Layoyt description for connecting front panel cabling/connectors to MS7933 ver 1.0

[HenrikM]

Hi, I needed to replace the chassi of HP Prosesk 490 MT G2, moving the motherboard and everything else to the new chassi.

In doing so, as there is new on/off switch cabling to the new chassi, I need to connect such cables to the pins on the motherboard. Hence, needed to connect new cabling for the Front panel, on/off, Power led, HD led, reset etc. However, existing cables are integrated into one concact and I have no documentation on which connector that is what on the mother moard (MS 7933 ver 1.0) that should to to which cable. I get no support from the vendor where I bought the computer, they aregue that HP does not supply such documentation as the computer was 'packeged all ready' and no intended to be upgraded. 

There are 9 pins which I can connect to, two rows of five, with a blank connector in the middle of one row. (the lower row in illustration below)

1           2              3            4              5

6            7                            8              9

As far as I can see, the existing power switch cable seem to be connected to 8 and 9.

There also seem to be a loop, connecting 7 with 1. 

6 seem not to be used. Note also that there is no connector in the middle of the lowest row. 

What shuld be the cabling for 2,3,4,5?

I can try to fiddle with if, but not sure if I risk breaking something.

Could anybody refer me to where I can find documentation on the layout of these pins on the mothermoard.

Thank you

/Henrikfront end connectors of MS 7933

[DGroves]

remove the old case's front, note the wires and color of said wires comming from the HD light, pwr switch and trace them down to the header that connected to the board,  doing this will tell you which two pins are for the HD access light and the polarity of the +/-  , do the same for the power switch