Intel has already fixed this problem by replacing every defective chip set with a Rev B3
Try the following steps to identify if the computer comes with B2 or B3.
Right click on My computer
Go to device manager
And expand Universal Serial Bus
Locate Intel(R) 6 series/c200 series Family USB enhanced Host controller
Right click and properties
If hardware ID ends in 04, the system is using B2.
If hardware ID ends in 05, the system is using B3
Please bear in mind the problem was identified only with B2 chipset revisions.
If you find B2 chipset revision, you need to contact your computer manufacturer for further actions.
Sorry for the dead photos.
I did contact with my manufacturer because I identified my chipset was B2 by using the method you provided.
The revision number reads from the firmware CONFLICTS the one printed on the chipset die.
However, my manufacturer said that the chipset is a B3 one, and refused to replace it.
They also told me the conflicted rev number was caused by Intel because of a wrong firmware.
Therefore, I want to hear the answer from INTEL, not my manufacturer.
Device Manager: http://i.minus.com/ib0RJgJAd1aGev.png