Thank you for posting on the Intel® communities.
We would like to inform you that due to the Intel® Core™ i3-2120 Processor has been discontinued, Intel Customer Service no longer supports inquiries for it, but perhaps fellow community members have the knowledge to jump in and help. You may also find the Discontinued Products website helpful to address your request. Thank you for understanding.
You can verify this product's discontinuance status at http://ark.intel.com/ > Product Status > "Discontinued", as well in the same link you can verify Product Specifications, for instance, PCI Express Revision number supported: 2.0.
Note: Our support is only provided in English and we use a translation tool embedded on this Intel Community to check this inquiry.
Intel Customer Support Technician