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My problem is the front panel. how to connect Power Switch and Power LED

How to connect Power Switch and Power LED

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The power switch should be marked the power led most often is not you can play around with the leads but the booklet the MB came with should have a diagram showing you which is + and - if you lost the booklet go to asus website look it up

Posted on Jun 09, 2014

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The led on the front won't light, and I have power connected, but nothing. Is there a reset somewere?


I am assuming you are trying to power up an installed motherboard, based on the category selection. You say that you have power connected. That means that you have connected the 20 (24) pin main connector and the 4 or 8 pin CPU power connector to the motherboard. Have you connected the front panels controls to the motherboard header? There are connections for the power switch, power LED, HDD LED, reset switch (optional). They must be connected in order for the motherboard to start. THe HDD and Power LED connections are polarity-based, so if you hook them upo backwards, their respective LED will not light. The HDD LED plug is usually red and white with the red being on the positive (+) terminal. The Power LED plug is usually green and white with the green wire going to the positive terminal. The power switch and reset switch wires can be connected either way as they are not polarized.

Jul 14, 2015 | Computers & Internet

1 Answer

Motherboard


The front of your computer is the Front Panel

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

What you are asking for is a Front Panel header pinout.

I do not have the exact Front Panel header pinout, for your motherboard.
Tell you what I do have though..........

Looking at the Front Panel header on the Ebay link, for the Winfast 760m02-GX-6LRS; the Front Panel header looks to be below the CMOS battery, and close to the Bottom edge of the motherboard.

(Motherboard installed in computer case)

Black rectangular strip of plastic, with contact pins sticking up.
Also looks to be a GENERAL set-up for all Winfast motherboards.
(COULD be wrong here)

This is what I am referencing off of,

http://www.devhardware.com/c/a/Motherboards/Foxconn-Winfast-NF4SK8AA8EKRS-Motherboard-Review/3/

Go to the third photo down. Here you see the Front Panel wires, connected to the Front Panel header; on the motherboard.
(Below round CMOS battery)

Note that the contact pin on the Bottom row, and all the way to the Right; is NOT being used.
(I'm using a 26 inch HDTV as my primary monitor, so it may be easier for me to see)

Now look at this Front Panel header pinout, for another Winfast motherboard,

http://www.techsupportforum.com/forums/f15/winfast-mobo-front-panel-connection-558456.html

(Scroll down a little)

PWRLED is for the Power On LED (Light)
PWRSW stands for Power On switch
HD-LED stands for the HarDDrive activity LED (Light)
RESET stands for a Reset switch, IF USED.

Note where it has a Positive ( + ) sign, next to the pin for the PWRLED.
This is the pin the + wire from the Power On LED connects to.
It is the SAME for every LED that connects to the Front Panel header.

Let's number the contact pins, to make the explanation easier;
Starting at the Left side, Top row; going towards the Right;
Pins 2, 4, 6 and 8. There is NO Pin 10.

Starting on the Left side, Bottom row; going towards the Right;
Pins 1, 3, 5, 7, and 9.

Pin 2 is for the Positive wire.
Pin 1 is for the Positive wire
If the LED's are dim, (PWRLED, and HDD LED), OR; the LED's do not light up, switch the wires around.

(Pin 9 is N/C.........Not Connected. This is probably a 5 Volt test point, that was used by the factory)

There is a method you can use though, and find out what the individual contact pins are, in the Front Panel header;

Use an LED with two wires

Computer (Power Supply) plugged into power, go along the top row, and touch two pins at a time, with the two wires of the LED.

Example; Pins 2 and 4, as shown in the pinout.
Did the Power Supply come on?
No?

Go to the next two pins. Try again.
When the Power Supply comes on, you naturally know that is the two contact pins; for the Power On switch.
DO NOT touch them again. In fact connect the Power On switch wires.

Power Supply on, computer running;
Now go back along again;
1) LED light blinks?
You have the HarDDrive activity LED, contact pins.
2) LED light stays on?
You have the Power On LED, contact pins.
3) Computer restarts?
Those are the Reset switch, contact pins.

4) Nothing happens?
May be contact pins for a speaker, or contact pins that are not used.
(Speaker is for hearing BIOS Beep Codes.
You have a Piezo buzzer, to the Left of the CMOS battery; for that)

Post back in a Comment, as to the results.

If possible, I would like to ask upon you; to post the Front Panel header pinout; when you find what it is.

