Only Certain USB ports work, on a brand new MoBo?

All of my USB ports work with hardware, I.E my Wacom Bamboo Tablet. However only 4 of them work with ANY memory stick,so what is wrong with all the others to not accept USB mass storage devices?
Yes, the front pannel is connected to the Motherboard correctly.
Yes, the memory stick(s) works fine.
USB ports not working (With Memory Sticks): Both Front pannel USB port, and two in the back of the motherboard.

Motherboard (Brand New)- GIGABYTE P55-UD2 Micro ATX
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More about only ports work brand mobo
  1. Do you have the latest BIOS? There we some updates made in a recent BIOS for USB compatibility issues. Most of the problems had to do with one USB device causing others not to work. But it could address your situation as well.
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