cannot turn off gateway gt5674

December 29, 2013 at 19:22:28
Specs: Windows vista
does not seem to boot, I have unplugged power supply to shut off fan, does not seem to reboot, the monitor shows up as no signal in HDMI, the monitor works on laptop with RGB, I put the computor in sleep mode and then hit the blue button to turn it off for some dumb reason and now it will not start up again, yes help please...Sincerely, David

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December 29, 2013 at 22:34:20
If you hold the power button down for 4 or 5 seconds it will shut off.

I'm thinking it's a hardware failure and not windows refusing to come out of sleep mode. You might want to open the case and temporarily disconnect the hard drive. Do that with the power cord disconnected. Then reconnect it and start the computer. You should get the normal posting or logo screen and then some message about no boot drive available. But if instead nothing shows on the screen then there's an internal hardware failure.

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December 30, 2013 at 20:25:37
I put in another power supply, nothing changed, fan comes on when I attach the power supply cord and will not shut off by the switch, sometimes it takes a couple of minutes for the fans to come on or the cd drive to open, monitor says no signal using the HDMI 1 or 2, I also tried the RGB cable and again no signal. The blue light by the power switch is not lit. Your thoughts? Thanks for your help. sincerely, David

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December 30, 2013 at 22:19:14
That certainly is odd behavior. Does it give any beeps when you start it up?

If it has a 115/230 voltage switch make sure it's in the correct position. DON'T GUESS and if it's necessary to change it, do so only with the power cord removed from it.

Try temporarily disconnecting all the drives--hard drive and cd/dvd--and remove all unnecessary cards and try starting it up. If you get the logo or posting screen then one of the disconnected items is likely at fault.

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December 31, 2013 at 02:49:34
Just to clarify - this is desk top not a laptop; as initially I misread this as a laptop...

What make and model - whichever it be?

Did you make "any" changes to the system prior to fault arriving?

If a desktop, have you carefully checked "all" on-board connections?

Do you have a voltmeter, and are happy to use it inside the unit?

Is the on/off switch a physically mechanical operation; in that you can feel and maybe even hear it operate - (click) - rather than something akin to a soft contact... Is there anything immediately built onto the rear of the switch...

Daveincaps suggestion immediately above are worth following too; not least the psu incoming mains voltage setting - although I think many these days auto- sense incoming (line voltage) and "adjust to it accordingly"...

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