SOn pulled on power cable, power went off.
since then PC turns on but get no signal through to the monitor no start up bleeps.
It's as if it's in hibernation. But have no way of getting it running again.
Make sure your computer is off then:
1- keep press and release "F8" button on your keyboard while turning your computer on.
2- you should see a black screen with some text on it. choos "Safe Mode"
If you still can't see anything you need to make sure all cables are connected and are not damaged.
If still have problem you need to open your computer case and fasten all cables and cards because when your son pulled the cabel this could moved your computer case unsafely and loosen the cables inside.
If you still have problem this means your hard drive has been damaged due to sudden movement while it was operating.(even if it's not operating sudden movement coulds damaged the hard drive). you need to buy a hard drive and install a fresh window on it but if you can not do it.
Find your local computer repair shop (Yellow page- Thumson Local ...)
Please let me know of your progress and leave me a good feedback.
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Sometimes if a VGA cable is not screwed into to both your Tower and your Monitor, it can get loose and thus resulting in no signal.
Another cause of a Monitor Displaying the no signal message would be due to the Graphic Card failing, or possibly due to the Graphic Card not correctly being seated.
Usually P3 and P4 refers to a cable on your power supply that needs to be attach to your motherboard to supply extra power.
If your P4 cable is not plugged in before turning on your computer, this will also result in your Monitor displaying the no signal message.
Keep in mind though, if your computer has not been opened or is not a custom built PC, you should not have to worry about such issues as your P4 cable should in theory be connected. However I guess safely checking won't hurt anyone.
Check physical connections first, check monitor cable if securely plugged in and then check power light of monitor. If power light on monitor is amber or yellow it means that monitor is not getting a signal from cpu/ tower. Try to do a power drain on the computer, remove power cable at the back of the computer and then press and hold the power button for 10 secs, after that plug in power cable again and restart the computer.Check if there is any connection if not then try to use another monitor, a known good one. If you get a video from another monitor it means monitor is already defective.
your pc probably freezed up for some reason, you can turn it off by keep pressing the power button. After a few seconds it should power down.
reboot the computer, he wil probably start a checkdisk and afterwards your computer should be fine.
backup your pc asap, and try to find the reason for the freeze (recently installed new drivers/software?)
Have you tried a different monitor to see what happens? Does the monitor actually say "no signal"? If it says no signal then make sure the cable is connected from the computer to the monitor securely. And in worst case scenarios, one of the RAM sticks may be loose. Just pull them out, clean out any dust and push them back in until you hear the click of the RAM locks.
first check your monitor cable, remove it and fix it again.
even if monitor dose'n start then open your cabinet and inside it there is one auxilary cable( having 4 pin connector)if wire is removed then fix it on motherboard near cpu fan n ur problem will be solved.
thanks for a chat.
any more problem then you can ask me.