Question about Gateway GT5408 PC Desktop

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Monitor signal is off

My computer GT 50408. the monitor and the computer turn on perfectly but not exactly. the monitor doesn't give signal, the led in the computer won't turn on. i don't know whats wrong.

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No power from the computer, replace the power supply in the computer.


Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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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

Dont show video but it turn on perfectly


Usually indicates a bad Power Supply.

LED lights light, fans spin, but NO Signal on monitor.

No Video Signal, because the computer isn't sending one out.
Because the computer isn't working.

Know this;

1) If ALL the LED's were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical processor can use from 51 to 125 Watts of power.
Just depends on what Processor it is.

A Power Supply with a weak voltage power rail, will not have enough power to turn the Processor on.

However not to jump the diagnostic flow chart; check the monitor cable FIRST.
Use on another known to be working computer. If it checks out OK, the problem is the computer, and I think -> Power Supply.

Test the 3 main voltages on the Power Supply, with a multimeter set to DC Voltage; OR use a KNOWN to be good, Compatible power supply, for a test unit.

For additional questions please post in a Comment.
Regards,
joecoolvette

Dec 29, 2012 | Computers & Internet

1 Answer

My Insignia Monitor doesn't work with my laptop, I've tried everything, from pc settings to cables, etc, i only receive a NO SIGNAL ad


Usually you have to toggle the display output on the laptop. The FN key + one of the F# keys with a monitor icon on it. Toggle it until it outputs to the monitor. Your getting "no signal" because no signal is being sent to the monitor or you have the monitor on the wrong input if it has multiple inputs.

Dec 24, 2012 | Insignia Computers & Internet

3 Answers

I have the VE278Q which is connected by display port, every time i turn off my computer and then turn it back on the monitor can't be found, I have to unplug the display port cable, unplug the monitor,...


when you say monitor can't be found did you mean the monitor has no reactions when you turn on your pc?

here are some test you may need to do to know which part is faulty
1. Turn on your computer, did it display the monitor's logo on screen? When it does monitor is good, when only blank screen it could be the vga cable or the video card.
2. See if the led indication lit. When it lit to steady green, it's good signal is coming in from the video card. It should be followed by screen display. If no display it could be the backlight inverter lamp busted or faulty inverter board. When lit green then turns red, no signal coming from the video card. Check vga cable if fix properly to both monitor and video card. Or may need to reseat properly connection of video card from the motherboard. If no led indication lamp, then monitor is dead. Check ac power cord for continuity using multitester. Check power supply section in the monitor, replaced bulged or blown capacitor with exact value, this components were the first to get affected when lcd monitor failed o turn on.
3. When computer was turned on got display and then monitor turns black, go check the vga cable, Fix the connection properly or may need to replace it with new one.
4. When no signal appears or display blank screen after logo, then check video card. First remedy is to disconnect it the reseat properly to the motherboard. If this have no effect change your video card.

go follow these steps and let me know which is closely to your problem so I can give you a good advise.

Jan 30, 2011 | ASUS LCD Monitor

1 Answer

Blinking with no signal video displayed,also blinking picture after started windows


"no signal" means exactly that. You monitor is not receiving signal from your PC. Recheck the video cable on both the monitor and the PC, make sure they plugged in properly.. Also try another monitor if you have it, and if it works with that monitor than more likely you have a frequency sync problem. In this case, using another monitor that works, and try resetting the video to basic 60Hz. In Windows, Start->Control_Panel->Display. Change the display resolution to the lowest, apply the setting, then change the monitor back to the questionable one. If it still doesn't work, then your video processor on your monitor is bad; RMA it if it's still warrantied.

Blinking picture problem, try suggestion above.

May 30, 2010 | ViewSonic VX1935wm LCD Monitor

3 Answers

My monitor has blanking led blue also when not is connected a graphic card and the monitor does not turn off


if i want turn off the monitor it does not turn off. Connected or not connected is the same while when it was good if there wasn't the signal output the led was orange. Now if there is or there isn't the signal output the blue led blinks

May 10, 2010 | LG Flatron L1715S 17" LCD Monitor

1 Answer

Viewsoniv VA 902 LCD 19" monitor


If the signal cable is detachable from the monitor, you could try with another cable... Regarding the power, I' not an expert, but if you're familiar with electronics basics, like risks of high voltage, soldering, etc, and you'd like to experiment with the unit, then I can give you some hints.

Mar 19, 2009 | ViewSonic VX900 19" LCD Monitor

8 Answers

Repair


if the monitor green led is blinking continuosly the follow the steps remove the cable of the monitor which is connected to the CPU and watch the monitor it should show a message ( no input signal or cable disconnected, that means your monitor is OK the problem is with your CPU . try this and let me know

Oct 10, 2007 | Computers & Internet

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