front panel connectors.what do they mean?

aggelos123

Honorable
Oct 26, 2013
254
0
10,790
ok so i have ordered a motherboard GIGABYTE GA-F2A88XM-HD3 has the following front panel pins which i am not sure if i am writing them correctly becuase they are not so clear to see from the picture...but i think they are
+PLED- +PW-
+HD- -RES+ NC

what do they mean?i only know that pled stands for power led and hd stands for the hd led..what do the other 3 mean?