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TRYING TO HOOK UP MU POWER BUTTON NEED TO KNOW

TRYING TO HOOK UP MU POWER BUTTON NEED TO KNOW PINOUT ON THE THREE WIRES PWR LED POWER SW HDD LED

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  • eMachines Master
  • 4,806 Answers

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.
TRYING TO HOOK UP MU  POWER BUTTON   NEED TO KNOW - 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!!

Posted on May 13, 2009

  • Lee Hodgson
    Lee Hodgson May 13, 2009


    Front panel connector

    Connectors

    Just a few examples

    regards


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Front panel connections


I don't find the Front Panel header pinout online, nor do I have an MSI MS-5191 in the shop.

I would suggest using one the LED lights with two wires.
(3-wire is a dual color LED)

There are two rows of pins. Usually the Power On switch, Power On LED, and Speaker; are on the same row.
HarDDrive activity LED, and Reset Switch are on the opposite row.

Speaker has 4-pins designated for it. All the others use 2-pins.
(Unless the PWR ON LED is a dual color jobbie)

Touch two pins next to each other, in the same row; with the 2-wire LED.
Start with finding the Power On switch first.

Usually the top row 1st two pins are Power On LED (Light)
Next in line are the 2 pins for the Power On switch.
Bottom row 1st two pins are usually HarDDrive activity LED (light)
Next 2-pins are usually Reset switch.

May not apply to a motherboard old enough to use a Socket 7 processor socket.
There may be 18 to 20-pins.
Bear in mind that many are not used, and probably 4 are for an internal speaker, for hearing BIOS Beep Codes.
May be two separate Front Panel headers.

Once you find the two contact pins in the Front Panel header, for the Power On switch; I would put the Power On switch wires on.
The small pin connector on the wire/s, will keep you from accidentally touching these two pins again, when the computer is on.

Now you have the two pins for the Power On switch, and the computer is running; then keep touching 2-pins at a time with the LED. (Light Emitting Diode)

LED stays on? You have the Power On LED (Light) pins.
LED blinks? HarDDrive activity LED (light) pins.
Computer restarts? Reset switch pins.

Look for abbreviations near the pins in the Front panel header.

PWR, Pwr, Pwr On, Sw, and SW; are just some of the abbreviations for the Power On switch.

HDD LED, and HDD are two for the HarDDrive activity LED. (Light)
(If it states HDD SW it is the Power On switch. Weird old way of marking)

RST, Reset, and RSW, are for the Reset Switch.
(Reset Button)

If you see 4 pins marked with a bracket ( [ -> Turn so it's horizontal), these are for the internal speaker.

Type MSI front panel connector in your search bar, and look at -> images. See if you can find an image of your MSI Front Panel header pinout.

You can bet MSI carried out that Front Panel header pinout, on other MSI motherboards, besides the MS-5191.

The MSI MS-5191 may have been a motherboard made by MSI, especially for a pre-built computer manufacturer, and not listed on their website as an OEM motherboard.
(Original Equipment Manufacturer)

Won't have the Front Panel header pinout, listed on MSI's support website. (Doesn't)
But you can bet there IS an OEM motherboard made by MSI, that the Front Panel header DOES match.

May be different expansion slots, or motherboard chipset, or whatever; but the same Front Panel header pinout.

Regards,
joecoolvette

Jan 05, 2013 | AMD MicroStar MS-5191 Socket 7 mATX...

2 Answers

I have a hp pavilion a1777c desktop. i had to take it apart to replace hdd and dvd rom and some other parts. i have been trying to get detailed info on where the front power panel wires connect onto the...


There is usually a set of pins on the corner that are labeled get a magnify glass and light up the board take the glass and look down on one of the corners it is usually on the right corner of the bottom of the board at the bottom of the desktop case. You will usually see a series of abbreviations. LED, HDD, PWR, RES or RE the pins are marked. Now on the wires to the power button you will see the same wire abbreviations. Just hook up the HDD wire to the HDD pin the PWR to the PWR button wire and so on. RESET wire is RE or RES etc. Those really are the only three you will need. Not sure of the exact abbreviations. But they are lettered enough for you to match them. The best thing to do is try to download the board specs and get a look at the pins one side is neg and the other is positive it would be to your best interest to find the mother board specs for you mother board since you went all over the internet and could not find the board specs. just match the LED and the others they are marked PWR is the main and HDD is just showing when the HDD is working. The reset is for the button to reset the computer. It is basic and not that complicated really. Thanks for using FixYa! John

Mar 02, 2011 | Computers & Internet

1 Answer

Reconnect the HDD LED, PWR LED, PWR SW, RESET SW


You pretty much need a flashlight and a magnifying glass to have a look see at the header on the motherboard. The pinout is printed on the board in _very_ small print. The LED's are the only ones that require polarity to work. Connecting the wires wrong won't hurt anything...it just won't work the way it is supposed too. A little trial and error may be in order.
Another, more accurate solution, is to go the manufacturer's website for that computer and download the user manual. The pinout will be in the manual, usually under "front panel connections".

