Question about HP Pavilion a622n (PC108A) PC Desktop

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The light on the power supply (back of tower) and light on the front button that turns on the computer flashes. This is with the power cord plugged in. The computer does not turn on when I press the power on button in the front of the computer. I tried a different power cord from antother computer that works so i know it's not that. Could this be the power supply? this is for a HP Pavilion A622n

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Try removing the front panel make sure the button isnt clogged with dust or disconected failing that it may well be your power supply internal fuse which can be repaird but a trick job if youare not very good with a soldering iron you may get a replacement one on ebay.

Posted on Oct 06, 2010

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1 Answer

Computer wont turn on


Make sure the tower is getting power. There will be a green light on the back of the tower where the power cord goes. Make sure the cord is snug and that it is securely plugged in to your power source - I'm hoping it is a power surge strip and in which case, make sure the surge strip didn't get unplugged or turned off. If you have it plugged directly in to the wall then make sure that outlet has power by plugging something else in to it that you know works. After doing all of this, make check to see if there is a light on the back of your pc. If not, unplug the power from the back of the tower, wait 30 seconds at least, and then plug it back in. Hit the power button on the front just once, if it doesn't power up, press and hold the button in for a 2 seconds and release. If that doesn't work, your power supply may have gone bad. That happens from time to time. Good luck, hope this helps!

Jan 20, 2013 | Thermaltake Computers & Internet

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When I turn My Computer on all that happens is I hear the fans on the back running really loud and a light on the back flashes green. The light on the on button on front doesn't even come on, but I know...


One bad/faulty lead can cause a computer with lots of problems
replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA the ones that attach from your motherboard to hard drive
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Nov 08, 2010 | Gateway GT5220 PC Desktop

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WHEN I TURN IT ON IT DOSENT RECKONIZE THE KEY BOARD, MONITOR OR MOUSE. THE ORANGE LIGHT IS ON IN FRONT NOT THE GREEN LIGHT.


Hi,

Is the power button a steady abmber light?

If so follow the instruction below>>>>

Remove the power cord from the back of the computer. Then open the side casing of the tower and unplug the 24 pin block connector from the motherboard. The 24 pin block connector looks like this >>>>>

0b6066f.jpg


Once removed press the on/off button on the computer to dispel and residual power from the motherboard.
Then connect the block connector again and put the side panel back on and then plug the power cord back in and try to boot the computer up.

If its still the same then the power supply inside the computer may need replacing.


Good luck.

Jul 12, 2010 | Dell Dimension B110 PC Desktop

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Try unplugging the cord from the back of the computer for about 5 minutes and then try it again

Apr 14, 2009 | Compaq Computers & Internet

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Tower problems


You may need to replace the cmos battery, its a cr2032 3v button cell
Make sure all your expansion cards and memory are reseated.
Make sure all cables are reseated.
your power supply could be bad

If that doesn't work try this


Here is my fix for the dell dimension 4400 amber light problem. It works!
replace cmos battery.
then unplug power cord form wall about 5-10 secs.
then plug it back in, wait 5 secs.
If amber light comes on, press and hold power button until it goes out.

(with light out, press and hold power button while amber light comes on and goes off again holding power button 2-3 secs after light goes out.) repeat whats in parenthesis until computer turns on
it should only take about 6, 7 tries.

After the computer boots, you may want to setup cmos or boot into windows.
After you shutdown, unplug power cord for 5-10 secs then plug it back in.
Press and hold the power button, computer should come on.
I found that's the only way to turn on the computer.
If you shutdown and don't unplug power cord the computer may not boot, mine didn't.
Strange I'd say

A+ Technician

Apr 01, 2009 | HP Computers & Internet

3 Answers

Power light blinks


The blinking button is an error code. You need to call HP and they will help you determine what the code means and how to fix the problem.

Dec 20, 2008 | HP Pavilion a705w PC Desktop

1 Answer

CPU doesn't turn on!!


