it shut down once and now it wont start.
2007-10-04 21:30:24 · 7 answers · asked by Anonymous in Computers & Internet ➔ Hardware ➔ Desktops
IF it a laptop then you are in a bigger trouble.
If it a desktop, you would need to replace the power supply if you don't see any green or other light when pushing the power button.
2007-10-04 21:37:00 · answer #1 · answered by Anonymous · 0⤊ 1⤋
You need to define "it wont start" when asking a question.
If you mean when you turn it on nothing happens, then you need to check your power. Some PC power supply have a mechanical on/off switch, check this is switched to on or 1.
If the monitor turns on ie you get some panel light, then pull the lead out of the back and plug it into your PC. If it works you now know where the fault is. If it doesn't, then you have a fundamental problem.
Take the case off, most motherboards have a LED on whenever the live power plug is inserted showing presence of the pilot voltage or flea power. This is what powers the "turn on logic". If this is missing, then your PSU is not very well. Take it out on a visit to your local computer shop.
If by "wont start" you mean power comes on,fans spin etc, but nothing is displayed, then you have a POST problem. Some machines (Dell) have 4 leds that cycle during POST ending with all off when no faults. This code and the web site will give you a clue.
Remove power by turning it off at the wall leaving the lead connected to protect logic from static discharge. Wait for the LED to go out, (pressing the power button should make it go out quicker as another test). Remove all add in cards, disconnect disks,cd drive etc. With the memory removed, when you turn on power you should get several bleeps, this is good, if no bleeps then CPU or motherboard bad.
Restore memory and re-connect your system disk. If now when you boot things look normal, ie disk activity LED flashing for about the time you expect it to boot up. This means that something you have removed is stopping the boot. Re-connect things 1 at a time, starting with the video card until you identify the cause.
If still nothing, disconnect HDD, connect cd and try booting from that. If still dead then you will need help.
2007-10-05 05:42:52 · answer #2 · answered by terryrow 2 · 0⤊ 0⤋
It appears that you have a "Hardware" failure. To solve this you will need to open your PC and check your hardware. The first possibility is your RAM. Check that your RAM has not come loose, if it has make sure it is secure and then power up. If the RAM is secure and you have more than one stick, remove the first stick of RAM and put the second stick in the first slot, try and power up. If the PC boots up, the stick of RAM that you have removed has failed so don't put it back. If it still doesn't boot, replace the RAM with the one that you removed and try again. If it still isn't booting, remove the graphics card and power up. If it's still not working, put the graphics card back and remove the sound card (if you have one). Do the same with any modem (which is not needed if you have Broadband). If it still doesn't power up after checking all the installed cards etc. it could be your Power Unit that has gone. If any lights are showing, when there is power, or any fans start up it's not the Power Unit and that can be eliminated from the possible cause. After checking the Hardware, if you still can't get it to power up it is going to need an engineer to sort it out. At any stage, if you can get it as far the BIOS, reset the BIOS to it's default settings (Performance Setting). Whilst trying to Boot, constantly press F8 or F10 to get to the Start Up Menu. Select "Safe Mode" and then go to "System Restore" and select a good Restore point. I hope this helps to sort your problem as if it doesn't it will be quite expensive for an engineer and any parts.
2007-10-05 06:01:37 · answer #3 · answered by kendavi 5 · 0⤊ 0⤋
Probably something simple like a power supply if there is no power at all, or a virus if the power comes up but windows wont start. If you do not know what I am talking about the you need to get it repaired. Before repairing a pc first consider the value and the age. I can repair a 10 year old computer and it is still an assett because I can do it for free. If you have to pay someone to fix a computer older than 3 years old then it might cost you more than it is worth. They are selling the same computer that was top of the line 3 years ago for $400 now. It might be cheaper to get a new one than repair an old one at a shop.
2007-10-05 04:38:09 · answer #4 · answered by helper999 3 · 0⤊ 2⤋
Wait for the power to come back on to the street.
2007-10-05 04:39:16 · answer #5 · answered by chezzrob 7 · 0⤊ 2⤋
have you checked to make sure it is plugged in correctly?
when you say 'it wont restart', do you mean it does nothing (no noise or anything), or what?
2007-10-05 04:37:39 · answer #6 · answered by chmod 4 · 1⤊ 1⤋
i think there is no way out of this.better send it for repairs or buy a new one.
2007-10-05 04:33:13 · answer #7 · answered by Eminem 1 · 0⤊ 2⤋