Rear viewThe following illustration shows the indicators on the rear of the IBM MAX5 forSystem x (MAX5) memory expansion module.Power-onLEDLocateLEDSystemerrorLEDAC LED (green)DC LED (green)Power supplyfault (error) LEDQPIport 1PowerconnectorsEXA port 1LEDlinkEXA port 2LEDlinkEXA port 3LEDlinkEXAport 1EXAport 2EXAport 3QPIport 2QPIport 3QPIport 4v Power-on LED: When this green LED is lit, it indicates that the MAX5 ispowered on. This LED is functionally equivalent to the power-on LED on thefront of the MAX5.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 to. This LED is functionally equivalent to theLocate LED on the front of the MAX5.v System error LED: When this LED is lit, it indicates that a system error hasoccurred.v QPI ports: Insert either a QPI cable or a filler panel in each of these connectors.Attention: When you handle the QPI cables, take precautions to avoid damagingthe high density interface. Dropping and incorrectly connecting the QPI cablescan damage the high density interface. Store the protective covers that come onthe end of the QPI cables for reuse when you perform maintenance on theserver or MAX5 or when you remove the cables for some reason.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.30 System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide
