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Installed new power supply on hp m470n cannot remember which wires go where HELP

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  • HP Master
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The HP Media Center M470n uses an Asus P4SD-LA motherboard. The HP 'Oxford' version.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00063272&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=392513

I would like you to scroll down to the bottom of the page, for the motherboard illustration, and photo.

These views are of the motherboard without any hardware installed, (NO Processor Ram Memory, graphics card, { IF used}, etc.)

1) Plug in the 20-pin ATX main power cable. Only plugs in one direction. Observe the Lock on the side.

Typical 20-pin ATX main power cable, and it's respective connector on the motherboard,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

In the illustration the 20-pin ATX main power cable plugs into > ATX Power Connector, shown on the Right side of the motherboard.

In the photo it is the vertical whitish connector, with 20 socket holes. 10 in each column. To the Right of the Ram Memory slots.


2) Plug in the 4-pin ATX +12 Volt power cable.

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

NOTE that there are two Yellow wires, and two Black wires. (Yellow is a 12 volt wire. Black is a Ground wire)

In the motherboard illustration, this power cable plugs into the Left side of the motherboard.
To the Left of the diamond shape with, Intel "Breeds Hill" i848p chipset.
It plugs into > ATX12V1

In the motherboard photo, it is the small square whitish connector, with 4 socket holes.
This connector also only plugs in one way. Observe the Lock.


3) Plug in the SATA power cable to the Harddrive, (Only plugs in, in one direction)

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

The SATA power cable has 15 pins. The SATA data cable has 7 pins.

NOTE*
IF, your SATA harddrive has a provision to be able to plug in a SATA power cable, AND a 4-pin Peripheral power cable, ONLY USE THE SATA POWER CABLE!

It will burn up the SATA harddrive if you use both cables.
In some instances the SATA harddrive will run for a while, then one day POOF!

4) Plug the 4-pin standard Peripheral power cable/s into the optical drive/s. (CD/DVD drive/s)

Note the two rounded corners on the cable's connector. This is to line the connector up properly.

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

(Misnomered as Molex)


Just in case;

The computer case fan plugs into CHA_FAN1 on the motherboard illustration. This connector is to the left of ATX 12V1.

The SATA data cable for the SATA harddrive plugs into one of the two SATA header, (Connectors), down in the bottom Right, of the motherboard illustration.
P31, or P30.
Doesn't matter which one you plug into as BIOS will find it.

The plastic front panel of the computer is the Bezel for HP. When referring to it with a tech, it is the Front Panel.

The area of pins sticking up on the motherboard, that the cables, (Wires) go to from the Front Panel, is the Front Panel header.

Orientation of where the cables (Wires) go, is a Pinout.

If you need the pinout of the Front Panel header, let me know in a Comment.
I have one for the Asus P4SD-LA Yale motherboard, and I think it's the same as the Oxford.

Posted on Nov 13, 2010

  • joecoolvette
    joecoolvette Nov 13, 2010

    The AGP graphics expansion slot can use either AGP 4X, or 8X graphics cards.

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  • Master
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The large power connector goes onto your motherboard--20 or 24 pin--in the socket provided. It can only go in one way.
There is probably a second connector, a 4-pin--that will plug into the motherboard near the CPU. It, too, can go in only one way.
Other than that, you just have to hook up the power to the hard drive and CD/DVD.

If you have a high-performance video card that has a power connection, it's probably a 6-pin connector.
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Posted on Nov 13, 2010

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Replace power jack


Power supply failures in a HP computer can cause your computer to fail to turn on, to operate erratically or cause certain system components not function.

However, the power supply is one of the easiest parts of a computer to replace.
You don't need any special skills to do this.

If you're nervous about opening up your computer case and potentially damaging a computer component, don't be.

All you are really doing is plugging in power supply cables after securing the power supply.
The process should take 10 minutes maximum.

Shut down your HP computer.
Disconnect the power cable from the power supply on the back of your computer.

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.
http://www.kitchentablecomputers.com/static.php - rules
Only work inside the computer case when the power has been switched off and disconnected. Never open the power source.

Some of the below steps recommend removing physical parts within the computer.
While in the computer it is highly recommend that you be aware of ESD and its potential hazards.


Unscrew the side panel from the back of the case and slide it off.
Newer HP computers may have a case door you can open for access or have access buttons to press.


