Question about HP Media Center m1080n (PC099A#ABA) PC Desktop

2 Answers

Power Green Light Flashing HP Desk Top PC m7250n

My computer is HP Media Center m7250. Today, we experienced power outage. After that, I can not power up the computer. There is a green light on the power module, which is flashing. Then I pulled the power plug off. the green light still flashing, but the flashing slows down and finally dim. When I plug power back, the green light flashing again at a constant pace. Does anyone experience the same problem and know a solution.

BTW, HP costomer support said they can boot my computer remotely if I pay $99 for extended warranty.

Dear Hatehp's,

Thank you sooo much. I have an HP m1206n or something like that with the same exact problem. Followed all the instructions at http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&dlc=en&product=471588&rule=38432&docname=bph06788#bph06788_section_2
the solution here says to get the computer serviced or replace the mother board. I figured I would try your trick first. Worked like a charm. Just as long as you don't pull power from the tower then the green led light on the back begins flashing again.

T

Posted by on

  • 3 more comments 
  • Anonymous Oct 05, 2008

    my pc won't power up only a green light is flashing

  • pdbmjb Oct 20, 2008

    Hi
    My HP Pavillion PC won't power up and all I've got is a green flashing led at the back near the power input. Can anybody help please?


  • Anonymous Nov 03, 2008

    Brill! This fix seems to work on other HP boxes too - we just fixed the same issue on a dx2250m.

  • mrrowdyman Jan 27, 2009

    yup same here, what was the tip you mentioned?

  • rebeckahfp May 11, 2010

    I have the same problem with the flashing light and the hard drive not turning on.



    My screen, printer, speakers, etc all have power to them. But my fan is not running.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • HP Master
  • 5,660 Answers

The 'cure' for this is to replace the power supply.
Inside your power supply are Electrolytic Capacitors. These are Filters for a power supply. To simplify detailing the construction of them, let's just say they are small aluminum 'cans', with an Electrolytic paste inside.

They are used to filter the incoming AC electricity from your house, (Business, school, whatever) They are also used to filter the DC electricity, coming out of the power supply. (Your computer power supply converts AC electricity, into DC electricity)

The one's we're going to concern ourselves with here, are the Output capacitors. The one's that filter raw DC into true DC.

When a capacitor (Of this type) starts failing, it's because Electrolytic paste is developing a gas inside. (Hydrogen gas) The gas expands, breaks a seal, and begins pushing the paste out. (Oozing out)
So much paste loss, and the capacitor can still function, but at a weakened state.

These capacitors deal with the voltage power rail for a power supply. Weak capacitor? Weak voltage rail!

Your processor requires a steady, 'clean', supply of DC voltage. It operates in a very TIGHT tolerance. Too much, or too little, it turns off. Too little it doesn't turn on.

The power surge has weakened Electrolytic Capacitors inside your power supply.
Lights light up. Fans spin. It sounds like the harddrive is running. (It IS! It's just sitting there spinning. More about that to come)

ALL the lights use less than 1 watt. EACH fan uses 2 to 3 Watts. The harddrive just sitting there spinning, uses about 5 Watts.

When it's time for the processor to turn on, (BIOS turns it on), it can't! Processors use 55 Watts to 125 Watts. Depends on the processor make and model.

Your harddrive just is just sitting there spinning, because the processor isn't running.

Solution? Replace the power supply, be happy.

Posted on Apr 10, 2009

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Had the same problem. I found that if I unplugged the power supply from the motherboard, while ON in then plugged it back in, while ON the light stopped flashing and then I pressed the power button and the PC worked fine until I shut it down. Then the power supply started flashing again until I repeated the process. I just found this HP article that may be the solution which addresses the issue we are having.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&cc=us&lc=en&dlc=en&product=391933&dlc=en&lang=en#bph06788_section_2

Posted on Aug 24, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

The power green light on my hp pavilion t450 uk pc keeps on flashing and my computer is not coming on


i have the same problem and my power button is broken. i just stick a knife in the side of the button and wiggle it around. maybe your power button is ********.

Aug 28, 2011 | HP Media Center m7250n (ED842AA) PC...

1 Answer

HP m7250n shuts down unexpectedly.


your power supply is faulty you will need to replace it. If you recently installed a new hardware it could be you don't have enough power to, either upgrade you power supply or remove the hardware.

Feb 27, 2010 | HP Media Center m7250n (ED842AA) 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

Hp cpus power supply green light constantly blinking


As always verify all cords are plugged in properly. After that it sounds like you power supply went out. It is not that hard to replace. Make sure you unplug power cord. After you remove the pc cover, Usually you just need to unscrew 4 screws for the power supply. Somewhere on the power supply it should say how much watts it is. Anywhere from 200 watts and up. Just replace with exact wattage.

