Need help with ground wires....

[dyne]

im building my pc as i type this. i have an msi kt4 ultra and i bought the chieftec server tower with acrylic window and 450 w power supply from newegg. ive ogt most of the easy wires hooked up (mostly the led ones) but theres a fat cord with a couple ground wires and a couple with very small volt numbers on them. i have no idea what to do with them.

 

[Bardic]

That is probably your cable for the front USB ports. If your motherboard has header pins for more USB connections the booklet would say where the ground and + and - connections would be.