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Puter wont turn on

During a self test my son unplugged the computer now it wont power up at all please help

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Re: puter wont turn on

Try to unplug again then plug in switch-o the power if it won't work then your power supply is busted you need to replace the power supply. if you want to make sure dismantle the power supply that connects to the motherboard, the connector has 20pins, then plug the power supply connect pin green and pin grey if the fan will rotate then the power supply is still okay.. if your power supply is ok check your outlet voltage if there is power including the circuit breaker that supplies power from this outlet.

Posted on Dec 17, 2007

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Hello, i have a dell inspiron 530 and when i turn it on, all you hear is the fan spinning and it doesnt stop. Nothing comes up on the screen and i've checked all the parts and everything seems fine....


Welcome to FixYa, the world's largest product support community.

Most of the time if a Desktop computer turns on but you see nothing on the screen,
It may be an issue w/ the monitor or it's cable connection.

Please verify that the monitor cable is connected to the correct port. By default the Dell™ Inspiron™ 530 only comes w/ a VGA monitor port (built-in graphics adapter) at the back unless you installed a discrete graphics adapter on the computer.

If the monitor is connected to the correct port then you might consider running a monitor Power-on Self Test (P.O.S.T).

How to do a Monitor Power-on Self Test (P.O.S.T)
1. Unplug the monitor's data cable, this is the cable that goes to the back of your computer tower.
If you are using an old monitor most likely you have a VGA monitor. Unplug the VGA cable.
2. Make sure the monitor's power cable is plugged in.
3. Turn the computer on.

Fig. 1. Sample Monitor Power-On Self Test.

Fig. 2. Sample Monitor Power-On Self Test.

If these troubleshooting steps doesn't help. Please reply to this post as we may need to go through more troubleshooting steps.



Jun 04, 2011 | PC Desktops


You press the power button on your computer and nothing happens

1. Find out if computer has power.
Are fans running, lights on? When there are no signs of power, 99.9% of the time its a faulty power supply. Before you replace power supply try this.Unplug the power cord to the PC, wait approx 10 mins and plug back in. Does the computer power on now? If so, it may have been a power surge that the PC experienced. You may want to invest in an Uninterruptible Power Supply unit.
2.Computer is turning off by itself.
This can be a electrical short to a serious hardware issue. Open the computer case and inspect the wiring. Make sure there is no chafing or exposed direct contact with metal. Look for loose connectors. Connectors can become unseated. Inspect and reseat all connections.
3.Computer beeps shortly after powering on.
The beeps are error codes and can be used to troubleshoot computer search google for number of beeps
4. PC powers on and display codes.
POST (Power On Self Test) codes, are usually specific to the manufacturer. It’s best to go to manufacturer support website the codes can point you in the right direction. If you get “No hard drive connected” error, reset the connectors on the hard drive and test again.
5. Computer turns on but the operating system wont load completely.
Boot up in safe mode by pressing F8 during boot up, select safe mode with networking and after everything loads, boot back up in normal mode. If you installed any recent drivers you can uninstall them and see if that helps if this is not helpful most of the time you will have to use a restore disk and put computer back to factory settings.

on Dec 07, 2009 | PC Desktops

1 Answer

My power went out in my house and when the power was restored my computer would not turn on...there is a blue flashing light in the back of the computer.

The blue flashing light is probably on your power supply. I suspect that the power supply was subjected to a voltage surge during your power outage. It may have damaged your power supply (or possibly other components in your computer)

Try unplugging the power supply from the wall socket and leave it unplugged for at least 5 minutes. Then plug it in and see if your computer will turn on. If it will not, you require the assistance of a PC technician to test your power supply and computer.

You should connect a surge protector or UPS (Uninteruptable Power Supply) to your computer to prevent this from happening again.

