When i try to turn my computer on, the green power light turns on and the power cord light turns on I hear the fan running but I get nothing on the screen. i tried running it on battery power only, I took the battery out, waited 5 minutes and put it back in. Please help.
I also have this problem with my Acer netbook. I have only had it for 4 months and am in Turkey on an extended break at the moment. I have taken the netbook to a dealer here and have been told the problem is the motherboard, verified by Acer themselves. I am not happy with this as the netbook was not cheap and there appears to be a few Acer models with the same problem
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1st, it is the monitor that says, "No Signal." That being; is the actual computer turned on?
If it has a green / red power light and you can hear the hard drive and fan running inside the computer case, then check the cable that runs from the back of your monitor to the back of your computer's case.
It may be disconnected of just bad.
If you cannot hear any noise inside the computer case or there is no power light on, then check the electrical cord in back of the computer's case to the wall. If that is good, check to see if there is a light switch that turns that socket on and off.
Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.
When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?
When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.
Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.
Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.
Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.
You replaced power supply and your made sure you plugged everything back into the motherboard snuggly and in it's proper place? If so it might be your motherboard is bad.
Make sure you have the new power supply turned on. Sometimes there's a O/I switch on the back of the power supply. Flip it and try to boot and see what happens. You might have another bad power supply. If so your motherboard might be burning them out.
Try removing the power cord for 30 seconds and press and hold the power button. After 30 seconds put the power cord back in and press the power button to see what happens.
Do your fans work when you press the power button? Do you hear any fans running?
Disconnect everything from the motherboard except the power supply, CPU and power switch.
Turn on the computer. You should hear 3 beeps because you removed the memory.
If you don't hear any beeps, check the power supply. Check all the connections. Did you connect the 4 pin power? Did you skimp on it? A common mistake is to get a cheap, high-power supply. Just because the box says it's 1000 WATTs doesn't mean that will carry a steady load.
It's either a bad motherboard or processor. If you have another processor that is supported on that board and you know it works, try it. If it boots return your CPU for a good one.
Unfortunatly, if it doesn't boot with a known-good processor that just proves the board is bad; it doesn't prove your CPU is good. You may have more issues.
if you have onboard video try a video card that fits in PCI or AGP slot or try a different video card in place of the one you use with everything else seeming to be correct this seems like the only thing you have not done
Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.