Question about HP Pavilion Media Center a1330n - AMD Athlon 64 2.4GHz Desktop Computer (Open Box Product, Limited Avai... (EL466AAABAOB)

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Need part# for the following HP part: plastic power button. See it here:¤t=PDR_3959.jpg

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  • digitaltripp Mar 10, 2009

    No I did that and they sent....The switch. I do not need the switch. I need the plastic peice shown in the link above (copy and paste into your browser address bar to see what it looks like) that pushes the actual power switch. This plastic peice snaps into the front bezel and glows blue when the pc is on.


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Go to this website.

There is a number you will have to call them and ask if they have it. they have part number for a power switch assembly, for the A1330N but you will need model #. there are 2 possible.

Hewlett Packard (HP) PC / Server Miscellaneous
Hewlett Packard (HP) PC / Server Miscellaneous: On/off power switch assembly
Type: Factory Direct Price: $10.00Be aware this same part number will fit several different models. They do this to save on production costs.

Hope this helps.

Posted on Mar 10, 2009

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Hp pavilion power button removal

ok take off both side panels at the front inside you will see 3 plastic lugs on each side push them to release the front panel there you have access to the the power button.

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I have a compaq SR1630NX. I cannot turn the computer on. The green light in the back is on so there is power. I think the switch is bad as it feels broken does not click any more. can I get a new one. What...

Hi Sandy, It might just be that the power button is depressed or that the part that holds the button has been moved back too much.
What I did was remove the power button from the machine, checked the connections to the motherboard and removed then replaced the actual power button from the plastic that's holding it against the front panel of the computer. (it's a gray plastic square that has a black power button) Check that the button depresses when you press it now. For me, it turns out the plastic part that holds the power button was pressed back too much. Removing and then putting it back and pushing it all the way to the front (the actual gray box), fixed the problem for me. Just check that the button from the plastic front panel and the actual button (gray plastic with black lever) are actually working and make contact. Maybe try using it a bit without the front panel?
I hope it may be as simple for you as it was for me. If you do this, just don't forget to remove all power from the machine and remove the plastic front panel from the case. Good luck!

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We need to follow some Troubleshooting steps

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The on/off switch does not return to the front when switched on. Seems as if the spring behind the button is weak

jnorsworthy I don't know if the design still holds the same for the Power On switch in the Slimline S3100N, as it does for the Power On switch designs I am used to.

[The Power On switch is located inside the plastic Power On button ]

The one I am used to;
1) Has a square block like shape.
2) The square block is composed of two halves. The two halves fit together like a clamshell.

A) A metal cover with a hole in the center for the top half.
B) A plastic block for the bottom half.

Inside there is a 'plunger', if you will.
The plunger, or post, moves up, and down.
The post is allowed to move up, and down through the hole in the top cover.

The plunger presses against a thin, flat, disk, convex shaped piece of spring metal.
The outside edges of the metal disk are connected to one side of the Soft Power On circuit.

As the plunger is moved down (By the action of pressing against the Power On button), the metal convex shaped disk flattens out.

In the center of the plastic base is the other side of the Soft Power On circuit. The center of the flattened out metal disk touches a contact in the bottom, of the plastic bottom half of the switch.
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This generic ATX power on switch, is an example of the type of Power On switch I am referring to,

You may find the above generic example is a replacement for the one in the Slimline S3100N.

This is HP Support, the support page for the HP Slimline S3100N desktop computer, and the Manuals page,

On the above page scroll down to the heading - Upgrading and Servicing Guide, and left-click on it.
(It's a PDF file, and may take a few seconds to download. May take a few seconds before you see the first page)

Shows how to open the computer case, and remove the Front Panel. (Front Bezel)

Computer unplugged from power, Observe Anti-Static Precautions.

Anti-Static Precautions:
Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.

1) Work on a table
2) Computer unplugged from power, computer case open
3) TOUCH the metal frame of the open computer case to relieve your body of Static
4) If you leave your computer in the middle of working on it, be SURE to touch the metal frame again upon your return.

Most Power On button assemblies have two tabs, or three, that protrude out from the body of the assembly. These tabs snap into place into the metal frame of the computer case, and into a rectangular hole. They have a hook on one side. Gently squeeze the tabs in, or out. Depends on which way the hooks face.

The plastic Power On button assembly generally has tabs that hold the Power On switch in place. These tabs are eased over to allow removing the Power On switch. You may find that the plastic tabs are brittle due to age, and the heat inside the computer through the years.
You can use a hair dryer set to low heat, and wave the hair dryer slowly back, and forth to soften the plastic.

Motherboard information:

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Where can I get a hp pavilion a520n power button switch? ;)
or you can try
if that doesnt work just call 1-800-711-2884 HP tech support number and ask them ;)

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Thanks for using fixya

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Here is a manual that explains how to remove the front bezel. Please follow only steps 1 - 8 and 14 - 18. The rest of the steps are not necessary for this issue.

After you have the front bezel disconnected, I would suggest checking the button on the bezel for debris that may be blocking it from making good connection (ie. dust or fuzz) which can be cleaned by a vacuum cleaner hose or compressed air can.

This may also be a good time to test and see if the actual button on the case works correctly with the front bezel removed. You will need to follow steps 17 - 18 to reconnect the machine to power. You should see a small metal button in the lower center of the case that should be the power button. It may be somewhat recessed so you may need to press it with a pencil or something. If you have trouble finding this, you can lean the bezel against the chassis and you should be able to locate it by matching where the power button is on the bezel to the chassis.

If the machine starts ok, you will need to let the machine start completely and then do a normal shutdown using the Start button and choosing Shut down or turn off depending on your operating system. After you have verified that everything is OK with that, follow steps 1 - 2 to disconnect from power again.

Now you should be able to follow steps 14-18 to put the side and front back on and connect to power.


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