Question about Computers & Internet

Open Question

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
I have just come back from holiday and had switched off all plugs. When I went to switch everything back on the green light by the power socket on my HP MC m7000 flashes constantly but does not power up.

Posted by on

  • thesearcher Jan 14, 2009

    Same problem as one described. I switched off all power in house when on holiday and now have a green flashing light at the rear of my HP m7000 but no power. Seems odd....

    Frustrated

  • Anonymous May 01, 2009

    i have the same problem as you guys but on a m7000. i just left my house with my computer on for about 2 hours, nothing crazy, and i get back and its off, wont turn on, with flashing led on the back by the power supply

×

Ad

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
joecoolvette
  • 5660 Answers

SOURCE: Power Green Light Flashing HP Desk Top PC m7250n

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

Ad
stif_NEC
  • 441 Answers

SOURCE: Ive recently upgraded my BIOS on my Compaq

check if you bios built in video is enable and try to disable that and use your video card, if you are running in built in video card then increase the size of the video memory

Posted on Jun 09, 2009

  • 108 Answers

SOURCE: Which out of these would i have to download to fix

chipset drivers would be your best bet of the group. Memory card readers are usually plugged into USB headers on the motherboard.

Posted on Oct 16, 2009

SOURCE: SR1620NX Under Device Manager, SM Bus

Hi, I went to the HP page for HP Compaq Presario SR1620NX -
and searched for SM bus controller.

There was a help page that came up and looked like it may work.
Try:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02522280&cc=us&dlc=en&lc=en&product=1127351&tmp_track_link=ot_search

It looks like the next step is to determine which chipset you have and go there (intel, AMD, nvidia) HP offers a link to these websites at the bottom of the article.

Have fun, Good luck.

Posted on Dec 16, 2011

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

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...

2 Answers

Power Green Light Flashing HP Desk Top PC m7250n


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.

Apr 02, 2008 | HP Media Center m1080n (PC099A#ABA) 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?
Computers & Internet Logo

Related Topics:

739 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...