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

1 Answer

Power outage, now pc will not power up at all.


sounds like the surge protector didn't protect. I would change the power supply.

Jun 12, 2008 | HP Media Center m7060n PC Desktop

1 Answer

Power outage, now pc will not power up at all


OK FIRST A POWER SURGE PROTECTOR WILL ONLY PROTECT YOU 7 % OF THE TIME, WHICH YOU JUST REALIZED. SO YOU NEED TO BUY A BATTERY BACKUP ALSO KNOWN AS A UPS.... I CANNOT STRESS THIS ENOUGH. BRING YOUR PC TO BEST BUY AND THEY WILL TEST YOUR POWER SUPPLY, IF IT TESTS OUT OK THEN YOU BLEW SOMETHING IN YOUR MOTHERBOARD. GET A BATTERY BACKUPS/UPS!!!!!!!!!!!!!!!

Jun 12, 2008 | HP Media Center m7060n PC Desktop

1 Answer

HP Media Center PC m7250n will not power up


hold the start button in and check the back of the case to see if the power supply fan turns while the power button is depressed. If it turns while the button is pushed, but then stops when you let off the button, then the power supply is probably bad and needs replacing.

Jun 01, 2008 | HP Media Center m7250n (ED842AA) PC...

34 Answers

Power Green Light Flashing HP Desk Top PC m7250n


During a power outage their is a surge when power come back on the grid (surge can be caused by lighting strikes akso). This surge trips the internal procters inside the power supply to protect the Mother Board, hard drive, processor and fans and any device that pulls wattage from the power supply. Since all these power using devices are trying to pull power at the same time to boot the computer back up one ends up with a loop of surge thrugh the power supply with a protective trip, reset, surge again and trip again. This will continue in this loop as the computer is trying to boot all the devices at one time (Mobo, Hd, processor, cooling fans and other devices). Simoly, more power wattage is being demanded than the protectors will allow at one time causing a protective shutdown followed by a restart followe by a protective shutdown in a continious loop.
The normall sequence for a boot is to boot the board, processor and fans followed by a boot of the hard drive, and other boot devices once the board is energised, NOT all devices at the same time, as this results in an overload and trips the protectors. This protective loop is indicated by the blinking light as the power is turned on and then shut down for protection as the wattage pull is over the demand that the protectors will allow.
Blinking light indictes you are in the protective loop.
SOLUTION: 1. Disconnect the Mother Board connector, with the computer unplugged, this will allow the power supply to reset at maximum wattage upon reboot.
2. Disconnect the Hard Drive power connector and ay boot device power supply cables, this will allow the Mother Board, processors and fans to boot without an overload of the protector inside the power supply.
3. Plug in the computer and the indicator light will be solid green indicating that it is reset and out of the loop.
4. With the computer pluged in and the Power Supply fully energised, plug in the Mother Board. The computer will now boot, and the processor fan will come on and the cooling fans.
5. After computer has rebooted, shut the computer back down and connect the Hard Drive power cable and any other power cablis that were unplugged.
6. Reboot with all cables connected and you are up and running again.

POWER SUPPLIES HAVE AN INDICATOR LIGHT FOR A REASON.
REMBER - BLINKING LIGHT IS AN OVERLOAD OF THE PROTECTORS AND ELLIMINATING THE OVERLOAD SOLVES THE PROBLEM AND THAT THE POWER SUPPLY IS WORKING AND CONVERTING POWER.
NO LIGHT MEANS NO POWER OUTPUT AND THAT INDICATES THE POWER SUPPLY IS NOT FUNCTIONING AND NEEDS REPLACED.

Hope this helps everone with power outages and lightining strikes. It is a rather common problem and can also occure when building a computer and one missmatches the power supply with the board wattage needs. If the board wattage needs are greater than the power supply output you will get stuck in a potective loop eventually. WHEN BUILDING A COMPUTER ALWAYS MAKE SURE THE POWER SUPPLY CAN PRODUCE MORE WATTAGE THAN YOU CAN CONSUME AT THE MAXAMUM LOAD.
Have a great computing experiense.

Jan 13, 2008 | HP Media Center m7250n (ED842AA) PC...

Not finding what you are looking for?
HP Media Center m1080n (PC099A#ABA) PC Desktop Logo

2,282 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP PC Desktops Experts

Fred Sops

Level 2 Expert

271 Answers

john smith

Level 2 Expert

366 Answers

Gavindu Dileepa

Level 1 Expert

10 Answers

Are you a HP PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...