About Your System 39Solving Problems Described by LCD Status MessagesThe code and text on the LCD can often specify a very precise fault conditionthat is easily corrected. For example, if the code E1418 CPU_1_Presenceappears, you know that a processor is not installed in socket 1.You might be able to determine the problem if multiple related errors occur.For example, if you receive a series of messages indicating multiple voltagefaults, you might determine that the problem is a failing power supply.Removing LCD Status MessagesFor faults associated with sensors, such as temperature, voltage, fans, and soon, the LCD message is automatically removed when that sensor returns to anormal state. For example, if temperature for a component goes out of range,the LCD displays the fault; when the temperature returns to the acceptablerange, the message is removed from the LCD. For other faults, you must takeaction to remove the message from the display:• Clear the SEL—You can perform this task remotely, but you will lose theevent history for the system.• Power cycle—Turn off the system and disconnect it from the electricaloutlet; wait approximately ten seconds, reconnect the power cable,and restart the system.W1628 Performancedegraded.Check PSU andsystemconfiguration.The system configurationrequires more powerthan what the powersupply can provide,but it can boot ifthrottled.Turn off power to thesystem, reduce thehardware configuration orinstall higher-wattagepower supplies, and thenrestart the system.NOTE: For the full name of an abbreviation or acronym used in this table, see theGlossary at support.dell.com/manuals.Code Text Causes Corrective Actions
