Challenging Power Supply Issue: Need Troubleshooting Steps?

Question

Please read the following and provide troubleshooting steps.

Issue:

Monitor goes blank. Keyboard becomes inactive.


Description:

This happens following two actions: 1] When I power on my computer tower 2] When the computer is already powered and running normally

In the first case, only the fans seem to have started and the keyboard's Num Lock bulb doesn't glow at all. However, the monitor gets power and displays a 'Check cable Connection' message. There will be no display.

In the second case, the same issue occurs when I try to switch between different user accounts. The monitor loses display, not power. And they keyboard becomes inactive. The CPU seems to be running normally as the fans keep running and the light on the tower keeps glowing.

Note: This is not a problem of computer shutting down abruptly

Please check the additional details for system configuration. Refresh the page if the detials are not showing up.

..

System configuration:

This is an assembled Desktop PC with..
> Intel DG965 original motherboard
> Pentium D processor
> Samsung Plug & Play 19-inch monitor
> 160 GB SATA HDD
> 1 GB RAM
> Powered by APC Back UPS 650

Answer 1

This is not the problem with your monitor.
Problem is with your mother board.
I guess it can be caused by the malfunction of the BIOS chip in
the motherboard.
Better consult nearest mother board service center. or else your may have to replace the mother board.

Answer 2

It doesn't sound like the issue is power related. It may be the ports on your motherboard going bad or loose connections. Also if you have a KVM switch it may be issues with this. If you have a KVM switch, make sure you bypass that for testing purposes.

Answer 3

Your computer is rubboish and broked. Buy a new one.