IBM 71455RU Installation And User Manual

Contents

v Locate LED: When this blue LED is lit, it indicates that the command from theserver IMM to the MAX5 expansion module is complete. Use this blue LED tolocate the MAX5 expansion module. The front locate LED also has a button thatyou can press to light up other servers or other MAX5 expansion modules towhich the MAX5 is connected. This LED is functionally equivalent to the LocateLED on the front of the MAX5.v Power connector: Connect the power cord to this connector.v AC power LED: Each hot-swap power supply has an ac power LED and a dcpower LED. When the ac power LED is lit, it indicates that sufficient power isbeing supplied to the power supply through the power cord. During normaloperation, both the ac and dc power LEDs are lit.v DC power LED: Each hot-swap power supply has a dc power LED and an acpower LED. When the dc power LED is lit, it indicates that power supply issupplying adequate dc power to the MAX5 expansion module. During normaloperation, both the ac and dc power LEDs are lit.v Power supply fault (error) LED: When this amber LED is lit, it indicates a faultyhot-swap power supply.v EXA link LED: When this green LED is lit, it indicates that an EXA link isfunctioning.Turning the MAX5 on and offBecause the MAX5 expansion module is controlled by the server, turning on theMAX5 refers to connecting the MAX5 power cord to the power source and pressingthe power-control button on the host server that is connected to the MAX5expansion module and is configured to identify the expansion module. Normally, theoperating system on the server starts, and the server issues a power-on request tothe MAX5. The IBM MAX5 for System x (MAX5) memory expansion module isturned off only if the connected server issues a power-off request and youdisconnect the MAX5 power cord from the power source. You cannot turn off theMAX5 expansion module manually.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.12You can disconnect the MAX5 expansion module power cords from the powersource to shut off all power immediately without damaging the MAX5, but it mightcause an unrecoverable error and loss of data on the connected server.24 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide