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Wont boot/start I replaced power supply from 300 to 450 watt. I replaced memory. I have to press the power button several times before fans & lights come on. Nothing on monitor & no sounds. Need help!!

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Turn off power, unplug, hold power button for 30 seconds, take out memory, or if you have more than one stick only take all but 1, plug the power back in and start the computer. If a screen pops up that bios has changed press F2 to continue once computer is completly loaded click start, shut sown, unplug power cord again, hold power button 30 seconds, insert other memory and restart

Posted on May 13, 2009

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Gateway gt4016 desktop, s/n gcm64 110 54982 unit will not boot up, pressing power button, fans starts, yellow light comes on, then shuts down. cleared cmos, pressed power button unit will boot up but...


the cpu could be over heating make sure its secure if you like get some thermal paste from your local pc world put a little on the top of the cpu under the cpu fan and replace fan securely might work be carefull....bonnell

Sep 17, 2011 | Gateway GT4016 Desktop PC

2 Answers

Does not boot up, fans start, internet plugs light, clicks on and off.....seems this is a common problem for these machines, what is the fix?


Instructions
  1. When you press the Power button to start the boot process, the LED lights glow while the computer verifies that there is sufficient electrical power to activate the hardware.

    Effect & Solution: When you press the power button, the LED lights on the computer do not glow or the LEDs blink briefly and then stop. There is no sound of the fan or hard drive spinning, and the screen remains blank. The computer will not start if there is insufficient battery or AC adapter power.
  2. The BIOS queries various hardware components used for the startup boot process.

    Effect & Solution: When you press the power button, the LEDs glow but there is no fan or hard drive sound. The LEDs may glow briefly and then go out.

    Or

    The LED lights blink, stop, and then blink a second or third time, but there is no sound from the computer and the screen remains blank. The sequence of the blinking lights indicates a specific error code.

    Or

    A series of beeping tones is heard. The sequence of beeping tones indicate a specific error code.

    If a hardware component has recently been replaced, or if the PC has been jarred or shaken, there may be a loose connection to the memory chips or hard drive which prevents the computer from starting.
  3. The BIOS loads the basic input (keyboard) and output (advanced LEDs / display screen / boot drives) devices into memory.

    Effect & Solution: When you press the power button, the LEDs glow, the fan or hard drive sounds, are heard, but then the boot process stops and a black screen - with an error message - displays.

    The boot check has detected a communication error or conflict with a hardware component that must be corrected.
  4. The BIOS loads the Windows operating system and starts the services that allow low-level control of all of the background operations.

    Effect & Solution: When you press the power button, the LEDs glow, the fan or hard drive sounds, are heard, the HP or Compaq Logo displays on a black screen, but then the boot process stops and a blue screen - with an error message - displays.

    The boot check has detected a hardware driver error or a software conflict that must be corrected.
  5. Control is transferred to the Windows loader to initiate the display of the advanced settings in the Windows environment.

    The Windows logo displays during this step.

    Effect & Solution: When you press the power button, the computer performs all the steps in the boot process, but after the Windows Logo displays, the moving Windows progress bar or the rotating cursor stops moving and the boot process stops.

    An error message may display on a screen with the Windows logo. In some instances, there is no specific error message.

    Or

    A black screen appears and the computer attempts to restart.

    The Windows self-check has detected a software conflict that must be corrected.

Jan 09, 2011 | Gateway GT4016 Desktop PC

2 Answers

When the computer on/off button is pressed , the CPU fan and tower exhaust fans start running, the blue light around the power button does not light and the boot up process goes no further. Fans continue...


A) When you hold a Power On button, (Switch actually), in for a count of 10 seconds, it turns the computer off.

(There is a Power On switch, located behind the plastic Power On button. Usually, the Power On switch snaps into the housing of the plastic Power On button.

Example of a typical ATX Power On switch,

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

The Power On switch turns the Power Supply on.

Old computers had a metal rod, that when the Power On button was depressed, the button pushed against the metal rod, which in turn pressed against a power switch located inside the Power Supply.

The design after that, was a power switch located in the Front Panel. (Plastic front of the computer) A large cable, (Wire) ran from the switch to the Power Supply.

Now there is the Soft Power On feature. (PS_ON)

The Power On switch is a small Momentary Contact Switch. Pressing it closes a circuit. The Soft Power On circuit.

When a power supply is plugged into power, there is a constant 5 Volts (DC) present.
This is the 5 Volt Standby.

