Question about Gateway 420GR PC Desktop

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Monitor does not come on when powered on, it says no input signal

I have a gateway 420gr when I push the power button to turn it on the computer's blue power light comes on the fans come on loud like they are in hypermode, they should quiet down after a few seconds but they dont. they just stay in the loud hypermode and the monitor does not detect a signal at all, it just stays blank the whole time. when this first happened i had a you tube video going and the monitor all of a sudden shut off and said no input signal. Any ideas what the problem may be?

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  • d_j_l_04 Jan 08, 2009

    I am just using the built-in integrated video port

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Check your video card. It sounds like it has went bad. Hope this helps.

Posted on Jan 08, 2009

  • Roy Lonsinger
    Roy Lonsinger Jan 08, 2009

    Then the intergrated video on the motherboard may have went bad. Try installing a video card that is compatible to your motherboard in the open pci-e if a newer computer or the agp slot if older. If the installed card works then you know for sure it is the built in graphics that went bad. Hope this helps.

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The screen reads no signal


eMachines flat-screen monitors offer high quality at low cost.
eMachines flat-screen monitors are compatible with most brands of PCs.
Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings.
These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet.
Press the computer's power button.
Check the LEDs on the front of the computer case to confirm that the computer receives power.
Plug the eMachines monitor's power cable into a working AC outlet.
Press the monitor's power button.
Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power.
Orange or blinking LEDs indicate low power or no signal.
Green LEDs denote a working connection..

Perform a monitor self-test.
Switch off the monitor.
Unplug the video cable from the monitor.
Press the eMachines monitor's power button.
An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly.

Plug the eMachines monitor's video cable into the video port on the computer.
Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot).

Press the eMachines monitor's input button to change the monitor's setting to match the computer port used.
Set your monitor to DVI if connected to your computer's DVI port.
Set your monitor to VGA if connected to your computer's VGA port.

Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved.

Jul 15, 2013 | Acer eMachines Black EL1850G-42w Desktop...

1 Answer

No Video


If its a flat screen monitor ?

eMachines flat-screen monitors offer high quality at low cost. eMachines flat-screen monitors are compatible with most brands of PCs. Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings. These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet. Press the computer's power button.

Check the LEDs on the front of the computer case to confirm that the computer receives power. Plug the eMachines monitor's power cable into a working AC outlet. Press the monitor's power button. Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power. Orange or blinking LEDs indicate low power or no signal. Green LEDs denote a working connection.. Perform a monitor self-test. Switch off the monitor. Unplug the video cable from the monitor. Press the eMachines monitor's power button. An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly. Plug the eMachines monitor's video cable into the video port on the computer. Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot). Press the eMachines monitor's input button to change the monitor's setting to match the computer port used. Set your monitor to DVI if connected to your computer's DVI port. Set your monitor to VGA if connected to your computer's VGA port. Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved. Hope this helps.

Jan 03, 2013 | PC Desktops

1 Answer

Need help from someone who has a Gateway GM5072 Desktop


Monitor, and monitor cable has been checked out, on another KNOWN to be working computer, and check good, check the Power Supply.

1) Yes I know logic dictates graphics should come next, after checking the monitor, and monitor cable.

2) Yes I know LED lights are lit, and fans are spinning.

Hear me out;

A) If ALL of the LED lights were on at once, they would use less than 1 WATT of power.

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

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

Gateway GM5072 Desktop PC?

http://support.gateway.com/s/PC/R/1008848/1008848nv.shtml

Specifications >
Processor: AMD Athlon 64 X2 4200+

http://en.wikipedia.org/wiki/List_of_amd_athlon_64_microprocessors#.22Manchester.22_.28E4.2C_90_nm.29_2

Look under TDP in the chart. (Thermal Design Point)
Can use Up To 89 Watts.

Meaning?
Your Power Supply could have a weak voltage power rail.
Not enough power to turn the Processor on.

