Cooling fansThe system supports the following:• An internal cooling fan• An optional external cooling fan at the back of the chassisNOTE: When selecting or upgrading your system configuration, verify the system powerconsumption with the Dell Energy Smart Solution Advisor at dell.com/ESSA to ensure optimumpower utilization.Removing the internal cooling fanPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.CAUTION: Never operate your system with the internal cooling fan removed. The system canoverheat and result in shutdown of the system and loss of data.CAUTION: Do not operate the system with the cover removed for a duration exceeding 5minutes.1. Ensure that you read the Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Remove the cooling shroud.Steps1. Disconnect the internal cooling fan power cable from the system board.2. Press the release tab on the internal cooling fan, and holding the internal cooling fan by the sides,slide it out in the direction of the arrow marked on the fan.CAUTION: Do not remove or install the internal cooling fan by holding the fan blades.92