biosbootdell-precisionwindows 7
My machine is a Dell Precision Workstation 450; it runs great (OS = Windows 7). However, there's one little annoyance about it: whenever I turn on the computer, it makes a loud beep and then requires me to press F1 before it starts booting the OS. If I forget to press F1, it just sits there and waits, not even putting my two monitors into sleep mode.
This is somewhat disruptive for me, but I'm sure there's a way to turn this off. Is it possible to disable this required keystroke during bootup?
What does it do? It "intelligently" switches between the NVidia GPU and the Integrated GPU in a system. This is to save power. If you are surfing the web, reading your email, there is no need to be using the more powerful NVidia GPU. This would shorten the charge life of your battery, requiring you to recharge it sooner... if you were using it all the time for mundane tasks. Since the NVidia dedicated GPU also generates more heat, this causes your laptop to run hotter. Laptops in general have issues shedding heat in the best of circumstances, thus generating more heat when it isn't necessary is typically frowned upon... performance-wise.
Now... with Optimus running, when you play a game or use a program that requires more GPU, the dedicated NVidia GPU is turned on and you get all the joy and happiness associated with a powerful graphics processor when you need it.
Turning it off will typically disable the dedicated GPU altogether, saving battery power but making your game performance suck.
Remove the CMOS battery from your laptop for five minutes and reinsert it. The CMOS battery is the same size and shape as a medium to large size silver colored coin. This will reset all the BIOS settings back to their factory defaults and restore the screen back to working normally.
ASUS A55V laptop's CMOS battery
If that doesn't work unhook the laptop's graphics card and try hooking the video cable into your TV. Undo the disabling the XHCI Pre-Boot Mode. Power the computer off, hook the graphics card back up, and switch back and connect the video cable to it. Also plug the other end of the video cable back into the laptop's screen.
Best Answer
All you need to do is disable the warning in your BIOS menu. When you turn on your computer, there should be a prompt for F12 to access your BIOS menu or something similar. Do so and you'll be taken to the BIOS menu naturally. On your main menu, there should be a choice called, 'HALT ON'. Use the arrow keys to get down to it and press the Enter key to see the choices. Choose 'No Error' and then press the button that is mapped to Save and Exit (there's usually a legend at the bottom for what keys do what)
Try booting up your computer and see if the prompt comes up. If it still did, try following something in this tutorial: http://www.wallpaperama.com/forums/how-to-disable-press-f1-to-continue-when-booting-make-change-bios-boot-t482.html