Question about Dell Dimension XPS 400 PC Desktop
That is not enough info, please provide more info so people can understand the issue better. For example, describe what you do and see step by step. When you turn on the machine, after a few seconds it powers on, it should run Power-On-Self-Test (POST) which will end with a beep telling you everything was OK. If you do not hear any beep, the problem is likely to be inside the case, bad video card, motherboard, CPU, etc. Typically bad RAM or Video card will cause a series of quick or long beeps (different for each motherboard) to indicate where the problem is. Bad CPU generally do not generate a beep code and most motherboards also do not give out a beep for motherboard issues, naturally.
If you hear that beep but see absolutely nothing on the screen from the moment you turn it on, then check to see if the status indicator light (assuming it has one) changes color or not:
A) If the light on the monitor changes from red/amber to blue/green but you see nothing on the screen then either the video resolution and/or refresh rate is unsupported, video drivers are faulty or monitor itself is bad.
B) If the light goes back to red/amber or stays that way from get-go, then there is no connection, monitor cable is loose at either end or bad/supported.
C) One other possibility would be the input selection on the monitor which is set to "Auto" by default but if it was manually changed to DVI for example and you are now using a HDMI cable, monitor would not automatically change this setting thus not receiving the signal from the video card. You can check this using the menu buttons on the monitor itself.
This is a generic troubleshooting ideas I just shared, more details you can provide, the better people will be able to assist you.
Posted on Nov 21, 2013
Check the video cable.if not restar the computer and keep pressing F1 (for windows7) then select VGA MODE ...
after it will come, you've to check the resolution of your screen.put it in 1024X768
Posted on Nov 21, 2013
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Posted on Jan 02, 2017
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