Question about Intel Motherboard

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Hp compaq d240 motherboard without agp

I cannot find the correct way for the on/off switch ,reset switch and led lights to be connected to the motherboard .

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Google the motherboard manual and download it..i believe its a Pdf in format.

Posted on Feb 05, 2008

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HP Compaq 6730S laptop i scompletely dead. Any Help?


When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

Jan 25, 2013 | HP Compaq 6730s Notebook

1 Answer

How to re-wire a Compaq Presario SR2150NX Case power Switch


The plastic front of your desktop computer is the Front Panel.

The area of contact pins on the motherboard, that the wires from the Front Panel go to, is the Front Panel header.

F_PANEL_1

The Front Panel header contains connections for the Power On switch, Power On LED light, HarDDrive activity LED light, and so on.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00864922&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3339274

(Look at the motherboard photo. The Front Panel header is at the bottom right. Scroll down for the motherboard illustration )

There are 9 contact pins.
4 across the Top row, and 5 across the Bottom row.

The four pins across the Top row are numbered EVEN.

From the Left side going towards the Right side;
Pins 2, 4, 6, and 8. There is NO pin 10, just a blank spot.

The five pins across the Bottom row are numbered ODD.
Pins 1, 3, 5, 7, and 9.

A) Pins 2 and 4 are for the Power On switch

B) Pins 6 and 8 are for the Power On LED

(LED is dim when the computer is on? Switch the wires around )

C) Pins 1 and 3 are for the HarDDrive activity LED

(LED is dim when the harddrive is operating? Switch the wires around)

D) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.

How to know which wires are for the Power On switch, Power On LED, and HDD LED?

Follow the wires into the Front Panel. Remove the Front Panel, and follow them.
(Need guidance removing the Front Panel post in a Comment )

For additional questions please post in a Comment.

Regards,
joecoolvette

May 02, 2012 | HP Compaq Presario SR2150NX PC Desktop

1 Answer

I have motherboard Compaq #277498-001 and can't find power sw


Not sure of your particular MB, but most always the switch is a pair of pins in an array where the front panel LEDs and reset and power switch are.
This array of pins is almost always at the lower right hand side of MB. Assume the components side is facing you and the expansion slots are at your left hand, (where you add extra cards like video etc). then look at the lower right side or bottom edge, mostly right at the edge of the board. Should be an a double row of pins, at least 8 maybe up to 12. Look real close next to these and you may see print indicating which pair do what. PS = power switch. RS = reset, HD = Hard drive LED PLED = power led light.Spk internal beep speaker etc. (Note LEDs require correct polarity to work) Sometimes no print there.. Then you need the manual to decipher pin pairs. Or experiment. All you need to do is make the connection momentarily (like push button) with a small screw driver tip to start it, while looking for correct pins.
If no power on check your power supply connections on the MB. Or suspect either MB or Power supply issue.

Mar 24, 2012 | Compaq ( 277498-001) Motherboard

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

Sep 21, 2011 | HP Compaq d530 SFF PC Desktop

2 Answers

How to connect my led lights[that is the red nd green light ] with my 865 chipset''......where r those pins on the motherboard ??


in *********** board where the reset & power botton is connected same place you can find HDD LED for Harddisk and Power LED for power, please be carefull with the sign designation about (+) and (-) it is indicated in the board and pin.

Jun 12, 2009 | EliteGroup ECS 865PE-A7 Intel 865PE...

2 Answers

Compaq 252608-001 motherboard


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

Apr 21, 2008 | Compaq (253219-002) Motherboard

4 Answers

Pin alignment on motherboard for led switches


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

Apr 01, 2008 | Compaq (283983-001) Motherboard

5 Answers

Compaq for Evo D300 Motherboard


The manual can be found here. There is a numbered diagram inside. http://www.eserviceinfo.com/downloadsm/5105/Compaq_Evo%20300-500.html Hack

Jul 09, 2007 | Compaq (281946-001) for Evo D300...

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