Computer screen went blue when "screen-saver" should have come on, had to turn comp off, keyboard would not react. Power button did not work, so I unplugged comp. When turned back on it beeps constantly and I can do nothing, no recation. HELP!!! if you can....
Question- the beeping, is it short (1 second beeps) or long (2 or more seconds) and how many before it stops? or doesn't it? does it have any rhythm? The beeps correlate to some hardware problem, if you want to check the beeps yourself, just google "Bios beeps" and it will bring up a table of what the beeps mean. J
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When you say "screen goes black," does the computer power down, or is it still operating? Does the sleep light come on? Does it respond to the keyboard and mouse? (Example: press the power button momentarily, wait a few seconds for the "Do you really want to shut down" message to appear, even though you can't see it, then hit the return key to answer "OK," and see if it shuts down.) Does the screen go black or come out of black if you tap the computer?
While your computer is working, go to System Preferences / Desktop & Screen Saver, the Screen Saver tab, click Hot Corners, and set a corner of your screen to Put Display to Sleep. Then next time your screen goes black, mouse your way into that corner, pause a few seconds, then mouse back out and see if your screen returns.
1 Disconnect the battery and the charger 2 Let it sit for 1-2 minutes. 3 Press and hold down the power button for 30 seconds. 4 Connect the charger (don't connect the battery yet) and try to start by pressing the power button.
Basically you need to tell the computer to "wake up." Different systems come out of power-save mode different ways.
First, try pressing the key to the left of the [CTRL] button on the right side of the keyboard. It looks like a list with an arrow pointing at the second line.
Next, if you have a keyboard with a little button that has a quarter-moon logo design on it, press it.
Also, look at the power light indicator on the CPU. It should change color when it goes into power-save. If it does, try pressing the power button once for it to wake up. The same is true if there is a power button on the keyboard.
If none of these work, you should look at your preferences and make adjustments. The power-save mode adjustments are generally found in the control panel under Performance and Maintenance in the Power Options section.
Sounds as if your monitor is not receiving a signal from your video card. In all likelihood, the video card came unseated during the move. Open the case and re-seat the video card, that should do the trick.
This is most likely not a problem with the monitor but rather a problem with the computer. do you hear the fans running in the computer? If so then the Power Supply seems to be working which would leave the most likely things are CPU or motherboard and the only way to determine which one it is would be to try the CPU on a different motherboard or try a different CPU in that motherboard.
If the fans do not run then the problem is most likely the Power Supply. The biggest problem here is that although what I have outlined is the most likely problems there are other things that could cause this and whether the fans are running or not it could still be the CPU motherboard or Power Supply. If you can I would check the voltages from the Power Supply or at least get a power supply tester to see what that shows and work from there.