If you're building a computer, you may run into this problem where your computer monitor goes blank after the boot process. Now this can be very disturbing and demoralizing.
 

But don't give up! You simply need to check a couple of things. Here is a list of tips for troubleshooting the PC. Learn to apply them if your computer monitor goes blank after the boot process. There are in general a few things to look out for in situations like these. Check if your system still give a beep when it is turned on. Check if the monitor cable and video card are still connected to your PC. Run through these things to check so that you'll have less of a hard time when your computer boots to a blank screen.

Tip 1: Does it Give A Bleep?

First and foremost, if the computer monitor goes blank after the boot process, you need to listen for bleeps. Did the PC give one bleep? If so, most probably everything is fine and you should proceed to check the next item under Tip 2 below. If the PC gives a long bleep or series of bleeps - then there is a problem. In this case, you may well have to open case or get someone technically competent to do it.
 

Tip 2: Check the Monitor Cable

A loose monitor cable is also one reason why a computer monitor goes blank after the boot process. Make sure that you check the monitor connection to the video card is firm and secure.
 

Tip 3: Check the Video Card

If you checked the above and the computer monitor still goes blank after the boot process, you should definitely open up the case and check the video card. Is it firmly plugged into the expansion slot? Also, if your video port is on the motherboard, check that the connection is secure.
 

Tip 4: Check Other Cards

Ok, another thing to check if the computer monitor goes blank after the boot process is the presence of other cards. Other cards in the PC tend to affect the ability of the PC to display images. Make sure they are firm and secure in their positions too. I've come across situations where other PCI cards are loose and they affected my video card somehow.
 

Tip 5: Check Power Supply Connections

The last thing to check if computer monitor goes blank after the boot process? That'll be the power supply. Make sure the power supply connections to both the monitor and the peripherals in the PC are secure and tightly connected.
 

Conclusion

Try the above tips the next time the computer monitor goes blank after the boot process. Of course, as a last resort, if the problem still persists after trying out the above, you need to either send the PC to the dealer or get someone more experience to help you out.

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