Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Reference is made to Item 8.01 of this Current Report on Form 8-K.

Item 8.01 Other Events

Effective May 18, 2009 at 12:01 a.m. Eastern Time, the registrant changed its corporate name from Rackable Systems, Inc. to Silicon Graphics International Corp.

The registrant effected the corporate name change by filing a Certificate of Ownership and Merger with the Secretary of State of the State of Delaware, pursuant to which a wholly-owned subsidiary of the registrant merged with and into the registrant (the "Merger"). A copy of the Certificate of Ownership and Merger is filed herewith as Exhibit 3.3. The registrant is the surviving corporation in the Merger. The Certificate of Ownership and Merger amended the registrant's Amended and Restated Certificate of Incorporation to reflect the change in corporate name. In addition, as a result of the corporate name change, the registrant revised its specimen common stock certificate, a copy of which is filed herewith as Exhibit 4.2.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

3.3 Certificate of Ownership and Merger of registrant.

4.2 Specimen common stock certificate of registrant.

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