Cannot get new mobo to boot up. I believe I have crossed wires some where JFP1 or JFP2. Help.

The mainboard provides one front panel connector for electrical connec-tion to the front panel switches and LEDs. Users can choose either the JFP1 or the JFP2 depending on their needs.The difference between JFP1 & JFP2 is that JFP2 is compliant with Intel PIn

MSI Support > K9N6PGM2-V motherboard > Main Support page,

http://www.msi.com/product/mb/K9N6PGM2-V.html

Hover your mouse cursor on the Download tab.
(Overview / Specification / Download / Support / etc)

In the drop down list click on - Manual

Now click on the blue -> M7309V1.2.zip
Click on the country name nearest yours.

A small window will come up on the right -
Opening M7309v1.2.zip

Make SURE there is a Green dot in the small circle, to the left of Save File.
If not left-click once in the small empty circle, to the left of Save File

Now go below in the window, and click on OK.
A small window will come up on the left. Allow the file to download all the way.
Now DOUBLE-click right on the file name.

In the next small window go to the left side, and click on -
Extract all files
At the bottom of the next three small windows, left-click on
Next, Next, and Finish.

In the last small window go to the file name next to the red Adobe PDF icon, and DOUBLE-click on it.
7309v1.2(G52-73091X3)

There is your motherboard manual in PDF file form.

( Plus + icon increases the view size when you click on it.
Minus - icon decreases the view size.

When I refer to a page number it will be for the PDF reader, and not the actual manual's page )

Go to Page 8.
Motherboard Layout

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.

JFP1 is the Front Panel header.
JFP2 is an additional header. To be discussed after JFP1.

JFP1 is on the Right/Bottom corner. It is placed Vertically.
(Parallel to the right bottom edge of the motherboard)

Above it's left corner is JUSB2. (Front Panel USB header 2)
Above JUSB2 is the SATA2 connector. To the left of the SATA2 connector is the SATA1 connector.
To the left of the SATA1 connector is the CMOS battery.

The contact pins are arranged in two columns.
4 pins on the Left side, 5 pins on the Right side.

Go to Page 14. JFP1 pinout, and JFP2 pinout, is at the Bottom of the page.

JFP1:
Starting on the Bottom going towards the Top, Right side;
Pins 1, 3, 5, 7, and 9

Starting at the Bottom going towards the Top, Left side'
Pins 2, 4, 6, and 8.

A) Pins 1 and 3 are for the HarDDrive activity LED. (Light)
Pin 1 is for the Positive ( + ) wire.
IF the HDD LED is dim when the harddrive is active, switch the wires around.

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

C) Pin 9 is N/C. Not Connected. (Probably 5 Volts positive, and used by the factory only)

D) Pins 2 and 4 are for the Power On LED. (Light)
Pin 2 is for the Positive ( + ) wire.
IF the PWR ON LED is dim when the computer is on, switch the wires around.

E) Pins 6 and 8 are for the Power On switch.

JFP2:
Below JFP1 is a header that is placed Horizontally. It is parallel to the Bottom edge of the motherboard. This header with 13 pins in it, is the JLPC1 header.
(Starting on left side at the Top row; 4 pins, no pin, 2 pins.
Starting on the left side at the Bottom row; 7 pins)

To the left of the JLPC1 header is the JFP2 header.
4 pins across the Top row, 3 pins across the Bottom row.

The top 4 pins across the top are for an internal speaker. Used to hear BIOS Beep Codes.
Starting on the Left side coming towards the Right, top row;
Pins 2, 4, 6, and 8.
No indication of polarity.
Believe pin 2 is for the Positive wire, and pin 8 is for the Negative wire.

Starting on the Left side coming towards the Right, Bottom row:
Pins 1, 3, and 5.

These pins are ONLY used for a Power On LED light, that has 3 wires.
Used for a dual color Power On LED.
(One example; Green Turbo, Yellow normal)

The rest of the pinouts are listed in the manual.

Have additional questions? Post in a Comment.
I also downloaded the manual.

Regards,
joecoolvette

http://www.msi.com/product/mb/760GM-P21--FX-.html

Hover your mouse cursor on the Download tab.
(Overview/ Specification/ Download/ Support/ Where to Buy)

In the drop down list click on - Manual
On this page under the subheading Download, click on the blue -
M7641v3.0.zip
On the next page click on the country name nearest yours.

Motherboard User Manual.

This is a Zip file. If you do not know how to open a Zip file, please state in a Comment, and I will guide you.

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.

