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I have an acer aspire l5100 desktop pc (mini pc) and one day it jut shut down and it wont turn on. i press the blue button (power button) and it turns on, the fans are not spinning , my mouse is glowing and I don't have picture on my monitor, I know it should beep when it starts up, it does but only once, instead og twice. I took it to the place where I bought it and they said it's a motherboard error, but I have seen an thread on a forum with the same problem as I am having, people say that they just restarted the CMOS or somenthing like that (CMOS jumper idk.) can i fix that? I mean how do i do that CMOS thing? :D i know i need to open the case and svitch that jumper, but how do I remove the case? :D

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Black screen on boot up: When I turn on my PC (HP

deff. i could bet 99.9999 percent you got a saver virus that did this . there is a easy fix. when u turn the power on do u see the beginning of boot up were it says f12 for setup. if so u would be able to click on boot options and reinstall windows with a windows cd (xp,vista or seven) if this does nto allow you a good way to check if its the mother board or not. if u take the memory out of your motherboard and start computer you should here 6 beeps. if you do not here 6 beeps this tells us its the mother board

Posted on Jan 14, 2011

  • 76 Answers

SOURCE: acer L5100 install problem

I think it would get power through the Moniter so I don't think you need a power cord for the CPU. Hope this helped =)

Posted on Feb 25, 2008

  • 301 Answers

SOURCE: Acer Aspire Sa90-lb7h desktop Will not turn on

I guess it is a power supply failure can you try and plug it directly to light without using battery remove the battery before you power it on then notice how it behave then you will know the actual problem if it power on with light then it is battery problem. if not the check the harddisk maybe it is not properly fit in. or does it show bios setting or welcome bios

Posted on Jan 21, 2010

  • 35 Answers

SOURCE: I am working a computer an Acer Aspire M5640

Nothing showing up on the screen, definitely not a monitor issue the way you describe it. And you did all physical repair checks and such? Then the most likely problem I see is with the operating system. Windows Vista is so glitchy that any number of things could go wrong with it. I wouldn't put it past that OS. If you could get past the monitor issue perhaps you can uninstall that OS and upgrade to windows seven. Otherwise I'd take it in for a more professional diagnosis =/

Posted on Mar 23, 2010

  • 218 Answers

SOURCE: i have dell optiplex gx60 mini desktop pc, it has

sounds to me like the psu(power supply unit) has failed i would replace it with a like for like swap hope this helps

Posted on Jun 02, 2010

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