    • Power supply light on or flashes Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure: CAUTION: This product contains components that are easily damaged by ElectroStatic Discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap that is connected to a grounded surface, like the metal frame of a PC.
      1. Disconnect everything from the computer, including the power cord.
      2. With the power cord disconnected , press the power button on the front of the computer for five seconds. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps. NOTE: If the power supply fan makes an inconsistent grinding sound or stops and starts erratically, replace the power supply
      3. With the power cord removed, flip the red voltage selector switch to the opposite position. Wait about five seconds, and then switch the red voltage selector switch back to its original location. Ensure that the voltage selector switch is on the correct setting, 115V for North America. Performing this step ensures that the voltage switch is engaged and set correctly for your country/region. Figure 4: Voltage selector switch c00517964.jpg Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
      4. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
      5. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it. NOTE: If you find the device that was causing the problem was a surge protector, resetting a breaker or fuse on the surge protector may fix the issue.
      6. Remove all attached devices except for keyboard, mouse, and monitor.
      7. Remove any internal component that was recently added, such as video card, memory, CD, DVD, and hard drives. An added device may take more power than the power supply is rated for. If the problem goes away when the component is removed, the only option is to upgrade the power supply to power supply with a higher wattage rating.
      8. Check the power switch:
        1. With the power cord disconnected, press the power button on the front of the PC. The button should release easily and not stick in the socket.
          • If the button sticks, it should be replaced or serviced.
          • If the power button does not stick and appears to be functioning, continue using these steps.
        2. With the power cord disconnected, remove the case or side panel.
        3. Follow the wires from the power button on the front of the computer to their connection on the motherboard.
        4. Look at the power switch cables connected to the motherboard. If the cable has become disconnected, connect the power switch cable connector to the connector on the motherboard. Figure 5: Power switch connector on Motherboard c00517968.jpg
        5. Replace the side panel, plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
      9. Find the defective part:
        1. With the power cord disconnected, remove the case or side panel.
        2. Disconnect all power cable connectors from their connectors on the motherboard and from the back of internal devices (the back of drives). Make sure to label or remember where each cable connects for future reference. Figure 6: Example of common power connections c00540428.jpg
        3. Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:
          • If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.
          • If the LED is still flashing (it should not flash with all connectors removed), plug the power cable into a different power outlet that is known to be good. If the LED still flashes, the power supply should be replaced.
          • If the LED light is now off, plug the power cable into a different power outlet that is known to be good. If the LED stays off, the power supply should be replaced.
          NOTE: If an electrical storm or power surge has recently occurred, then it is more likely that the power supply, the modem, or motherboard is damaged and requires replacement. If the power supply was damaged due to power outage or storm, this may not be covered under the "act of nature" policy in the warranty statement. Refer to the warranty statement that came with your computer for more information.

Jun 20, 2008 | Computers & Internet

1 Answer

No Power / Start-up


if the power button on the front of the tower has no indications, then you most likely have a failure of the power supply.

Open the tower, and inspect for burnt wires. If you find no burnt wires, remove all PCI expansion card and all external connections, then connect the power cord and try to turn on. If no power, then you will most likely need to replace the power supply.

It is the least expensive part to replace on a no power situation. If replacing the power supply fails, then the front IO panel (Power button board) is next, then the motherboard is the 3rd most likely part that may have failed.

May 17, 2008 | Dell Dimension 5100 (D51L1) PC Desktop

10 Answers

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Regarding the blinking green light on power supply for hp a430n...I've had that happen as well when the computer is turned off for an extended period of time. It would not immediatly power up when plugged in to power. Hitting it and beating on the button didn't help either.

However, after calming down, I noticed that when I unplugged the computer that the light continues to blink, but gradually fades and goes out. So, I thought that since power supply holds a charge after being disconnected as can other components inside a computer that I would assume the converse: It needs to power up to "full charge" as well. In my case, I was right.

All I did was plug the computer in and leave it alone for about 20 to 30 minutes, go sit and cuss for a while. When I came back and checked it after that time, the front panel blue light was on and the green light on the power supply was glowing steady. The computer started right up! Thank goodness...stopped cussing.

If it hadn't, and I had tried all the resets listed above, I would have bought a new power supply too...but not this time!

Oct 21, 2007 | HP Pavilion a420n PC Desktop

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