Anyway, here's a correct answer to your problem:
The power supply is fine. You see, some mobos have 20 pin power connections, others have 24 pin power connections. To cater to both crowds at once, power supply makers sometimes use 20+4 connections. What this means is that there are 2 cables, one with 20 pins, another with 4. If your mobo has a 20 pin connection, you just use the 20 pin cable, and leave the 4 pin cable just sitting around. If your mobo has a 24 pin connection, you connect the 20 pin cable and the 4 pin cable together (theres a little groove and they click into place) and then connect your newly made 24 pin cable to your mobo.
Hope that cleared things up.