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When the computer is turned on the light does not come on around the power button, but the computer sounds like it is on. The monitor says no signal

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It sounds like either your connections to the motherboard are bad or your power supply is getting flakey. First I would check all the connections on the motherboard and make sure that they are all pushed in and completely connected. If that doesn't work you should test the power supply. You can either purchase a power supply tester (which is handy to have around) or have a local tech take a look at it.

Posted on Aug 26, 2010

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I have a dell studio 540 desktop, I need to restore to factory settings but my monitor will not stay open. It opens for a few seconds then immediately goes into power saver mode and turns off, how can


I see two things here, but need clarification;

1) Monitor goes to Power Saver Mode, then turns -> OFF?

Sure that monitor didn't go into Standby Mode?

2) Why are you performing a restore back to factory settings?
Pick up a virus?

Primer;
The monitor receives a signal. A video signal. The video signal comes from the computer.

If the monitor is NOT receiving a video signal, then the monitor will state No Signal.
This is for older monitors.

New monitors do not state No Signal anymore.
It's Power Saver Mode, or Sleep Mode.

If the monitor is truly OFF, the Power On button will Not be lit up.
Or the Power On LED light on the monitor.

Monitor power on LED is lit, or Power On button is lit?

Monitor is not receiving a video signal;

Use a monitor cable from a KNOWN to be working monitor, for a temporary test.
OR,
Use a Known to be working monitor, and it's monitor cable.

Need to find out if monitor cable is good.

Monitor cable checks out good?

Then problem is computer.

The two leading issues with desktop computer failure, is;

1) Computer is dirty inside
2) Power Supply inside computer is bad.

Please post back in a Comment.
Regards,
joecoolvette

Mar 27, 2013 | Computers & Internet

1 Answer

The monitor is plugged into the power, and connect...


Guest, You will need to "sub-in" a known-good monitor to prove your pc is working ok! If pc is ok, then plug-in bad lcd monitor and check ( test ) it with aid of a bright flashlight to see if you can see a very faint image of the WIN-desktop being displayed on the now "black" LCD panel. Every owner of "cold-cathode-fluorescent-lamp back-lit lcd monitors should know the "flashlight test" and understand what the results of this very basic test mean. Do some reading in my old (louie12fix) profile to learn how to do test. Hint: The very first thing I would investigate inside the unit would be the unit's "switch-mode-AC to DC-power-supply/ccfl electronic ballast circuit for the top two causes of power supply going into "partial or full" shutdown mode, trying to SAVE itself from a nonrecoverable catastrophic failure. e.g. sparks,smoke, fire!! 12fixlouie

May 20, 2010 | Computers & Internet

1 Answer

Wont start up


Check physical connections first, check monitor cable if securely plugged in and then check power light of monitor. If power light on monitor is amber or yellow it means that monitor is not getting a signal from cpu/ tower. Try to do a power drain on the computer, remove power cable at the back of the computer and then press and hold the power button for 10 secs, after that plug in power cable again and restart the computer.Check if there is any connection if not then try to use another monitor, a known good one. If you get a video from another monitor it means monitor is already defective.

May 15, 2010 | HP Pavilion a1610n PC Desktop

1 Answer

The monitor will not turn on. When power button


First--was it working?
Did it suddenly stop?
When you see the LG logo, then it goes away, does the power light turn from green to amber? Sounds like that doesn't happen.
So--if you are getting a signal, you should see something.
If there is no signal, then the power light should change from green to orange.
With no lights at all, I suspect a faulty monitor.

Feb 22, 2010 | Computers & Internet

1 Answer

Unhooked and moved my computer to another part of my room and the monitor now comes on with the power saver display and button is blue, then power saver display goes off and button turns yellos light and...


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.

Write back if that does not solve the problem.

-Jon

Sep 29, 2009 | Gateway FPD 1730 17 in. Flat Panel LCD...

1 Answer

Monitor not wrking


Sounds like you may have had a power surge.??
Disconnect power and signal input.
Turn the unit off for 20 minutes or so. Check the outlet against another device. ( Light )
Turn unit on without connection to PC video.
If you get a no signal, you good to go . Reconnect. If you continue to get a flashing light on power button,
Check warranty, get it back to Samsung for repair.
Hope this has helped

Sep 02, 2009 | Samsung SyncMaster 2233BW 22" LCD Monitor

2 Answers

No signal when power button turn on


Sounds like either the power supply unit's fan isnt functioning and the the uniy over heats and the computer then wouldnt boot up (to protect itself) or the processor is overheating. But rather seems like a power supply problem

Jul 06, 2009 | Acer AL1916W 19" LCD Monitor

1 Answer

Dell E171FP Monitor goes black after 2 secs


Hi, I don't think the problem is with your monitor. Your monitor sounds like it's doing exactly what it's supposed to do. The monitor is supposed to turn off if there's no cable attached, which means there's no signal input. When the screen goes black, does the power light stay on and turn orange? or does it go off as well? I would recommend that you lower your screen resolution to 1280x1024 or lower in the Display Properties window, then remove your primary monitor, and connect the monitor to your desktop computer. You should see it light up when connected. The monitor auto-senses when there's a computer attached to the cable and when there's a signal. If it doesn't see a signal, it goes black to save power.

Jun 17, 2009 | Dell E171FP 17" Flat Panel LCD Monitor

1 Answer

My gateway 420GR desktop will power on but on the monitor only display no input signal. The PC will also not turn off at the power switch.


Sounds like the power button on your monitor is not on, is the light on the monitor yellow and dim or bright when you start the computer? Make sure the monitor is on. If you hold the power switch in for about 10 seconds the power will turn off. But that is not the recommended way to shut your computer down. Use your start button and log off or close that way. Good Luck.

Oct 28, 2008 | Computers & Internet

1 Answer

Blinking power button


It could also be because there is a problem with the display controller in the computer. Try to hook up another monitor to this computer and see if it comes up. If it does not work with another monitor, the computer will need servicing. If the display does come up, the Samsung monitor will need service. Good Luck

Jun 20, 2007 | Samsung SyncMaster 170 T 17 in. Flat Panel...

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