How do I know if the video card or monitor is bad?

It seems as though the blue in either the video card or the monitor is not working.|||It might be the video card, but i think it is most likely your monitor.



First, check the color settings in your monitor, and make sure some joker didn't turn down the "blue" setting.



Is your monitor an old CRT? if so, then the blue cathodes might be dying, and the rest will likely die soon too. It's in your best interest to replace your monitor.



If it is an LCD monitor, and the color settings are right, then it may be the video card.|||CRT Monitor hardly fail to operate except LCD monitor. LCD monitor is more like to fail than a old type CRT monitor cos of gases in the screen compartment.



Blue means your vga connector pin may be dented or missing or lose connection to your vga port card.



Press the menu of the monitor, if the OSD - on screen display works, then it your graphic card problem.|||Its most likely a problem with the monitor. Go into your Monitors menu and restore the factory default settings. If that does not fix the blue problem, go into the custom settings and move the Blue value all the way to the left, then all the way to the right. See if this changed anything. If not, try unplugging the VGA cable and trying to connect your monitor with a different VGA cable.|||Well, if your using a seperate graphics card, try plugging the monitor into the onboard. If all goes well with that, its your video card. If it still has the same problem, your monitor is busted.|||Also clean the cable running to the monitor. It is pretty normal for the prongs to get dirty blocking them form sending data. They can also get damaged rather easily if it is regularly unplugged, so I would check that too.



Dont pay until youve tried the free stuff, even if its unlikely.|||It is never the video card. When video cards start having issues, it's usually that there is no picture at all or the picture will go out after the video card is warm.



You might want to try jiggling the cable as sometimes that is all that is wrong.



It's more than likely a bad pin or bad gun in the monitor.|||try hooking each up in a different computer, 1 at a time and eliminate the problem|||unplug the monitor from the back of the computer... leave it plugged in to the wall.. turn the monitor on.... if you see test or any other words on the screen and the colors look good.... its NOT your monitor..