You may be trying to register your processor in the registration center that is used mostly for software development products. hence the 12 digit requirement,
It appears that you may not need to register your processor.
Please see "Is product registration required before processing a warranty request?" here: http://www.intel.com/content/www/us/en/support/processors/000005494.html
If you need additional support regarding processors, please post to the communities here: https://communities.intel.com/community/tech/processors
Or, you can submit a support ticket here: http://www.intel.com/p/en_US/support/contactsupport
Intel(R) Developer Zone Support
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