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I bought a Toshiba Satellite L650 earlier this week, and have begun running into problems with it. The fan runs perfectly when I first turn on the computer, and once I start doing something heat-inducing, the fan speeds up. However, whenever I resume from Hibernate, the fan runs extremely quickly until I reboot.

I've updated by BIOS, and can't really think of anything else.

Does anybody here know of a possible cause for this, and maybe a solution?

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Asus has really good Notebooks, they always come in at the top of independent and consumer ratings, they cost a bit more, but are worth every penny. Return that Toshiba before you regret it. – Moab Dec 4 '10 at 15:41
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Toshiba laptops get many complaints for overheating.

See the last entry in this thread : Toshiba Satellite P15 S420 Overheating.
It contains very detailed instructions how to clean the air intakes of a Toshiba Satellite.

If it is not hot, use SpeedFan :

SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. SpeedFan can even access S.M.A.R.T. info and show hard disk temperatures. SpeedFan supports SCSI disks too. SpeedFan can even change the FSB on some hardware (but this should be considered a bonus feature). SpeedFan can access digital temperature sensors and can change fan speeds accordingly, thus reducing noise. SpeedFan can find almost any hardware monitor chip connected to the 2-wire SMBus (System Management Bus (trademark belonging to SMIF, Inc.), a subset of the I2C protocol) and works fine with Windows 9x, ME, NT, 2000, 2003, XP, Vista and Windows 7. It works with Windows 64 bit too.

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It's not overheating. The fans just running, even though it's perfectly cool. – Serplat Dec 4 '10 at 20:18
You might have a go at using SpeedFan and seeing what the sensors are showing. It might perhaps be able to make the fans behave themselves. – harrymc Dec 4 '10 at 21:10
I had tried Speedfan. Unfortunately, Toshiba doesn't allow access to its fans except through the BIOS. – Serplat Dec 5 '10 at 0:18
Then you have no other choice except activating the warranty and demanding repairs/replacement, or better (if possible) return to vendor for refund. Next time, don't buy Toshiba. – harrymc Dec 5 '10 at 10:11
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