Motherboard;
http://www.amazon.com/MSI-G31M3-L-V2-MS-7529-Motherboard/dp/B005FZ6ZHMNote the G31M3-L V2
http://www.msi.com/service/search/?kw=G31M3-L%20&type=productUsing the G31M3-L V2 / as an example. Click on it.
http://www.msi.com/product/mb/G31M3-L-V2---G31M3-LS-V2.htmlHover your mouse cursor on Download(Overview / Specification / Download / Support / etc)In the drop down list click on -> ManualScroll down a little. Click on the appropriate version;M7529V1.1, or M7925V1.0, in Blue.Click on the country name nearest yours.A small window will come up on the right -Opening M7529v1.0.zip, or M7529v1.1.zipDepending on which one you clicked.Make SURE there is a Green dot in the small circle, to the left of Save File.If there is not a Green dot, left-click in the empty circle to the left of Save File.Click on OK.A small window will come up on the left. Allow the file to fully download in this Download window. Then DOUBLE-click right on the file name.In the next window go to the far left, and click on Extract all files.At the bottom of the next 3 small windows, click on -Next, Next, and Finish.In the last small window Double-click on the file name.(Next to the Adobe PDF icon)There is the User Manual, and the Front Panel header pinout.(F_PANEL1, or similar)The above doesn't work for you? Do not have WinZip?Then suggest you download, and install the free 7-ZipStill no good?Post back in a Comment, and I will detail out the Front panel header pinout, and also will answer any questions you might have, about the individual pin hookups. (As in which ones are for the HarDDrive activity LED, Power On LED, Power On switch, etc)Regards,joecoolvette