If you have any additional questions contact me by clicking on the "Add a comment" link located under your problem description on FixYa. Also, if you believe that this information was helpful to you, please return to the FixYa website and rate my response to your question.
Best regards,

Dec 31, 2010 | HP PC Desktops

2 Answers

My computer spontaneously goes into power save mode

go to starts, control pannel, display, screen saver, and power there you can set power options, i use never on all so you don't run into conflicts at all let me know, ps that is for xp if you are using xp

Mar 09, 2009 | IBM IntelliStation M Pro 6219 PC Desktop

1 Answer

Four beeps wont turn on, Dell 4700

The four beeps usually indicate a memory problem and it won't pass it's Power On Self Test. Try reseating the memory sticks, or, if you have two of them, take one out and try to start the machine and then swap them.
If this doesn't solve the problem, you most likely have a bad motherboard.

Feb 01, 2009 | Dell Dimension 4700 PC Desktop

2 Answers

EMachine tower doesn't boot up. Only the fan is running

try replacing your ram.if your ram is bad you wont get no picture on your monitor but your puter will start.2 if you have a video card turn off you puter for a few minutes and plug your monitor to your original display.

Nov 24, 2008 | E-Machines eMachines Desktop PC

1 Answer

Dell XPS 400 tower does not power up monitor?

The “self test” on the monitor displays when not plugged into a computer. This means that it’s working. The LED error code 2 and 4 means the video subsystem has a problem. Either your video card is bad or bad memory module. Try reseating video card and/or memory.

Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience.
Thank You.

Oct 26, 2008 | Dell XPS 200 PC Desktop

2 Answers

I cant get my puter to start after i put 4gb ram into machine, both slots work independantly. how can i fix this

First need more info on your setup. your puter may not support 4gb. If it does do you have the right ram. Make sure ram is same type. If so take ram out & reseat it. Make sure to shut down & unplug power from back of computer. If this does not work try putting one stick in & start puter

Sep 25, 2008 | PC Desktops

1 Answer

Pc starts and runs but wont boot up monitor shows no signal

1) When you turn on the computer, watch and listen for:

a) power supply fan, (power is on)
b) chassis lights (power is on)
c) ticking sound during memory test
(the BIOS POST is running)

d) beeps or rhythmical error codes
(POST failed, bad CPU, CHIP set, memory or video)

e) Monitor either comes on, displays garbled video,
displays a No Sync or No Signal message...

No depending on how far it gets:

Check power supply, cables etc.
Check video cable.
Check monitor with a different PC

Now unplug the power cord, with the computer still
on, this will help drain any internal capacitors.
Wait 5 minutes, then shut off the switches,
and open up the box. try the following,
one at a time:

2) Remove all I/O cards except the video card,
and don't plug them back in until the problem
is fixed. Unplug all the ribbon cables from
the mother board as well:

Hard drives, CD drive, floppies etc.

Make sure you make notes about how to plug it
back in, and cable orientation !!!

0) Re-seat all power cables: Red, Black Yellow harnesses.

1) Unplug and re-seat the video card

2) Similarly, re-seat all memory SIM/DIM modules,

3) Re-seat the CPU

4) Replace the video card

5) Replace memory, CPU or whole mother board,

Plug the good parts back in one at a time,
and test the machine.

Save for the power supply, there really is NO way to test
and isolate a bad module except by swapping/ trial and error
because of inter-dependencies.

For example a bad I/O card, any I/O card, can short circuit
the I/O bus, causing all other plug-in cards to stop working,
or even the main mother-board to freeze during the POST.

A bad power supply ditto.

A bad memory chip ... ditto.

The type of electronic instruments required to actually
test modern computers running at Gigahertz speed cost
hundreds of thousands of dollars, some cost millions, and
are only available to hi end manufacturers

Even the power supply will not power up for a voltage check
if the mother board is bad, although you can use a jumper
on the green wire to ground to force it on, when you unplug
the power connector from the mother-board, if you are brave.

Computer shops carry a lot of spare parts, and their service
department has gutted computers rigged up as test jigs.

They trouble shoot your system by either plugging your
stuff into their jigs, one at a time, or by plugging known
good components into your computer until the problem
is fixed.

This if of course possibly dangerous, since one bad part
can also fry other good parts that plug into it, or that it
plugs into. The compute shops, of course charge you
enough to make up for this.

If a computer is partially operable, it is also possible to
run software diagnostics.

If not, swap and pray is the only way.

Hope this helps

Please rate my answers, martin.

Jun 25, 2008 | HP PC Desktops

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