If you try to remove Pin 10 from the motherboard, the warranty will be voided. So, my recommendation will be to take the motherboard back to the place of purchase and replace it for the revision G39010-400.
I returned now the DZ77RE75K Version # G39010-302 to the supplier.
From where can I get/buy now a DZ77RE75K Version # G39010-400 in Switzerland, Austria or Germany ?
I asked several dealers for a DZ77RE75K Version # G39010-400 Box-Version. Either they are unable to tell what version the will deliver or they only have the old one G39010-302.
Likewise, I tried to return a version 302 board for a version 400 board. Spoke with Intel Customer services. The long and short of it was that the version 400 board does NOT exist. Despite what was written in the Product Change Notification, customer services told me that Intel never got around to producing a version 400 board. They offered me a GZ77GA-70K board instead, which I declined. I would rather keep my Thunderbolt-enabled board and work around any USB3.0 issues by installing a USB3.0 PCI-E card, instead.
If this information is not accurate, can someone pipe up and say that they do actually have a version 400 board?
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I am afraid it would not be possible to get the board revision 400. The implementation on this motherboard has been cancelled due to a product discontinuance announcement, made on the following PCN 112240-00 published on May 1, 2013. https://qdms.intel.com/Portal/SearchPCNDataBase.aspx?mm=920735
I would like to apologize for the inconvenience.