This is the first time ive seen one like yours as all the ones Ive had needed jumpers to set the digits on the display so im guessing the + and - are to change the digits one at a time somehow as apposed to DC volts and the on board battery is to keep the settings when programmed. Usually your motherboard has a 3 pin turbo switch header for the turbo switch on the front of your pc case and then a turbo led will go from your pc case to your 3 digit display but then you will need power to run the 3 digits in a form of a molex bridge to your power supply or some power supply's have this cable for you but sorry I cant help any more than this someone else will probably know more. Was there any other cables with this display other than the single black one connected to "E" (earth?)

Thanks GabrielKnight123, i'm digging for more info...but' it's hard this time...

You can check with a multimeter which of the pins is the ground using the negative pole of the button battery socket. I suspect that + and - are the 5V and GND (respectively), which should be connected to the power supply (don't take this information for granted, I've made an assumption).

Check this page: http://www.minuszerodegrees.net/led_speed_dis … 0-%20DP-524.jpg. There may be a GND pin for the turbo led as well.
While the one showed here uses jumpers, there should be the same kind of connections at the back, regardless of your display's internal circuit, in order to be compatible with any motherboard.

done! At least it works.
Plus=5v Minus=GND

Now i have to understand how to change numbers..

Thanks for the support!

What an unusual display module. I've never seen one quite like that before.