Statement 5:CAUTION:The power control button on the device and the power switch on the powersupply do not turn off the electrical current supplied to the device. The devicealso might have more than one power cord. To remove all electrical currentfrom the device, ensure that all power cords are disconnected from the powersource.12The server can be turned off in any of the following ways:v You can turn off the server from the operating system, if your operating systemsupports this feature. After an orderly shutdown of the operating system, theserver will be turned off automatically.v You can press the power-control button to start an orderly shutdown of theoperating system and turn off the server, if your operating system supports thisfeature.v If the operating system stops functioning, you can press and hold thepower-control button for more than 4 seconds to turn off the server.v If the Wake on LAN feature turned on the server, the Wake on LAN feature canturn off the server.v The IMM can turn off the server as an automatic response to a critical systemfailure.v You can turn off the server through a request from the IMM.IBM MAX5 for System x memory expansion moduleIf you purchased an optional IBM MAX5 for System x (MAX5) memory expansionmodule, it supports up to 32 DDR3 DIMMs, two 675-watt power supplies, and five40 mm hot-swap speed-controlled fans. It provides added memory and multi-nodescaling support for host servers. The MAX5 expansion module is based on eX5, thenext generation of Enterprise X-Architecture. The MAX5 expansion module isdesigned for performance, expandability, and scalability; the fans and powersupplies use hot-swap technology for easy replacement without requiring that theexpansion module be turned off.If you are adding an optional MAX5 or scaling to another server, see the rackinstallation instructions that comes with the cable option kit.The following illustration shows the MAX5 memory expansion module. Theillustrations in this document might differ slightly from your hardware.18 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