Look at the back of your HP computer case for a set of four screws near the top of the case. Remove these screws and set them aside.
Carefully slide your power supply out of the mounting brackets and set it on a clean working surface.
Do not disconnect any of the power connectors yet.

Slide your replacement HP power supply into the case and use the mounting screws to attach it to the chassis.


Use your old HP power supply as a guide to connect your new power supply to all the computer components.

Switch the power cables from each device from the old supply to the new supply so you don't miss connecting any cables.

Check that all the components have power cables inserted and the old HP power supply is completely disconnected from the system.

Close the HP computer case and plug the power cable into the new HP power supply.
http://www.fonerbooks.com/r_power.htm

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How to install power supply


get replacement first

turn off tower

remove all wires and connections

find case screws on back remove and put in a careful place

ground your hands with a strap to chassis

find power supply and trace power cables to board (2 or 3)

remove power cables

remove screws from power supply freeing from chassis

replace with new supply

plug in cables in same place as old one

close chassis

hook up wires to computer

count down from 10(just kidding)

maybe you get lucky

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Manual for Hp media center model Pcm470n


Hello,

Here is the website for support for your system:

M470n Support

There are links for manuals, drivers and more.

You might want to save this site in your Favorites for future use.

Thanks for using Fixya. Please take a moment to rate this solution.

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How do I replace the power supply?


To install a new power supply, you don't have to send your computer to a specialist; you can install one yourself.
Before You Purchase. You can buy a new power supply from your computer's manufacturer, a computer store, or an independent manufacturer, but first you should examine your current power supply. Check to see if your power supply is AT (Advanced Technology) or ATX (Advanced Technology Extended) style. Your power supply should be labeled AT or ATX, and in the same area, you should see the output voltage in watts (for instance, ATX-250W). Be sure to buy a new power supply with the same or higher wattage as your old power supply. The higher the wattage, the more energy your power supply will provide to your computer. If you're adding additional components to your PC, you should purchase a higher wattage power supply. Furthermore, measure the dimensions of your old power supply, and make sure these measurements are the same as the new power supply you're going to purchase.

Get Started. To replace your old power supply, you'll need a Phillips or flathead screwdriver, a well-lit, low-static area (avoid carpeted areas), small containers (to hold screws or loose parts), and a pen and paper.

Turn off your computer and all the peripherals (such as your monitor, printer, modem, and scanner). Unplug your PC and all the peripherals from their outlets. After that, unplug all peripherals from the back of the computer. Move to a well-lit, static-free area, such as a tile floor or a kitchen table. Remove the computer case or panels to expose the interior of your PC. The power supply is enclosed in a metal box located in the corner of your computer case.

Before you disconnect any wires, be sure to sketch and/or note where and how each of the wires is connected. These notes will help you remember where to plug things in when you install your new power supply. In addition, when you remove any components from your PC, you should put any loose screws or loose parts in separate, labeled containers to keep them safe and organized.

Find the bundle of wires that come out of your power supply. These wires connect to your motherboard and various drives. Follow the wires to their white, plastic connectors and pull each connector until it is free (never pull directly on the wires). Remove all wires from their internal components. You may have to disconnect the on/off switch if the switch is not built onto the power supply. Occasionally, a large bracket secures a computer's power supply. To remove the bracket, loosen the screws and take it out. Now, remove the four screws closest to the outside edge of the computer case. Don't remove the screws that hold in the power supply fan. Carefully lift out your power supply (don't be afraid to pull it out with a little force).

To install your new power supply, you can reverse the actions you took to remove your old one. Put the new power supply in the same place as the old unit, tighten the perimeter screws into place, replace the bracket, and reconnect the on/off switch. Reconnect the wires by following your sketches and/or notes in reverse. If you have any loose wires, bind them together with a twist-tie. Make sure the voltage switch visible on the power supply is set at 120V (120 volts, common in the United States). Replace your computer case/panels. Connect all peripherals and the power cord to the back of your PC. Plug your PC and the peripherals into their respective outlets.

Start It Up. Turn on your computer and monitor. You should hear the normal sounds of a computer powering up, such as the fan and hard drive spinning. If your PC doesn't turn on or if any components in your system don't function, you should turn off your PC and unplug it. Remove the case and check to make sure all the wires are properly connected. Replace the case, plug in your computer, and turn it back on. If you continue to experience problems, contact the power supply's manufacturer or your PC's manufacturer.

Or you can see this :

http://www.hardwaresecrets.com/article/362

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