Installing System Components 915 Close the system. See "Closing the System" on page 48.6 Reconnect the system to the electrical outlet and turn on the system and attached peripherals.Activating the Integrated NIC TOETo add TCP/IP Offload Engine (TOE) functionality to the system’s integrated NIC, install the TOENIC hardware key in the TOE_KEY socket on the system board (see Figure 6-2). For TOE softwareinstallation instructions, refer to the documentation that came with your TOE NIC hardware key.MicroprocessorYou can upgrade the system processor(s) to take advantage of future options in speed and functionality,or add a second processor. Each processor and its associated internal cache memory are contained in aland grid array (LGA) package that is installed in a ZIF socket on the system board.Replacing a ProcessorCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1 Prior to upgrading your system, download the latest system BIOS version on support.dell.com.2 Turn off the system, including any attached peripherals, and disconnect the system from the electricaloutlet.3 Open the system. See "Opening the System" on page 48.4 Remove the fans from the center fan bracket. See "Removing and Installing a Fan" on page 53.5 Remove the center fan bracket. See "Removing the Center Fan Bracket" on page 82.NOTICE: When you remove the heat sink, the possibility exists that the processor might adhere to the heat sinkand be removed from the socket. It is recommended that you remove the heat sink while the processor is stillwarm.NOTICE: Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink isnecessary to maintain proper thermal conditions.6 Press the blue tab on the end of one of the heat-sink retention levers to disengage the lever, then liftthe lever 90 degrees. See Figure 3-23.book.book Page 91 Tuesday, September 1, 2009 4:19 PM