Dec 22, 2010 | Computers & Internet

1 Answer

Power Button wire to mother board power led power sw HDD Led . what pin connects to the three wires from power button. Led Power wire to what pins, HDD Led to what pins and power SW to what pins on the...


There are may motherboards, but most have writing on them as to what is suppose to plug where. For example, for the power switch, the lettering might be "Pwr" or "Power" or "Pwr sw". The pins are usually together and should fit the plug on the end of the wire.

Nov 25, 2009 | E-Machines eMachines Desktop PC

1 Answer

Unknown Pin Layout on Motherboard


Here is the pinout. Note key pin 2 missing.
1 2
reset+ O X key
reset- O (gnd) O pwr sw +
pwr led+ O O pwr sw -
pwr led- O (gnd) O hdd led+
-- O O hdd led-
| O O --
| O (gnd) (gnd) O |
n/c -| O O |- n/c
| O O |
-- O (+5v) O --
19 20

Sep 10, 2009 | AOpen EZ65 (ez65white) Barebone

2 Answers

Does anyone know the pin layout for the front panel connector for a EX65-II? (i.e. the UX4SG-1394-II motherboard)


Here is pinout. Pin2 key is missing pin
1 reset+
3 reset- (gnd)
5 pwr led+
7 pwr led- (gnd)
9 n/c
11 n/c
13 n/c (gnd)
15 n/c
17 n/c
19 n/c
2 key (missing pin)
4 pwr sw +
6 pwr sw -
8 hdd led+
10 hdd led-
12 n/c
14 n/c (gnd)
16 n/c
18 n/c
20 n/c (+5v)

n/c = no connection

Aug 03, 2009 | AOpen EZ65 (ez65white) Barebone

2 Answers

I have an 945gzt-m v 1.0 and dont know were the pwr sw wire goes


Yes.
First, let's orient the view of the motherboard, so we are both looking at it the same way.
The processor is at the top middle, and the Front panel header, is to the very bottom right hand corner.
Right next to the motherboard mounting hole.
The Front Panel header goes across the bottom edge of the motherboard, lengthwise.

Looking at the top row of pins on the Front Panel header, No.2 Pin is at the far left. Pins 2, 4, 6, 8 and 10, go across the top.

Looking at the bottom row, No. 1 Pin is at the far left. Pins 1, 3, 5, 7, and 9, go across the bottom.

The power switch wires go to Pins 6 and 8.
The HDD LED wires go to Pins 1 and 3.
The power LED wires go to Pins 2 and 4.

On the power switch wires, the Positive (+) wire goes to Pin 6. Just in case this wire is marked.
(Doesn't really matter which way it goes, because it's a switch!)

On the HDD LED wires, the Positive (+) wires goes to Pin 1.

On the power LED wires, the Positive (+) wire goes to Pin 6.

Apr 15, 2009 | ECS 945GZT-M (V1.0) Motherboard

1 Answer

Front panel connections


You can download the complete user manual in English from the manufacturer's website at this link:)

http://support.asus.com/download/download_item_4.aspx?product=1&model=P4B533&SLanguage=en-us&os=17

The front panel connector pinout is on page 2-33, or page 59 in the PDF file. You should have mor ethan enough information to make all the connections you need.

Jan 02, 2009 | ASUS P4B533 Motherboard

1 Answer

Foxcon Motherboard pinout


Hi bwalker24,
This is a pic of how to connect you're LED & switches.
f0649db.jpg Enjoy!

Mike

Jul 25, 2008 | Foxconn 661M03-G-6EL Motherboard

4 Answers

Need help bigtime


are those all seperate connectors for the button? Or are they all together on one block? Should be something near bottom right hand corner of mobo saying pwr, hdd, sw, snd, led, that kind of thing

Mar 24, 2008 | E-Machines eMachines Desktop PC

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