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Had a power outage over the weekend, monitor plugged in to power surge protector. Have unplugged monitor from power and computer itself, but monitor light is flashing an will not come up.

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Please let us know the model number of the monitor.

Posted on Mar 09, 2009

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My monitor will not turn on. Is there a fuse or something that might have gone bad?


You tried the power switch on the monitor? Checked all the plugs?

Sep 11, 2014 | PC Desktops

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Power too computer will not come after power outage


Check your surge protector, it may have tripped due to a surge in power.

If you didn't have it on a surge protector you could have blown a capacitor in the power supply. In that case replacing those is pretty simple just 4 screws and paying attention to what and where you disconnect from the mother board

Mar 29, 2014 | Dell Studio Slim-Tower Desktop Computer

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Computer wont turn back on after power outage


Power surges are like Radiation poisoning: the effects are cumulative. You need to have it on a Surge Protector (not just a power strip with an over-amp cutout,) that is AT LEAST 1200 Joules. Much higher if you live in a lighting-prone area, or are subject to frequent power-outages. Your Power Supply Unit appears to be on the edge of failing. I suggest you get it replaced IMMEDIATELY. A PSU with issues such as yours have been known to damage one or more of the other components inside your PC when it finally dies.....like the Hard drive, or a Memory module...even the CPU.

Aug 22, 2012 | Systemax PC Desktops

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Power to house went out during area power outage. Everything came back on except the computer? Tries to restart by holding power switch in, unplugged and replugged power cord - no response on monitor. ...


When the power is returned after a power outage it can cause a power surge and damage electronic equipment such as a computer. This is a reason to install a surge protection power board and connect your computer equipment to a surge protection board.
The switch mode power supply may be faulty and replacing it may get your computer operating again.
If you cannot DIY then ask a friend or take it to a computer repair shop.

Jul 14, 2011 | HP Pavillion s7420n PC Desktop

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The tower nor keyboard wont come on and its pluged in


Advise, c

1) Check to make sure THE receptacle in the surge protector that the computer is plugged into, is good.
I have had a few surge protectors where just THAT receptacle was bad.

("Hmmm, monitor, router, and printer has power from the surge protector." Checked the receptacle in the surge protector that the computer was plugged into, with a table lamp, found THAT receptacle was bad)

2) Receptacle in surge protector proves to be good?
Suggest performing the test to see if the problem is the Power On switch, or the Power Supply.
(The Power On switch is located inside the plastic Power On button)

The test involves bypassing the Power On switch, by using a jumper wire on the Soft Power On, in the ATX main power cable's connector.
Has nothing to physically do with the switch itself.

Using the jumper wire the computer (Power Supply) comes on?
Problem is the Power On switch.

[ Example of a generic ATX power on switch that I have found fits many computers,

http://www.directron.com/atxswitch.html ]

Using the jumper wire the computer (Power Supply actually), does Not come on?
The problem is the Power Supply.
Replace.

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

(Green wire {PS_ON} is the Soft Power On wire. It is jumped to ANY Ground {Black} wire)

Want to know how to Properly perform the above test? Please post back in a Comment.
Also post the computer manufacturer's name, and the Model Number.
(On the back of a desktop computer next to the Windows Product Key, or up on the side of the tower)

Regards,
joecoolvette.

Nov 08, 2010 | PC Desktops

1 Answer

No power cannot turn on


Suggest you check the simple stuff first.

Not checking is akin to a car that won't start, and tearing apart the entire fuel system, only to find it was just out of gas.

1) Make sure the receptacle the surge protector is plugged into, has power. Surge protector Power On light should be lit.

2) Check THE receptacle in the surge protector, that the computer itself, is plugged into.
Have had a number of expense surge protectors, where just THAT receptacle was bad.

("Hmmm, surge protector Power On LED light is lit. Monitor, printer, sound system, and router plugged into the surge protector has power. Should be good to go.

NOT!
Plug a table lamp, or similar device into THAT receptacle.
Make SURE it has power)

Surge protector, and receptacle in surge protector checks out?
Bypass the Power On switch.

See if the problem is a $5 Power On switch, or the Power Supply.

