Do I have to disable my onboard VGA?

My desktop got a onboard vga. But i need to disable it because I have a much better PCI VGA card. What should I do? BIOS looks so complicated. what happens if I don't disable it? can I do it inside windows?

Answers:
1. you have to disable the onboard vga from the CMOS setup (bios) or you may not be able to boot the computer because of conflicts 2.if you cant boot you cant get to windows
I'm not sure you have to but you can disable the integrated VGA

Right Click on My Computer and select properties
Click on the Hardware Tab
Select Device Manager
Find your integrated VGA card and right click on it and select disable.
Then reboot your system and you should be set
Your motherboard will detect another video card plugged in, and it will automatically turn off the onboard VGA, so just plug in and boot up, then install the drivers. you will be just fine.
You can manage your video in both the bios and Windows, but if you don't plan on using two ports I would suggest that you select the new PCI card in the bios.
This will set it to display the boot progress which can be critical at times.
The computer will do that for you just install the new video card then install driver from the CD that came with it.
In BIOS menu, usually there is the option to select where to boot VGA from, PCI or AGP. Defaults is PCI, but when there is no graphics card on PCI, it will boot on AGP (which could be integrated or a discrete card).
First off, uninstall any graphics drivers you have right now for the onboard graphics. Turn off your computer, insert the new graphics card, then turn it back on. Now, you'll need to go into the system BIOS. It's really not complicated at all, just make sure you actually read before you change any info. It should be under chipset or something, then you should see something like onboard VGA or graphics or something. Make sure you disable this. Make sure you have your monitor hooked up to your new Graphics card. the resolution should be pretty low, so everything will probably be very big. Load up windows, and log into administrator if your computer requires you to do so, then install the new graphics drivers. Once this is done, restart your computer, change the resolution desired, and bingo, you now have your new graphics card set up. Remember, when opening up your computer, ground yourself by touching a metal area on the computer case, this will ensure you don't damage anything in your computer with static discharge. You could either do it this way (easy and cheap), or you can go to some computer store/ Geek Squad and get them to install this new card you have for $50 bucks. Your choice. Hope this helps you.
It really depends on what kind of card u have u CAN turn ur on-board card off from the control panel device mgr tab or from bios.but some card DO NOT require u to do that or automatically read from the right one...it depends on ur card mostly...i ahve had different cards and had to do it both way but i like the way of going from desktop properties then hit the display tab and choose from there just make ur new one default and that should take of you

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