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PC NOT WORKING , NO LIGHT ON KEY BOARD SCREEN SAYS NO SIGNAL. SWITCH PC ON TWO GREEN LIGHTS ,NO FAN SOUND

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  • 56 Answers

Your PC's smps problem.

Posted on Sep 01, 2010

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Posted on Jan 02, 2017

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Green power light comes on goes off then on again stays solid, moniter says no signal, mouse lights up, and three red lights on key board flash then nothing why?


If the monitor power light is on or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor needs replaced.

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Acer Aspire x5810 black screen


Can you open the setup page a reboot to verify your settings? Try a system restore/recovery. I'm not sure if that will help but it's a start. When you alter the BIOS or the System Registry it can be a minefield, one wrong move and will you know. Second, would be to remove the CMOS battery for a few hours and see if that clears up the issue.

Nov 13, 2012 | Computers & Internet

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I have a proxima s540 ultra lite data


From what you describe, it sounds like a fan isn't working. When you turn on a projector, it will go through a quick self test--checking that everything is operating correctly. Some of the fans send out a signal to the main board telling it that they are running. If no signal is received, the board senses this and auto-shut down occurs to protect the unit from heat damage. The errant fan could be spinning but the computer pulse might not be being generated. It will require a tech to find this out.

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2 Answers

Cpu no up, monitor shows


could be the whole pc is fried :(

Jul 10, 2009 | Computers & Internet

2 Answers

Power light goes out but power remains thru the m-board fan runs


you need to replace the power supply. The fan sound is the fan for the power supply and not the computer. for cheap parts or used goto headgap's. They know what you need and probably even help you replace it yourself.

Jul 03, 2009 | Computers & Internet

1 Answer

Vizio P50HDM No Picture/No Sound


this is most likely the sustainer board(s) problem. Replacing the sustainer boards should correct this problem for you. you can get the parts at vancebaldwin.com

May 29, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Vizio P50HDM No Picture/No Sound


replace the sustainer boards should correct this problem. New sustainer boards may cause red and green pixilation. If this happen, replace control board and TV is as good as new.

Apr 05, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Pover up trouble


sounds like something is drawing down on your 12 volt supply drives or on board regulators. Try it without the drives connectged, and see if you can get the system to boot up(you'll just get a notice that your drives are unavailable, but you'll already know that, right?

got backup for your Dell?

Feb 15, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

3 Answers

Black screen on start up


yep

unplug the system
open the case
look for a battery and take it out
take out the memory (rams)
wait ten minutes
press power button 5 times
put everything back in

and boot it

Jan 12, 2008 | Dell OptiPlex GX270 PC Desktop

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