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Compaq Power Led and Speakers connectors

Can you still help me?

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  • harp4u Nov 15, 2008

    I already posted the problem regarding Compaq Power Led and Speakers connectors. I only could connect the Power Swithc and HDD. You gave me a link to visit and see some pics that show connectors on the Motherboard. However, I followed the pics and still can't figure out the Speakers and Power Led.

    I am not a geek. I really need someone that can guide me with this cables.

    I appreciate your time and help, thanks.

  • harp4u Nov 15, 2008

    The Compaq motherboard model is 06C0h, Pentium 3, Socket 370 FC-PGA, Compaq 686C3. I'm using the pc right now, therefore, I need to turn on/off in order to follow your suggestions. I been working since last night (Thursday) with a magnifier but the MB does not have any labels written on the panel. There are only numbers with letters: FB3, C46, C44, C45, FB3, etc.

    Hope you can find a pic of the same model, thanks.

  • harp4u Nov 15, 2008

    Thank you very much for taking the time in helping.

    God bless!

  • harp4u Nov 15, 2008

    Hi, I just sent you another comment asking to send me those document to my e-mail.

    Thanks again.

  • JDTec
    JDTec May 11, 2010

    Yes in what issue?


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Ok on the front panel pin header , you should see 2 pins labeled SPK for the speaker and 2 pins labeled pw led. And also you should see 2 pins for the reset connector. Use a flashlight and /or a magnify glass, the letter may be faint.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

Posted on Nov 15, 2008

  • 2 more comments 
  • JDTec
    JDTec Nov 15, 2008

    If you still have problems, tell me what model is your PC and I will find a picture for you.

  • JDTec
    JDTec Nov 15, 2008

    Here is the documentation, you may have to use your printer to enlarge it.

  • JDTec
    JDTec Nov 15, 2008

    If you have problems viewing it, I can email them to you.

  • JDTec
    JDTec Nov 15, 2008

    My pleasure Hope I can help again in the future.


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May 02, 2011 | Compaq Presario SR5710Y PC Desktop

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I would like to see an inside wiring diagram to see if I plugged something in wrong or not

If this problem is in direct relation to a Compaq Presario SR5501F desktop computer;

HP Support > Compaq Presario SR5501F > Motherboard Specifications,

The motherboard is made by ECS for HP/Compaq
ECS model number is MCP61PM-HM
HP/Compaq's name is Iris 8.

There is no wiring diagram per se to give you.
I'll have to detail the wiring connections step by step for you.
This may be a little lengthy.

On the link above you are looking at a photo of your motherboard.
There is also an illustration available.
I would like you to copy, and save them both.

Using this method you will be able to enlarge them for further clarity, of the connections to the motherboard.

Right-click on the motherboard photo. Left-click on Save Image As, in the list.
In the Save Image window that comes up, you will see the heading File name:
To the right of File name: will be c01237541.

Unless you want to search for c01237541 you may wish to do this:

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Type Compaq Presario SR5501F Mobo photo.
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You want this photo to go to your My Pictures folder.
(Windows XP. Different for Vista)
At the top of the Save Image window is the heading - Save in:
In the box to the right you should see - My Pictures

If you do Not you will have to change the destination.

Left-click on the blue down arrow to the right of the box.
In the list, left-click on - My Documents, then left-click on - My Pictures.
Now go to the bottom right of the Save Image window, and left-click on Save.

In the link, scrolling down you will see the heading - Motherboard layout
Left-click on the + sign next to Motherboard layout.
Copy and save it as you did for the motherboard photo.

In the File name: box type - Compaq Presario SR5501F Mobo Illustration.

Now all you have to do is go to your My Pictures folder (Start>My Pictures), and double-click on the photo, or illustration.
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The Front Panel, is the plastic front of your computer where the Power On button, HarDDrive LED light, and Power On LED light is located.

The Front Panel header is the connections, or pins, on the motherboard, where the cables (Wires) go to from the Front Panel.

On the motherboard illustration it is marked as Panel 1.
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On your motherboard, Panel 1 (Front Panel header) is Black in color.
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The Right column is numbered Evenly.
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Pins 1 and 3 are for the HarDDrive LED light.
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Pins 5 and 7 are for the Reset switch.
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Pins 2 and 4 are for the Message LED light. (LED = Light Emitting Diode)
Power On LED light.

Pins 6 and 8 are for the Power On switch.
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If the cables (Wires) are not marked coming from the Front Panel, you will have to remove the Front Panel, and trace where they go.

You will be able to physically see where wires go to the Power On switch, Power On LED light, HarDDrive activity LED light, and so on.

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C) 4-pin ATX +12 Volt power cable.
Looks like this,

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This is what a flat ribbon IDE data interface cable looks like,

(You can click on the photo to enlarge. You can enlarge twice)

G) The Floppy Disk drive, (If your computer came with one), plugs into the FDD connector shown on the motherboard illustration.
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Hi there
The front panel connectors are mainly,
  • harddisk activity connector
  • power switch connector
  • reset switch connector
  • power LED connector
  • speakers connector
  • USB connector
Harddisk activity connector
This normally comes red in colour and is labeled as HDD-LED
Power switch connector
This comes green in colour and is labeled as POWER-SW
Reset switch connector
This usually comes grey in colour and is labeled as RST-SW
Power LED connector
This is usually green in colour and is labled as PWR-LED
Speakers connector
This speaker will give different beep sounds during boot to tell the user if there is any errors. It occupies 4 pins, however only 2 is important for the function. Be sure to connect the red coloured cable to the positive polarity and the black to the negative.
front_panel_connectors.jpg Front panel connectors pins on the motherboard
front_panel.jpg Front panel connectors from the casing

Good luck and thanks for using FixYa!!

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