(Generic ATX Power On switch that I have found fits many computers,

http://www.directron.com/atxswitch.html

{The Power On switch, is located inside the plastic Power On button assembly}

This is information about computer Power Supply's,

http://en.wikipedia.org/wiki/Computer_power_supply

This is a basic example of an SMPS, (Photo at upper right. You can click on the photo to enlarge), and info about.
(Switched-Mode Power Supply. The main type of power supply used in personal computers),

http://en.wikipedia.org/wiki/Switched-mode_power_supply

By bypassing the Power On switch, you will be able to determine if the problem is the switch, or Power Supply.

Bypassing the Power On switch turns the Power Supply on?
Bad Power On switch.

Bypassing the Power On switch does Not turn the Power Supply on?
Bad Power Supply.

A jumper wire is used on the 20, or 24-pin ATX main power cable.
The jumper wire goes to the Soft Power On, (PS_ON. Green in color), to ANY Ground wire.
(ALL Black wires are Ground wires)
A MOMENTARY contact is used.

(Example of a 24-pin ATX main power cable, and it's respective connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24 )

In order to guide you in this procedure, I need to know the computer manufacturer name, and Model Number.

On a desktop computer this will be located on the Back of the computer tower, (Next to the Windows product key), or up on the side of the tower.
Some models have it where there is a door you open in the front, and the product number, or model number is located there.

Post back in a Comment.

Aug 07, 2010 | HP PC Desktops

1 Answer

My desktop dont come on


1) Check THE receptacle in the surge protector the computer is plugged into.

I have found more than once that One bad receptacle in the surge protector is bad.

"Hmmm, surge protector power on light is lit." "Monitor has power, amp for the speakers has power, and the router has power."
All plugged in to the same surge protector.

Tried a table lamp into the receptacle the computer was plugged into, Nothing.
Replace surge protector.

2) Bypass the Soft Power On of the Power Supply, and see if the problem is the Power On switch, or the Power Supply.

If you bypass the Soft Power On of the Power Supply, and the Power Supply comes on, the problem is a bad Power On switch.

If you bypass the Soft Power On of the Power Supply, and the Power Supply does Not come on, the problem is the Power Supply.

If you wish to know how to perform this simple test, just state so in a Comment.
(Believe upper right of your page)

Jun 17, 2010 | E-Machines eMachines Desktop PC

1 Answer

Same Problem - Flashing light - no power - after power outage


JD, get yourself a cheap battery backup surge protector, I have one and its saved my **** many times, I live in FL and with lightning and power outages its a real system saver.

Sep 16, 2009 | HP Media Center m7250n (ED842AA) PC...

1 Answer

POWER OUTAGE. now no power to computer


labefam,

sorry to say,but i agree,u rili killed ur computer..so the only thing u can do is to bring to a technician..coz there might sum parts of ur computer that were damaged..

Apr 06, 2008 | Dell Dimension 8200 PC Desktop

1 Answer

Compaq intel pentium 42.8ghz512mb


How old is your computer? Did you recently have a power outage or anything? Most the time if a computer won't turn on, something in it went bad OR an outlet is bad. Try this:

1. Make sure that the power switch is on, the switch in the back (on the power supply itself) is turned on, and everything along those lines is functioning.
2. If that doesn't work, and it will not power on AT ALL, make sure the cords are plugged firmly in place, including the surge protector and/or the power cord itself.
3. Try resetting the surge suppressor and/or plug the computer into a different outlet in the surge suppressor. Try other items in that surge suppressor (or even in the wall outlet, if that's what you're plugged into) to make sure that the outlet itself is working.
4. If your computer is plugged directly into a working wall or surge suppressor outlet, try a different power cord.
5. If your surge suppressor works, your wall outlet has power to it, and you are using a known-good power cord in the computer, you will have to go into more in-depth investigation as something inside the computer likely went bad. It could be the video card, motherboard, CPU fan, power button, or the power supply itself. Start by testing the video card and the power supply by (one at a time) swapping out a known-good component for the one you suspect may be bad. If it won't turn on after that, try swapping out the next and try it again. If it still will not work, it could be something more serious such as the motherboard or power button.

Good luck!

it could be a bad power supply or a bad motherboard. Other problems might cause issues, such as a bad video card.

Jan 16, 2008 | PC Desktops

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