro Notebook 1400, Vostro Notebook 1510, Vostro Notebook 1710, XPS M1330, and XPS M1530