Hi, this is a quick guide to overclocking the M11x graphics card. Its a simple process, and shouldn't harm the GPU as you are not increasing the voltage.
What you need:
Msi Afterburner: found here http://event.msi.com/vga/afterburner/download.htm
Msi Kombustor: It is included with the Afterburner download
The latest Nvidia Drivers: Current is 295.73
How it works: Open Msi Afterburner and you will see 5 sliders, 2 of them will be locked (cpu voltage and fan speed). So for our purposes we will only use the 3 unlocked ones (core, shader, and memory clocks). Your current clocks should be 672, 1344, and 900 in that order.
To begin overclocking you simply move the core clock slider (note: it should always be linked to the shader clock, and thus be 2x the shader clock). Strictly speaking you should move the sliders 10mhz at a time to find your stable speed (we will talk about testing stability later), but the GT540m has been extensively tested, so you can start at 750mhz and move up or down 10mhz at a time to find your stable speed. The memory clock should also be moved 10mhz at a time, but as I said before the GT540 has been tested by many people, so you should get about 1000mhz safely.
To test stability you run Msi Kombuster, which will open up and you will see many buttons and check boxes. Ignore everything but the box that says "xtreme burn in" check that box. Then hit the big button that says "GPU burn-in" What will happen is that a fur mark test will launch whew you see a moving furry MSI immage. This will tax your cpu at 100% and monitor the temps, make sure your temps Don't exceed 90c, and run it for over one hour. If nothing crashes, the clocks stay at what you set them, and you don't see any artifacts (i.e. weird marks/pixels in the furry image) then you have a stable overclock. If there are any of those problems, move the sliders another 10mhz in either direction. Note: you will probably not get core clocks over 850mhz without more voltage, most people claim that around 800mhz is where they are stable with the GT540m
What you need:
Msi Afterburner: found here http://event.msi.com/vga/afterburner/download.htm
Msi Kombustor: It is included with the Afterburner download
The latest Nvidia Drivers: Current is 295.73
How it works: Open Msi Afterburner and you will see 5 sliders, 2 of them will be locked (cpu voltage and fan speed). So for our purposes we will only use the 3 unlocked ones (core, shader, and memory clocks). Your current clocks should be 672, 1344, and 900 in that order.
To begin overclocking you simply move the core clock slider (note: it should always be linked to the shader clock, and thus be 2x the shader clock). Strictly speaking you should move the sliders 10mhz at a time to find your stable speed (we will talk about testing stability later), but the GT540m has been extensively tested, so you can start at 750mhz and move up or down 10mhz at a time to find your stable speed. The memory clock should also be moved 10mhz at a time, but as I said before the GT540 has been tested by many people, so you should get about 1000mhz safely.
To test stability you run Msi Kombuster, which will open up and you will see many buttons and check boxes. Ignore everything but the box that says "xtreme burn in" check that box. Then hit the big button that says "GPU burn-in" What will happen is that a fur mark test will launch whew you see a moving furry MSI immage. This will tax your cpu at 100% and monitor the temps, make sure your temps Don't exceed 90c, and run it for over one hour. If nothing crashes, the clocks stay at what you set them, and you don't see any artifacts (i.e. weird marks/pixels in the furry image) then you have a stable overclock. If there are any of those problems, move the sliders another 10mhz in either direction. Note: you will probably not get core clocks over 850mhz without more voltage, most people claim that around 800mhz is where they are stable with the GT540m