(There are 3 main voltage power rails;
A) 3.3 Volt power rail
B) 5 Volt power rail
C) 12 Volt power rail
Your Power Supply is a converter. Converts 100 to 240 Volts AC to the low DC voltages presented above.
{In comparison two D cell flashlight batteries store 3 Volts DC )

No Processor operating, no computer operating. No computer operating, there isn't going to be a video signal produced by the computer.
This = No Signal on monitor, or monitor goes into sleep mode.

Primer:
You press the Power On button. The plastic assembly of the Power On button, presses against the Power On switch contained inside it.

http://www.directron.com/atxswitch.html

The Power On switch is a Momentary Contact Switch.
The brief closing of the Power On switch closes a circuit.
The Soft Power On circuit.
(Abbreviated as PS_ON)

When the Power Supply is plugged into power, there is a constant 5 volts present, in the Power Supply.
The 5 Volt Standby Power.

Closing the Power On switch briefly redirects the 5 volt standby power, to 'excite' the Power Supply, and turn the Power Supply on.
(Sounds like a steamy novel, huh?)

The first chipset (I.C.) to receive power is the BIOS chipset.

The Basic Input/Output System program is initialized.
BIOS looks to see what devices are installed, does a Ram Memory count, TURNS the Processor on, and hands the computer over to the Operating System.
(Windows XP and Windows 7 are two examples of an O/S.

The TWO main problems for desktop computer failure, is the computer is dirty inside, and Power Supply failure.

Do you have a multimeter, or access to one?
If not, do you have access to a KNOWN to be good, Compatible power supply, that you could briefly use for a test unit?

[An economical multimeter can be purchased for around $5 to $12. Available in a multitude of stores. An auto parts store is but one example. A lot of chain stores carry them. ]

Let's check out the power first. Post back in a Comment.

Regards,
joecoolvette

Aug 15, 2012 | Gateway GM5072 Desktop PC

1 Answer

Power Button lights up when pushed, computer comes on, but doesn't stay on. What can cause this?


one cause of this is that there is a problem with the motherboard or the video card.

try to turn off the desktop
unplug the cables
press and hold the power button for 5 seconds
replug the cables
turn on the desktop

if symptom persists, call gateway for possible repair

Jun 15, 2010 | Gateway 420GR PC Desktop

2 Answers

Gateway 420gr bios config for a pci express card


Try changing another setting in the BIOS when you change to autodetect. If that setting changes also, consider replacing the CMOS battery.
Also, check your PSU rating against the GPU's requirements. The card may not be drawing enough power to start and the MB defaults to the video that is running. You may need to replace the PSU with a higher wattage (and better quality), especially if it's the original power supply unit that came with the PC. What you will need will depend on the card and everything in the case. Google PSU calculator to see what you need.

Jun 04, 2010 | Gateway 420GR PC Desktop

2 Answers

When I turn boot up my gt5220 the monitor briefly flashes and then goes into power saving mode- desktop stays on, fans running and all, until turned off by holding power button down or unplugging it.... my...


first try to connect another power source if it does work that is good then try the other options 1- rams 2- vga card 3- cpu 4- of course there is always the motherboard option....
i had the same problem several times mostly it is the power supply ( the power source ) sometimes gives a weak voltage or amps....

Dec 02, 2009 | Gateway GT5220 PC Desktop

2 Answers

What does this mean?


It means that the monitor is not receiving a signal from the video card of the computer.

Possible failures are as follows:

1. The monitor input cable is no longer connecteds to the video casd.
2. The computer is not powering on
3. The video card has failed
4. The input Select option of the LCD is set wrong

Jan 27, 2009 | Gateway 300 C PC Desktop

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 | PC Desktops

2 Answers

Computer won't turn on.


have u tried to unplug the power cord and open up the case aand unplug the power supply from the motherboard and then pressing the power button then plug the powersupply back into the motherboard and pluging in the computer and see what happens please keep me posted so i can help you more if needed ok best regards mike

Aug 19, 2008 | Gateway GT5220 PC Desktop

1 Answer

Monitor signal is off


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


Aug 06, 2008 | Gateway GT5408 PC Desktop

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