The Front Panel header is divided into two headers on the motherboard.
This you have stated, JFP1 and JFP2.
(Junction Front Panel 1, and Junction Front Panel 2)

JFP1 is for the Power On switch, HarDDrive activity LED, Reset Switch, and a two wire Power On LED.

JFP2 is for an internal speaker/buzzer, and a three wire Power On LED. (Dual color)

JFP1:
4 pins across the Top row.
5 pins across the Bottom row.

The pins on the Top row are numbered EVEN.
The pins on the Bottom row are numbered ODD.

Starting on the LEFT side coming across to the Right side, Top row;
Pins 2, 4, 6, and 8. There is NO pin 10.

Starting on the LEFT side coming across to the Right, Bottom row;
Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the HarDDrive activity LED.
Pin 1 is for the Positive ( + ) wire.
If the HDD LED is dim when the Harddrive is active, switch the wires around.

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

C) Pin 9 is N/C. Not Connected. It is reserved for the factory to use.

D) Pins 2 and 4 are for a two wire Power On LED.
Pin 2 is for the Positive ( + ) wire.
If the PWR ON LED is dim when the computer is on, switch the wires around.

E) Pins 6 and 8 are for the Power On switch.
F) There is NO pin 10.

JFP2:
4 pins across the Top row.
3 pins across the Bottom row.

The pins on the Top row are numbered EVEN.
The pins on the Bottom row are numbered ODD.

Starting on the LEFT side coming across to the Right, Top row;
Pins 2, 4, 6, and 8.

Starting on the LEFT side coming across to the Right, Bottom row;
Pins 1, 3, and 5. There is NO pin 7.

A) Pins 1, 3 and 5 are for a dual color Power On LED.

Pin 1 is for the Negative ( - ) wire.
Pin 2 is for a Yellow, or Orange part of the dual color Power On LED.
Pin 3 is for a Green part of a dual color Power On LED.

B) Pins 2, 4, 6, and 8, are for a speaker/buzzer.

Pin 2 is for the Negative ( - ) wire of a speaker.
Pin 8 is for the Positive ( + ) wire of a speaker.

Pin 4 is for the Positive ( + ) wire of a buzzer.
Pin 6 is for the Negative ( - ) wire of a buzzer.

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

Motherboard installed in computer case;
Processor to the Top, 3 Ram Memory slots to the Right, 5 white PCI slots to the Bottom;

Down in the Bottom/Right corner, is JFP1, and JFP2.

The Front Panel header is JFP1. (Junction Front Panel 1)
The header with two rows of pins, and is positioned Horizontal. It is parallel to the bottom of the motherboard.

(The other Front Panel header is JFP2. It is positioned Vertical, and is above JFP1. You may be using it also. Read on)

There are two rows of pins for JFP1.
5 across the Top, 4 across the Bottom.

The pins on the Top row are numbered ODD.
The pins on the Bottom row are numbered EVEN.

Top row, starting from the Right side, going towards the Left;
Pins 1, 3, 5, 7, and 9.

Bottom row, starting from the Right side, going towards the Left;
Pins 2, 4, 6, and 8. There is NO pin 10.

A) Pins 1 and 3 are for the HarDDrive activity LED light.
Pin 1 is for the Positive ( + ) wire.
If the Harddrive activity LED light is dim, when the harddrive is active, switch the wires around.

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

C) Pin 9 is N/C. Not Connected. It is/was for the factory.

D) Pins 2 and 4 are for the Power On LED light. A Power On LED light that has 2 wires.
Pin 2 is for the Positive ( + ) wire.
If the Power On LED is dim when the computer is on, switch the wires around.

E) Pins 6 and 8 are for the Power On switch.

Looking at JFP2. (Junction Front Panel 2)
Vertical with two columns of pins.
3 on the Right side, 4 on the Left side.

The Right side is numbered EVEN.
The Left side is numbered ODD.

Starting at the Bottom on the Right side, going Up;
Pins 1, 3, and 5.
Starting at the Bottom on the Left side, going Up:
Pins 2, 4, 6, and 8.

A) Pins 1, 3, and 5, are for a Power On LED light, that has 3 wires.
Pin 1 is for the Positive wire. (Dual color LED )

B) Pins 2, 4, 6, and 8 are for a Speaker. The speaker for BIOS Beep Codes.
Pin 2 is for the Positive ( + ) wire.
Pin 8 is for the Negative ( - ) wire.

Regards,
joecoolvette

They should be etched on the motherboard. Also the MB manual should note how they are connected. The connector will have a triangle or arrow head on one side. That is the positive wire. If you get them backwards the leds won't work right if at all.

