Power supply buzzes when power turned on

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.

http://www.kitchentablecomputers.com/static.php - rules

Unplug all electronic cords connected to the computer.

At no time during the installation should any cords be connected to the computer.

Remove the screws holding the computer cover case, and remove the cover case.

Locate the computer power supply box, which looks like a large box out of which a bundle of wires run and connects to the power cord jack on the outside of the computer case.

Unplug the power cables from the internal devices connected to it.

Be careful not to damage any of the sensitive control boards or devices inside the computer, and be certain to remember write it down if you need to what devices will need reconnecting to the new power supply when you finish the installation.

Unscrew the power supply from the inside of the computer case and remove it.

Check the original power supply's red voltage switch for the correct setting.

It should read 120 or 240 if you live within the United States.

Confirm this setting as the correct voltage setting for your power outlets.

Make sure your new power supply gets set to the correct voltage setting before you install it.

If it cannot be set to the correct voltage, do not proceed with the installation or you may damage your computer.

Return the new power supply and buy one that is compatible with the voltage requirements.

Install the new power supply, reattach the screws that will hold it in the proper place inside the computer.

Reattach the power cables that come from the new power supply to the devices that were connected to the old power supply.

Make sure all of these connections are firmly in place before you turn the computer back on.

Reattach the computer power cables and all the cords connected to the computer during normal operation, but do not close the computer case yet.

Keep your hands clear of the inside of the computer case as you attach power cords and peripheral devices.

Turn the computer on and observe the performance of the computer without touching anything inside.

Do all the computer fans function normally?

Does the computer operate as well as or better than before?

If you feel that the computer behaves normally and you do not encounter any problems, turn the computer off, remove all the power cords and peripheral cables once more, and close the computer case.

Then reattach the power cords and peripheral cables and begin using the computer.

Check for errors if you encountered any problems starting the computer or if it would not start at all, unplug all the power cords and computer cables connected to the computer and look inside.

Make sure that you connected all the correct power cables inside the computer securely and did not miss any.

If you have confirmed this and the computer still doesn't start or operate normally, call your computer manufacturer or a professional computer repair shop for assistance completing the installation.

Most power supply units will fit

Like everything else in our high-tech world, power supplies come in myriad sizes and shapes
you should check all the electrical connections before you make a decision and make sure they are the same as the ones that you will need to run your computer also

Check the measurements inside the frame to make absolutely sure it will fit,

http://www.youtube.com/watch?v=mKw0bij8CDs

Hope this helps

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.

http://www.kitchentablecomputers.com/static.php - rules

Unplug all electronic cords connected to the computer.

At no time during the installation should any cords be connected to the computer.

Remove the screws holding the computer cover case, and remove the cover case.

Locate the computer power supply box, which looks like a large box out of which a bundle of wires run and connects to the power cord jack on the outside of the computer case.

Unplug the power cables from the internal devices connected to it.

Be careful not to damage any of the sensitive control boards or devices inside the computer, and be certain to remember--write it down if you need to--what devices will need reconnecting to the new power supply when you finish the installation.

Unscrew the power supply from the inside of the computer case and remove it. Check the original power supply's red voltage switch for the correct setting.

It should read 120 or 240 if you live within the United States.

Confirm this setting as the correct voltage setting for your power outlets.

Make sure your new power supply gets set to the correct voltage setting before you install it.

If it cannot be set to the correct voltage, do not proceed with the installation or you may damage your computer.

Return the new power supply and buy one that is compatible with the voltage requirements.

Install the new power supply, reattach the screws that will hold it in the proper place inside the computer.

Reattach the power cables that come from the new power supply to the devices that were connected to the old power supply.

Make sure all of these connections are firmly in place before you turn the computer back on.

Reattach the computer power cables and all the cords connected to the computer during normal operation, but do not close the computer case yet.

Keep your hands clear of the inside of the computer case as you attach power cords and peripheral devices.

Turn the computer on and observe the performance of the computer without touching anything inside.

Do all the computer fans function normally?

Does the computer operate as well as or better than before?

If you feel that the computer behaves normally and you do not encounter any problems, turn the computer off, remove all the power cords and peripheral cables once more, and close the computer case.

Then reattach the power cords and peripheral cables and begin using the computer.

Check for errors if you encountered any problems starting the computer or if it would not start at all, unplug all the power cords and computer cables connected to the computer and look inside.

Make sure that you connected all the correct power cables inside the computer securely and did not miss any.

If you have confirmed this and the computer still doesn't start or operate normally, call your computer manufacturer or a professional computer repair shop for assistance completing the installation

http://www.youtube.com/watch?v=xvClS_M-09o&feature=watch_response_rev

watch video

hope this helps

Open the case. Disconnect all cables from power supply. Unscrew the power supply. Remove it from the case. Install the new one. Screw it. Connect all needed cables. Close your case. It's done. Turn on your computer and enjoy.

Bad Power Supply.
Weak voltage power rail.

The green light at the rear is a Diagnostic LED light, now.
The flashing indicates a bad Power Supply.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&tmp_task=solveCategory&cc=us&dlc=en&lang=en&lc=en&product=3436818

The type of Power Supply used, is one that is used by the majority of desktop computers.
An ATX.

The ATX form factor for a Power Supply's case, is approximately 6 inches Wide, 5-1/2 inches Long, and 3-1/2 inches Tall. (6.00W x 5.5 L x 3.5 H)

The ATX form factor also denotes what power cables are used.

