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I have recently purchased Asus K43sj. It has NVIDIA GeForce GT 520M 1GB DDR3.Problem is that it does not have optimus. Battery life is 4+ hours while surfing. But if I could enable Optimus I could squeeze more battery life. The graphics card itself has Optimus because it is mentioned on Nvidia site and other notebooks having gt520m also have it. Even Asus k53sc(15" model of my laptop) has Optimus.
So Asus has disabled Optimus on this model for some reason. I have searched BIOS settings but there is no option to enable Optimus. Please tell me how to enable Optimus ?
1You need an integrated gpu for optimus (which you probably have) and specialized drivers for that model. If asus doesn't have them and you can't write them yourself you are screwed. The standard Nvidia drivers do not work with optimus without some hacking... – Supercereal – 2011-11-16T20:59:48.717
@Kyle The sandybridge processor(i3 2nd gen) has integratd graphics. But I'm not able to install Intel Hd drivers. Also the nvidia drivers I install has Optimus but it is not being installed with the driver. Has Asus disabled something on hardware level ? – Serious – 2011-11-16T21:08:27.420
1Maybe, It's possible they disabled the integrated card... However when I download and install nvidia drivers for my 335gt with optimus it tells me the driver supports optimus, but in reality it doesn't. The only way to get it to work is with the dell driver or by hacking the Nvidia driver. So don't trust what the nvidia driver is telling you. Also I would work on getting the Intel driver installed first, without this there is no way optimus is going to work. – Supercereal – 2011-11-16T21:43:32.623
The notebook is not accepting the Intel drivers. The installation stops saying that compatible hardware not found. – Serious – 2011-11-17T07:29:39.683