Can a PC run without graphics card?
Every desktop and laptop computer needs a GPU (Graphics Processing Unit) of some sort.
Without a GPU, there would be no way to output an image to your display..
Does a PC need RAM to post?
No RAM, your PC will not start POST.
Can PC work without CMOS battery?
The CMOS battery is not there to provide power to the computer when it is in operation, it is there to maintain a small amount of power to the CMOS when the computer is powered off and unplugged. … Without the CMOS battery, you would need to reset the clock every time you turned on the computer.
What happens if no RAM in computer?
Actually Ram takes required files from secondary memory or other sources & then pass out it to CPU for further processing. so, when there is no RAM not any action will be going to be perform. CPU only directed communicated with Primary memory for retrieval of data.