This page on HP Support shows an illustration, and a photo, of the motherboard used in a Pavilion a6110n desktop computer,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01080282&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3436818

{Photo is automatically shown. Go down towards the bottom of the page, and left-click on the + sign to the left of - Motherboard Layout, to see the illustration }

This is an example of an economical, decent ATX power supply, that will replace the one that is installed,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1389575&CatId=1078

Has the power cables needed;

A) 24-pin ATX main power cable
{Example of a 24-pin ATX main power cable,

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

Color doesn't matter.

Observe the photos on the left, and middle.
The 24-pin ATX main power cable, shown in the middle photo, plugs into it's respective connector on the motherboard, shown in the left photo.

Looking at the photo to the right you'll see a Lock in the middle.
This rectangular piece of plastic locks onto a tab, (Protrusion), on the female motherboard connector.

Operates in the same fashion as a see-saw on a playground. The Top, which is closest to the wires going into the connector, is squeezed in. This brings the hooked end out away from the taq, on the female motherboard connector.

Squeeze the Lock in, while gently rocking the male power cable connector side to side, and lifting up. Hold onto the Connector, Not the wires when removing a cable. (Power cable, or otherwise)

B) 4-pin ATX +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

C) SATA power cable:
2 of them. One for the SATA harddrive, one for the optical drive. (DVD drive)

Scroll to the top of the page in the above link. Click on the photo with SATA power cable under it.

E) 4-pin standard Peripheral power cable:
Go back to the top of the page, click on 4-pin peripheral power cable.
May be used to provide power to a computer case fan.

F) 4-pin small Peripheral power cable:
On the page it's listed as Floppy drive power cable. Used to provide power for a Floppy Drive.
Is used now to provide power to the card reader.

More to follow in a Comment.

Regards,
joecoolvette

Hi! I was able to see that you've got a wireless printer. If you need to connect this to your router, this works like connecting a laptop wirelessly. First, you need to know your wireless name (SSID) and your password (WEP/WPA key). In case that you did not configure your SSID and password, it could be found on your router's sticker. If you were able to configure the two, then you just need to enter it when your wireless printer would ask for these info. If you needed help in configuring your router, I have here a page that you can follow just in case. Please visit http://www.columbia.edu/acis/networks/aptnet/linksys/index.html. This would help you on how you can set-up your router. In case this won't work, you may need to remove the printer's driver from your computer and reinstall it.Try to print a document via USB, just to make sure that it's working, then you may proceed in reconnecting it wirelessly.

It needs a new power supply unit (PSU). And, it absolutely won't run without that 4 pin connector. Any standard ATX PSU of at least 250 watts will do. But, Dell usually uses a backward configured power supply so you'll have to purchase theirs. If you have a Dremel with a cut-off wheel, or other means of modifying the case, you can use a standard PSU. If it needs the cut-out, you'll see what I mean when you get the new one in hand.

Either your web-browser has "cached" the web-page previously delivered by the TILGIN,
or your computer is still connected to the TILGIN.

In the former case, "reload" the web-page.
In the latter case, turn off the TILGIN router, and try again to connect to the ZYXEL router.
Also, check that your network-cables are correctly connected to one of the LAN ports on the ZYXEL router.

Hi, mtmj8,

Can you tell whether the buzzing sound is coming from the power supply fan, the disk drive, or maybe an internal fan? I can't imagin it's the power supply fan, as the whole system would likely just cut out.

If it's an internal fan (CPU fan of graphics card), the system will come up to some random point before a component overheats, and usually the device will cut out in order to protect itself. You may be lucky and simply be able to replace the errant fan, or you may have to replace the component itself. Only if you feel confident enough, you may try to open the case and see if you can tell better which component is failing; take all precautions when operating a system with the case opened, and ensure that you do not touch any internal parts even while the power is switched off, as power supplies can retain a charge even when switched off and unplugged from the power supply.

If the buzzing sounds a bit "clunky", it may be your hard drive that's failing, in which case, the prospects for recovery are limited - you will probably have to replace it and reinstall the operating system and any software you have.

Peter.

If you no longer have the manual for you're Intel D815EEA motherboard, open the link provided and download it; http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17793&ProdId=385&lang=eng
You will also need Adobe reader installed to view the manual; http://www.adobe.com/products/reader/
Read over pages 65 to 68.
Once completed turn to page 68 Figure 23. Front Panel connectors. Figure 23 shows two views.
View - (left figure), shows J9C1 as you look down at the front panel pins. The right figure will not be needed. Connect each jumper or each pair as shown.
Wire colors are important and do vary from case to case. The common color of each pair will most likely be used for negative. Wire colors such as blue, light blue, green, light green, red and light red are commonly used as positive.
Pin 1 will be positive and pin 3 will be negative. This is letter - C. Hard drive activity LED.
Pin 2 is positive and pin 4 is negative. Case power LED, and so forth.
As mentioned on page 65, the case front panel pins use 5 volts DC. If you make a mistake and place a jumper backwards (No LED light), just power off the switch on the back of the power supply and correct the jumper by turning it 180 deg. If you’re case’s LEDs do not light up than you will need to connect letter G and letter H. The electronic circuits under the motherboard should supply all 16 motherboard pins with the 5 volt DC and ground needed.

Cheers'
Mike

Sounds like an issue in your power supply. Try a good second hand supply or, if you have to purchase a new one, get a new case with a supply and install the guts of your PC into that as Dell power supplies are very expensive (if they are available at all for your model). Swapping everything into a new case is a pain I know but it may be a lot cheaper then a dell supply. You can also have your supply tested by a professional. Don't be tempted to open the supply and fix it your self.. Switchmode supplies are more then happy to provide all the power needed to turn you into a sticky mass on the floor!!! and the surge capacitors can hold a formidable charge for several hours which really stings when it bites you !!!