Question about Compaq (253219-002) Motherboard

2 Answers

Compaq 252608-001 motherboard

I bought a used motherboard with no manual, i'm having some trouble in connecting the power switch cable, power led cable, cpu led cable.
can u help me?
thanks

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  • Anonymous Nov 24, 2008

    I got the same problem, I can't find anything you have written like pwr switch or hddled

×

2 Answers

Its not written on the board...
All that's written on it is the P codes, which are damn hard to read as it is, never mind trying to read anything on it...
Spkr and HDLED, and PWRLED are all marked, but the pwr and reset arent... or if they are, i cant find them

Posted on Jun 07, 2008

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  • Master
  • 652 Answers

Hello sosumo,
see carefully on the board there might be some sign like:

  • HDD-LED
  • PWR SWTCH
  • SPKR
  • RSET
  • PWR LED
These are the points on your board where you have to connect frontpanel connections.

For more details goto HP website and search manual for your product using your board's model no.

Thanks
Iqbal

Posted on Apr 21, 2008

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How to wire front panal


You will need to open the computer case and check that the cables that run from the actual power button to the motherboard are plugged into the proper spot on the motherboard. Sometimes reseating the cable can fix this issue.

I think this is the link to your motherboard documentation: http://www.via.com.tw/download/mainboards/3/4/p4mapro533_r100.pdf

Check the page 2-14 or 2-15 and see if that helps you to identify the actual connection for your power switch.

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1 Answer

Front panel wiring diagram ie power switch reset switch etc


HP Support > Compaq Presario SR5501F > Motherboard Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01237538&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=3740354

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:

Put your mouse cursor after the 1 in c01237541.
Left-click twice.
Make one space with your spacebar.

Type Compaq Presario SR5501F Mobo photo.
(Mobo stands for MOtherBOard)

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.
Left-click on the Zoom In icon at the bottom of the window to enlarge.
(+ sign in a magnifying glass icon)

Wiring Connections to the Motherboard:

A) Front Panel header: (Panel 1)

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.
(Down in the bottom right corner)

On your motherboard, Panel 1 (Front Panel header) is Black in color.
As you can see it is a rectangular block, and is placed vertically.
Has 2 columns of pins.
5 in the left column, 4 in the right column.

The Left column is numbered Odd.
Starting at the Top going down, Pins 1, 3, 5, 7, and 9

The Right column is numbered Evenly.
Starting at the top going down, Pins 2, 4, 6, and 8.

Pins 1 and 3 are for the HarDDrive LED light.
(HDD activity LED)
Pin 1 is for the Positive connection ( + )

Pins 5 and 7 are for the Reset switch.
Pin 7 is for the Positive connection. ( + )

Pin 9 is reserved, and may not be used.

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.
There is No Pin 10.

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

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1 Answer

How can I connect power switch and LED indicators


u need the user manual or see the board there is information on board
c9a0fdf.jpg

9ab1f86.jpg

this are the connector u have to connect this pin to front pannel

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1 Answer

Lookig for a manual for an fic au13 motherboard


Front Panel Block Cable Connections

f_Panel

1 3 5 7 9
. . . . .
. . . .
2 4 6 8

1] HDD-LED (+)
2] Dual Power-LED* (+)
3] HDD-LED (+)
4] Dual Power-LED* (-)
5] Reset Switch
6] Power Switch
7] Reset Switch
8] Power Switch
9] Dual Power-LED* (**)

* Single Color Power-LED 2 or 3 pins:

[.] . .
1 2 3

1]Power-LED (+)
2] GND
3] GND


** Dual Power-LED:
if useing dual power LED,
Green: pin2
Yellow: pin4
otherwise, Pin2 is positive (+) Pin4 is negative (-

For future Reference you can download your manual directly from the manufacturer's website HERE
Or directly from HERE

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2 Answers

Need to find out where the on/off cables hook to a 277977-001 motherboard by compaq


Hi,

Generaly, the little connectors on the printed side will face the bottom of the case. Also, typically, Black is negative, and white/colour is positive (except on the power sw, it doesn't matter). On the motherboard, where the connectors go, there should be some kind of print saying where to plug them in. (IE, POWER SW, would go into PWR, and HDD LED would go into HDLED and POWER LED would go into PWRLED).

b0dcbba.jpg
It may look different than this, but generally the same kind of layout, as you can see, it shows the positions, as well as positive and negative.

Unfortunetely, I can't seem to find a schematic for the Compaq 277977-001 motherboard. I will try and find one, but I hope this helps you out with what you are trying to do...

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Connecting the Front Panel Header

Table 6. Front Panel Header (J9H3)
Pin

Signal
In/Out
Description
Pin
Signal
In/Out
Description
Hard Drive Activity LED
Power LED
1
HD_PWR
Out
Hard disk LED pull-up (330 ω) to +5 V
2
HDR_BLNK_GRN
Out
Front panel green LED
3
HDA#
Out
Hard disk active LED
4
HDR_BLNK_YEL
Out
Front panel yellow LED
Reset Switch
On/Off Switch
5
Ground
Ground
6
SWITCH_ON#
In
Power switch
7
FP_RESET#
In
Reset switch
8
Ground
Ground
9
+5 V
Out
Power
10
N/C
Not connected

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Go back and check the fine cabling that connects LED indicaters to motherborad. There's got to be a small cable you forgot to plug into the board to feed back poer state. Take your time and check everything twice.

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