not accept the terms of the agreement, call the customer assistance telephone number. For customers in the UnitedStates, call 800-WWW-DELL (800-999-3355). For customers outside the United States, visit support.dell.com and selectyour country or region from the top of the page.Other Information You May NeedWARNING: See the safety and regulatory information that shipped with your system. Warranty information may beincluded within this document or as a separate document.• TheOwner’s Manual provides information about system features and describes how to troubleshoot the systemand install or replace system components. This document is available online at support.dell.com/manuals.• The rack documentation included with your rack solution describes how to install your system into a rack, ifrequired.• Any media that ships with your system that provides documentation and tools for configuring and managing yoursystem, including those pertaining to the operating system, system management software, system updates, andsystem components that you purchased with your system.NOTE: Always check for updates on support.dell.com/manuals and read the updates first because they oftensupersede information in other documents.Obtaining Technical AssistanceIf you do not understand a procedure in this guide or if the system does not perform as expected, see yourOwner’sManual. Dell offers comprehensive hardware training and certification. See dell.com/training for more information. Thisservice may not be offered in all locations.NOM Information (Mexico Only)The following information is provided on the device described in this document in compliance with the requirements ofthe official Mexican standards (NOM):Importer: Dell Inc. de México, S.A. de C.V.Paseo de la Reforma 2620 -11º PisoCol. Lomas Altas11950 México, D.F.Model number: E18SSupply voltage: 100 V CA–240 V CAFrequency: 50 Hz/60 HzCurrent consumption: 7.4 A – 3.7 A (X2) (with 550 W Redundant AC Power Supply Unit)7.4 A – 3.7 A (with 550 W Non-redundant AC Power Supply Unit)4.8 A – 2.4 A (X2) (with 350 W Redundant AC Power Supply Unit)Technical SpecificationsNOTE: The following specifications are only those required by law to ship with your system. For a complete andcurrent listing of the specifications for your system, go to support.dell.com.6