Closing the Soft Power On circuit, redirects the 5 Volt Standby power to a circuit within the Power Supply.
This in turn 'excites' the Power Supply, and turns the Power Supply on.

Sorry to be windy, but I wanted you to know how the Soft Power On feature works )

eMachines are a budget computer. As such they save the consumer money.
However in order to do this, the manufacturer will install low quality parts, in some areas of the computer.

One such part is the Power Supply.

1) ALL the LED lights combined use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts

3) A typical Processor can use 51 to 125 Watts.
Depends on what Processor it is.
(Had you stated the Model Number I could have told you)

Enough power to spin fans, but not enough to spin fans, AND turn the Processor on.

Do you have access to another computer that is unused, but has a Known to be good, Compatible power supply?
It could be used for a test unit.

Tell me the Series, and Model Number of your eMachines, and I'll tell you what Wattage it should have, and what power cables, for the Power Supply.

(Some examples of Series, and Model Numbers, T1090, E4264, W2925, and so on. The T, E, and W are a few examples of the Series letter.
The numbers following the Series letter, is the Model Number)

If you wish I can direct you in removing the Power Supply, and installing the test unit. (And/Or a new Power Supply)

Sep 12, 2010 | E-Machines eMachines Desktop PC

2 Answers

When I turn it on, only the fans run. I cannot hear the hard drive run and the hard drive light on the bezel is solid yellow


look on bios to see if detects the hard drive ...if does not boot to windows...the hard disk has no reason to go on ....and the issues could be many ....check the Ram memory if do not appear anything on screen at all ...and just runs the coolers and clicks without boot at all...in this case its the Ram memory ...so check it ...get it out ..put it back ...and remove the bios battery to force it see them again .....if it is booting until the operating system should appear ...and after that nothing ...reinstall ...
Also .....if there is anything written on the screen ..read carefully ..usually it will say whats wrong ...and advise in same issues..like replace hdd ...or files missing ...or blue screen error from memory issues..

Nov 07, 2009 | E-Machines T6216 (827103077834) PC Desktop

2 Answers

Beeps 2 times & a warbling noise when trying to boot up - unplugging power lead & pressing ON/Off button & reconnecting power lead starts up OK - but it can be OK for several days & th


By warble, do you mean a high pitch non stop noise? If so... I think I went through that bout 2 months ago, it was a easy fix. Ifr it is the same problem

May 29, 2009 | HP Vectra VL420 Intel Desktop PC - Intel...

1 Answer

Beeps 2 times & a warbling noise when trying to boot up - unplugging power lead & pressing ON/Off button & reconnecting power lead starts up OK - but it can be OK for several days & then repeats the p


The Cause of Problem:

The Power Buttons electrical circle sometimes just braked it by one of sensors and the result is the 2 beeps and Power Supply is in protected mode error.

The whole computer is turn off but the power button is turn on and this is the nub of the matter. Because if you want turn on the computer you can't because already turn on but just the Power button and you can't do anything.

The solution:
You need just change the Power Supply and don't do anything just the power cable put into the Power Supply after turn off computer.
Finaly change back the Power Supply.

Apr 25, 2009 | HP Vectra VL420 Intel Desktop PC - Intel...

1 Answer

Wont start up


my wife has a presario that had a similar problem - it would boot up, then immediately shut down. I took off the side plate and blew off some of the dust inside. that worked for a couple of days then the symptoms returned. I took it apart again but this time I removed the cpu fan and the cpu heat sink. I cleaned all the **** off the fan and the heat sink and replaced it. this time it stayed on. I checked out the power supply. compaq installed a very cheap power supply - only 250 watts. a replacement power supply for the same machine but with an output of 300 watts is available. as soon as I can scrape up the change, I'm gonna change the PS

Jun 11, 2008 | Compaq Presario 5000 PC Desktop

1 Answer

Wont boot up or start - cpu fan does spin but switches off


You seem to have a lot of hardware in there, so trying to remove some items to lighten the Power Load was a good idea - but maybe too late.

Check your Power Supply - I suspect that you will need around 550 Watts or more. If you can put in another Power Supply (after disconnecting as many drives etc as you can) see if the problem re-occurs.

If it does not, then your Power Supply is failing and will need to be replaced (with a 550 Watt or above PS Unit). I would personnally think that a 700 Watt unit would be ideal if it were my machine.

Yeah, I know you said you replaced the Power Supply but didn't say if everything was reconnected nor what size Power Supply Unit you put in.

Good luck.

May 09, 2008 | MSI 915P NEO2 PLATINUM 915P LGA775 800FSB...

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