That way when a person in the future also has this same problem; the solution will be posted on the internet, for them to find.

For additional questions please post in a Comment.
Regards,
joecoolvette

Apr 30, 2013 | Leadtek Winfast 760m02-gx-6lrs Socket 754...

1 Answer

Inwin pe663t2 front panel connectors do not fit


A power switch only needs 2 contacts as does a power LED so you need to follow the cables back to the switch and also the LED and then connect the ones from the switch to the switch contact and the led cables to the LED contacts on the motherboard.

Mar 05, 2013 | Inwin Development IW-PE663T2.D450TBL...

2 Answers

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...

1 Answer

N68s3+ panel connection


PANEL1: Front Panel Header for Biostar N68S3+ from

http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=506#dl

This 16-pin connector includes Power-on, Reset, HDD LED, Power LED, and speaker connection. It allows user to connect the PC case's front panel switch functions. Pin #1 has a black square on the motherboard and the pins are oriented from 1-8, left to right, bottom row and 9-16, left to right, top row. You will notice that there is no #11 pin.

pin #'s

1-2-3-4 Speaker (1+, 4-)
5-6 hard drive LED (5+, 6-)
7-8 reset switch (7-, 8+)
9-10-11 N/A (not used)

12-13-14 power LED (12+, 14-) ** only if power wire is 3 port connector **
13-14 power LED (13+, 14-) ** only if power wire is 2 port connector **

15-16 power button (15+, 16-)

Did this solve your problem?

Dec 22, 2012 | PC Chips Computers & Internet

1 Answer

How to connect panel 1 of n68s3+


PANEL1: Front Panel Header for Biostar N68S3+ from

http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=506#dl

This 16-pin connector includes Power-on, Reset, HDD LED, Power LED, and speaker connection. It allows user to connect the PC case's front panel switch functions. Pin #1 has a black square on the motherboard and the pins are oriented from 1-8, left to right, bottom row and 9-16, left to right, top row. You will notice that there is no #11 pin.

pin #'s

1-2-3-4 Speaker (1+, 4-)
5-6 hard drive LED (5+, 6-)
7-8 reset switch (7-, 8+)
9-10-11 N/A (not used)

12-13-14 power LED (12+, 14-) ** only if power wire is 3 port connector **
13-14 power LED (13+, 14-) ** only if power wire is 2 port connector **

15-16 power button (15+, 16-)

Did this solve your problem?

Dec 22, 2012 | Biostar N68S3+ AM3 NVIDIA MCP68S Micro ATX...

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

2 Answers

Dont seem to have enough front panel pins for all my case wires


Hi Greeneyedbj,

What kind of I/O connectors are you looking for *********** board sir?

pcsyke_138.jpg

The image above has the following for your I/O connectors.
1. Three usb headers up to 6 additional devices, most casing can support 2-4 pins. 2. Front Audio Connector. 3. Front Panel Connector. Power Sw, Reset Sw, Powed Led, HDD Led

Branded casing has the following I/O connectors.
1. Esata 2. Firewire (Dont use the USB headers, firewire use a different pin-layout) 3. Chassis Intrusion Alarm Header.

Hopefully this information helps.
You can ask for more help.
Thank you for using FixYa.

Sep 23, 2011 | Foxconn A74ML-K Motherboard AMD Socket...

1 Answer

Installed mother to new tower case and pwr sw | hd led | reset | power led connecting to my board is the Intel dq67sw 155 matx motherboard need accurate dir to connect these please help


info found at http://downloadmirror.intel.com/19707/eng/DQ67SW_ProductGuide01_English.pdf
Front Panel Header Pin info for DQ67SW. They should be color coded too. 1 Hard disk LED + orange
2 Power LED+ green
3 Hard disk LED - orange
4 Power LED- green 5 Reset Switch - blue
6 Power switch + red
7 Reset switch + blue 8 Power switch - red
9 Power Out (do not use)
10 No pin
NOTE When connecting individual wires from your chassis front panel to the front panel header, be sure to observe the connection polarity. Positive wires are usually solid color and negative wires are usually white or striped.
There is also an alternative pin header if you have a power wire that uses a 3 pin connector instead of a 2 pin connector. It is the 3 pins just past pin 9, and it should be missing the pin in the middle of the 3 pin block. The pin closest to pin 9 is the power led + and the furthest from pin 9 is the power led -.
if you need clarification, check out page 50 of the manual posted above at intel.com

Aug 23, 2011 | Computers & Internet

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

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