Find out what brand your motherboard is and look for the beep codes, each motherboard is different but these beeps are there to tell you the problem. if it isnt turning on when you press the button it is most likely a power supply problem like you said and you should try reconnecting all the power connectors to the motherboard and make sure everything is in place. also look for the voltage switch on the back and make sure it isn't at the wrong voltage that has happened to me more than once ;)
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Hi this happened to me a few weeks ago. I disconnected all other appliances (printer, scanner etc) and tried again-the pc switched on! It seems the power cut had blown my scanner and while connected to my pc prevented it from switching on (to protect the pc I assume?) If that doesn't work, it may be the power supply to your PC was damaged, in which case you'll need to purchase a new one (not too expensive)
PS When you get it working again, invest in a power surge protector, again not too expensive on Ebay etc.
Hmmm....you press the power button on the front of the case. I am not sure what you need exactly. If the computer has had a different power supply installed there could also be a power switch on the back of the case.
If everything is plugged in correctly and you don't hear fans or hard drive sounds, you most likely need a new power supply.
If you cant see or heard any boot up sounds, fans and especially if you dont see any power or green led lights at all ;
If your power cord is plugged into a power strip or surge protector, power cycle your strip or surge protector by turning off and on.
If power outlet has a wall switch make sure its on
Check that your power cable is securely plug in to both ends
Check that at the back of computer, specifically on the back of the power supply unit that the switch is on "1" position and NOT on the "0" position ( 1 is "ON" , 0 is "OFF" )
Check that the power outlet is not damaged by pluging in another good known device (such as a blowdryer, shaver, lamp, radio, etc, etc) to see if its the power outlet or not.
Can you see power or green led lights and hear the fan on but no display ? If this is the case , check your monitor connection at both ends. If they are secured open up your case and see if you can smell any burnt smell or check that all cards especially video cards are properly seated.
Re seat your RAM and any other cards that plug into the Mother Board such as PCI cards then try starting the computer again. If that doesn't fix it, then you can uninstall devices and try to boot until you find the culprit, as those beeps you hear sound like hardware error beeps that can be caused by faulty hardware (even keyboards or mice) that plug into your computer. Eliminating all removable hardware should help you determine whether it's an add on component or if the Mother Board itself is bad. Good luck
No beebs, no bueno. Unplug the power cord. Unplug the wide multi colored adapter from the motherboard and reseat it. make sure the other conntections are firm while you're down there and have the case open.
If you don't know what I'm talking about or don't want to crack open your PC then buy a new Dell and hae someone slave up your drive and transfer the information.
The problem is with the inverter board. It is pulling down the main power supply and cycling it on and off (crowbaring). If you disconnect the power supply cable to the board, the power supply will stay up and the power on lamp will cycle as normal. There seems to be a problem with one of the high voltage transformers on the board. I will let you know if I can find a suitable replacement of if there is a way to get an inverter board inexpensively. Good luck!
Hi infofreak, Try to follow these steps one by one. 1. Remove the power supply cable from the hard disk, CD/DVD, floppy drive or any other device you might have. 2. Check the wires that go to your front panel ;pwr sw, reset, hdd led, pwr led, speaker etc. Make sure there are at the correct position. 3. Now turn on your computer, if ok you should see some info on your monitor screen. 4. If ok, you can put back the power cable to hard disk only left the others open. Turn on the computer , if ok then proceed with other device one by one. If something wrong in between then maybe your power supply isn't deliver enough power to your system. Get a larger rating power supply. 5. If step 3 is not ok, then take out the power cable on the motherboard from the power supply. Wait a few seconf and place it back to the connector. Make sure it is securely fit, you should hear a click sound once it is fitted in. Turn on your computer. If Ok repeat step 4. 6. If still not ok, as step 5 this time take out the CPU.
Try the above steps and see whether they can solve your problem. Good Luck
Sounds as you have a bad ballest. The ballest is the power supply that turns your lamp on.
You can check your lamp by removing it and it should be clear and no broken pieces of glass.
With the lamp removed install the cover and turn it on you should hear no noise and when the power light turns red you should see a LAMP red led blink every 5 seconds. If no noise then the lamp is bad. If you do hear noise you have a bad ballist.
Hope this helps.