of this settlement, the other related estimated settlement, and offsetting insurance reimbursements, we recorded a net charge of $12.7 million to sales, general and administrative expense during the second quarter of fiscal year 2011. Together with the $282.0 million net charge we had previously recorded for related estimated costs, this brings the total cumulative net charge to $475.9 million, of which $466.4 million has been charged against cost of revenue and the remainder has been charged to sales, general and administrative expenses. 

 

The previous generation MCP and GPU products that are impacted were included in a number of notebook products that were shipped and sold in significant quantities. Certain notebook configurations of these products are failing in the field at higher than normal rates. Testing suggests a weak material set of die/package combination, system thermal management designs, and customer use patterns are contributing factors for these failures. We have worked with our customers to develop and have made available for download a software driver to cause the system fan to begin operation at the powering up of the system and reduce the thermal stress on these chips. We have also recommended to our customers that they consider changing the thermal management of the products in their notebook system designs. We intend to fully support our customers in their repair and replacement of these impacted products that fail, and their other efforts to mitigate the consequences of these failures. The weak die/packaging material combination is not used in any of our products that are currently in production.



        In September, October and November 2008, several putative securities class action lawsuits were filed against us, asserting various claims related to the impacted MCP and GPU products.  Please refer to Note 13 of the Notes to the Consolidated Financial Statements in Part IV, Item 15 of this Form 10-K for further information regarding this litigation and the settlement. 

 

Tender Offer



During the first quarter of fiscal year 2010, we announced that our Board of Directors approved a cash tender offer for certain employee stock options. The tender offer applied to outstanding stock options held by employees with an exercise price equal to or greater than $17.50 per share. None of the non-employee members of our Board of Directors or our officers who file reports under Section 16(a) of the Securities Exchange Act of 1934, as amended, including our former Chief Financial Officer, Marvin D. Burkett, were eligible to participate in the Offer. All eligible options with exercise prices less than $28.00 per share, but not less than $17.50 per share, were eligible to receive a cash payment of $3.00 per option in exchange for the cancellation of the eligible option. All eligible options with exercise prices greater than $28.00 per share were eligible to receive a cash payment of $2.00 per option in exchange for the cancellation of the eligible option.

 

A total of 28.5 million options were tendered under the offer for an aggregate cash purchase price of $78.1 million, which was paid in exchange for the cancellation of