5. Rotate the hot-swap rear hard disk drive cage down (see “Rotating thehot-swap rear hard disk drive cage down” on page 169.6. Install the server top cover (see “Replacing the server top cover” on page 260.7. Reconnect the external cables; then, reconnect the power cords and turn on theperipheral devices and the server.Removing the system batteryUse this information to remove the system battery.About this taskThe following notes describe information that you must consider when replacingthe battery:v IBM has designed this product with your safety in mind. The lithium batterymust be handled correctly to avoid possible danger. If you replace the battery,you must adhere to the following instructions.Note: In the U. S., call 1-800-IBM-4333 for information about battery disposal.v If you replace the original lithium battery with a heavy-metal battery or abattery with heavy-metal components, be aware of the following environmentalconsideration. Batteries and accumulators that contain heavy metals must not bedisposed of with normal domestic waste. They will be taken back free of chargeby the manufacturer, distributor, or representative, to be recycled or disposed ofin a proper manner.v To order replacement batteries, call 1-800-IBM-SERV within the United States,and 1-800-465-7999 or 1-800-465-6666 within Canada. Outside the U.S. andCanada, call your support center or business partner.Note: After you replace the battery, you must reconfigure the server and resetthe system date and time.Statement 2Figure 121. PCI riser-card assembly 2 installationChapter 6. Removing and replacing components 209