Question about Compaq Presario S4220NX (Refurbished) (DK396AR) PC Desktop
My green power light on my monitor is blinking but I have no image on my srceen (no signal). I know my computer is running(fan etc. is on) and I can hear Windows running in the background.
Compaq Presario S422ONX
First try to plug you monitor into another computer if possible and make sure that it works, if it does not then follow the directions that I have placed below.
What you need to do is pull off the side of computer and unplug the monitor from the card and look for the graphics card and once you find it and pull it out and either blow on it or get a can of air and make sure it isn't dusty, and also where you pulled it from clean there. If the whole inside of the comp. is dusty blow it out as best as you can with air. Make sure the system is OFF and UNPLUGGED. Other wise it is very possible to fry your whole system also make sure you ground yourself first to by touching the side of the case first. Also be warned that if it is covered by warranty opening the side panel of the computer could void a warranty. Plug the card back in, monitor into the card, and power to the computer and try again. Chances are it is a bad card but this is to make sure.. If this does not work go buy a new card and try it. Make sure it is the right type for your computer. If the new one does not work chances are your motherboard slot for the card went which is uncommon. If you have issues please re-post.
Posted on Dec 28, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
you plug in the power cord is there any lights whatsoever on the laptop, where
the plug goes in or on the AC Adapter of the power cord?
When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the computer is trying to boot or may have booted, but the screen is not showing for some reason.
Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).
Maybe you have a Static Charge Buildup. Remove the Power Cord, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.
your memory is bad or the memory slot is bad.
the Power Cord, Open the Case and remove one of the memory chips. Set the
chip aside then try rebooting the computer. If it boots, then you know
the memory chip you set aside is bad so mark an x on it with an ink pen.
If it fails to boot then move the chip to the next memory slot and try
rebooting. If it fails take the chip out and set it aside, then put the
other chip in and try booting it in both slots. If it boots, just to
verify that the chip set aside is bad, mark an x on it and put it into the open
memory chip slot and try booting.
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