The eMachines W3410 uses an MSI ms-7145 motherboard.
Also known as RS480M

This is MSI Support, and the download page for the motherboard manual, for the RS480M motherboard,

http://www.msi.com/index.php?func=proddesc&maincat_no=1&prod_no=204

To the Right of the photo of the motherboard, you will see a gray bar with, BIOS, Driver, Utility, Manual, and RSS.
Left-click on Manual.

On the next page look under the heading to the right - Document.
Left-click on the blue - E7145v2.1.zip

On the final page click on the country nearest yours.
A small window will come up with the heading -
Opening E7145v2.1.zip

Be sure that Save File has a green dot, in the empty circle to the left.
[If not, Left-click on the empty circle to the left of Save File]
Now click on OK, below.

Where this file will go.
If you Do Not, have your documents set to save to your My Documents folder (Documents for Vista), the file will go to your desktop screen.

In either place Double-click on the file. Now go up to the left, and click on - Extract All Files.
Click on Next, and Finish.

You will now see a PDF icon. Double-click on this icon.
Go to Page 15.

The plastic panel on the front of your computer is the Front Panel.
This is where the Power On switch, Power On LED, and HDD LED are located.

The connector on the motherboard where the cables (Wires) attach to, is the Front Panel header.
The front panel header is a series of pins, sticking up out of the motherboard.

The MSI ms-7145 motherboard, (RS480M) has the Front Panel header separated into two headers.

JFP1, and JFP2

Looking at the motherboard with the Processor socket to the top, and the Ram Memory slots to the right, the JFP1, and JFP2 front panel headers are located at the extreme bottom Right, of the motherboard.

[Use the Zoom In feature (+ at top of file) to enlarge the motherboard layout on Page 15]

Now go to Page 38.
Page 38 shows the connections for the JFP1, and JFP2 headers.

The JFP1 header, and the JFP2 header, consists of two rows of pins in a horizontal column.
The pins are arranged parallel, to the bottom edge of the motherboard.

Right above the JFP1, and JFP2 header may be three pins, with two of the pins have a jumper. We will not concern ourselves with this jumper header (BIOS with Protect Jumper)

The JFP1, and JFP2 headers are close together. There is no separation in-between them.

The JFP2 header is for an internal speaker.
The JFP1 header is for the Front Panel cables.

The JFP1 header pins start from the right side of the motherboard, and go towards the left.

There are 5 pins across the Bottom. (Going from right to left)
There is NO pin, then there are 4 pins across the Top.
(Again, going from Right towards the left)

The top row of pins are numbered Evenly.
The bottom row of pins are numbered Odd.

Starting on the Right side, going towards the left for the Top row of pins, the pins are numbered,
10 (NO pin for 10), 8, 6, 4, and 2.

Starting on the Right side, going towards the left for the Bottom row of pins, the pins are numbered,
9, 7, 5, 3, and 1.

1) Pins 2 and 4 are for the Power On LED.

2) Pins 6 and 8 are for the Power On switch

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

4) Pins 5 and 7 are used for a Reset switch. (If applicable)

5) Pin 9 is not used.

Download the manual for you're MSI PM8M-V motherboard from MSI; http://www.msi.com/index.php?func=searchresult&keywords=PM8M-V&table=download
You will need to download and install Adobe reader to view the manual. Download Adobe; http://www.adobe.com/products/reader/
Open manual to page 9. See Front Panel Connectors: JFP1 & JFP2. There is no need to connect JFP2's Power LED jumper, this is completed at JFP1. Each wire jumper coming from the case will have one wire color in common with all connectors except the speaker jumper. That common colored wire will be use as negative.
The speaker wire commonly as red is positive and black is negative.

Cheers'
Mike

Hi,

You can download the manual by clicking this link:

http://download3.msi.com/files/downloads/mnu_exe/M7104v1.0.zip

The connections for JFP1 and JFP2 are given on page 13 of this manual.

Hope this solves your problem. Thanks for using FixYa

http://www.retrevo.com/r/11370bh228/4/Mainboard+Layout#q=MSI+MS-7021

The motherboard in your computer is an MSI MS-7145, which is also called RS480M. You can download a copy of the manual here. The front panel connections are on page 2-20.

Looking at the header JFP1, pins 1 through 9 (odd numbers) are the front row, pins 2 through 10 are the back. Pin 10 is the missing pin. The power switch connects to pins 6 and 8. The power LED connects to pins 2 and 4. The HDD LED connects to pins 1 and 3. The reset button, if used, connects to pins 5 and 7.