Patent ID: 7788421

Claim:
An apparatus for directing airflow through a computing device, comprising: an airflow baffle configured to direct airflow through the computing device; a first signal pin and a second signal pin on the airflow baffle which interface the airflow baffle with the computing device when the airflow baffle is installed in place of a Dual Inline Memory Module (DIMM) within the computing device, wherein the first signal pin interfaces with a SCL signal of an I2C interface on the computing device, and wherein the second signal pin interfaces with a SDA signal of an I2C interface on the computing device; and a first circuit in the airflow baffle coupled to the first signal pin and the second signal pin, wherein the circuit performs serial presence detect (SPD) functions and responds to a request to an SPD byte with a value via the first signal pin and the second signal pin during a boot sequence of the computing device to notify the computing device that the airflow baffle is installed in the computing device.