Alienware M14X R2 Horrible FPS drops

Hi guys! My first post here! Okay, so I recently bought an Alienware M14x R2 running:

Windows 8
i7 -630Qm @2.40 GHz
8 GB Ram
1 TB hdd + 32gb mSata for caching (already enabled)
and 2GB Nvidia Geforce GT 650M DDR5

Okay, so I'm pretty happy so far with its performance, and playing games and stuffs. Lately, I installed Battlefield 3, surprisingly, I always seem to get horrible fps drops. I tried changing the settings but it doesnt seem to work. The fps starts with 60 goes down to 40-30 and suddenly 3-6 fps every 2-3 minutes or so! NBA2K13 works very well with a constant 60fps everytime. Any ideas what should I do? Update drivers? I'm currently on 314.07, few days ago, I updated it to 314.22 and had serious problems, LMAO, after the login screen, after the metro start menu shows up, it's impossible to proceed to desktop, It blinks and restarts. I'm not a techy guy, but I somehow managed to fix it by going to removing the drivers while in safe mode and installed a new one, it worked perfectly.

Also read somewhere that it maybe due to overheating? So the gpu underclocks itself to prevent itself from getting fried?
I Also read somewere that GT 650M DDR5 got some amazing OCing capabilities. Interested, I read more threads and found out that its still "locked" so limits the OCing only up to (135GHz). "Unlocking" it while let you have up to (1+GHz?) and access to several hidden features as well. Unfortunately, I have A09 bios and found no mods. I found unlocked A10s& A11s instead. Never tried flashing my bios and I'm obviously afraid to make mistakes so I will probbaly look into that after I get some assistance maybe?

Anyways, I'm using MSI afterburner to OC it to (been playing around 100MHz-135MHz lately) and Memory Clock to 500MHz.
I dont see any improvements at all but problems instead. (The FPS drops while playing BF3 and "Sometimes" on Dragon Nest)
It's not probably an overheating issue, I always check the Temp using the Kombuster that came with the afterburner. 60-68'C all the time, and I've never seen it reach to 70'C.

Anyways, Thanks for reading, and hope you guys can give me some tips and help. Thanks )

 

The 650M throttles at 65C

 

Thanks! I apprreciate it. So the GPU is throttling at 65c? I'm not a techy guy, but what do you think is behind the throttling? And how should I stop it?
Thanks

 

Its throttling to protect it from damage, its hard coded in, theres no way around it. Try leaving it at stock clocks or prop up the back by the fan so it gets more cool air.

 

As for the driver

It's always better to do a clean installation when updating or rolling back drivers.

1. Open Programs and Features --> Uninstall all Nvidia related software (you may need to restart a couple of times to properly uninstall everything.

2. Open the Device Manager --> Under display adapter, right-click and uninstall your video adapters (check the box to "delete device driver software"). Again, you may need to restart a few times until you see "Standard VGA adapter" instead of your card's name.

3. You may want to clean up the registry too, it can be done manually or with a tool like driver sweeper or driver fusion.

4. Download and install the latest video drivers for your laptop.

5. Set-up your games in the nvidia control panel to have them run with the right GPU.