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1) Check light of CPU, if it is blinking or orange -> monitor data cable is failed. 2) If light is constantly ON -> motherboard problem. 3) If light is OFF, -> power cable or socketis gone !!!!!!!!!!!!!!!11
The monitor is not powered by the computer. If there is not Signal to the monitor from the computer there will be no display, however the power to a monitor is supplied by a separate cord from the outlet to the monitor.
The orange light is a self-test indicator. If the light glows red, the monitor is defective. Once the light switches to green, it means the monitor is receiving a signal from the computer. The orange light signifies that the monitor is receiving power and utilizing it properly.
Try a monitor reset. Unplug the monitor and hold down the monitor's power button for 30-30 seconds. Plug the monitor back in and power it up. If that doesn't work then go into the monitor's menu and do a factory reset.
The power button.
To save power
if it says power button locked hold "<" button and power button till the message goes.(at least a min)
Yes, an 800va UPS might power a PC with that size power supply and a monitor. Of course, to be on the safe side, you should use a modern monitor and not a CRT monitor.
how much voltage does a monitor takes to operate
Check the power specs for your monitor at the Dell website. There are many. many Dell monitors.
If the PC powers on and performs no bios or mainboard functions (nothing comes up on the monitor screen, the monitor remains in power save mode) then the CPU may not be receiving enough power, or the CPU may have burned out. Check the power cables going to the mainboard, and or contact someone who can troubleshoot your PC. Power cables are good checked them, mainboard is good too, it you reboot it all comes back up.
225W