Chapter 1. The System x3500 serverThe IBM ® System x3500 Type 7977 server is a 5-U 1-high high performance server.It can be upgraded to a symmetric multiprocessing (SMP) server through amicroprocessor upgrade. It is ideally suited for networking environments that requiresuperior microprocessor performance, efficient memory management, flexibility, andlarge amounts of reliable data storage.Performance, ease of use, reliability, and expansion capabilities were keyconsiderations in the design of the server. These design features make it possiblefor you to customize the system hardware to meet your needs today and provideflexible expansion capabilities for the future.The server comes with a limited warranty. For information about the terms of thewarranty and getting service and assistance, see the Warranty and SupportInformation document.The server contains IBM Enterprise X-Architecture technologies, which helpincrease performance and reliability. For more information, see “What your serveroffers” on page 4 and “Reliability, availability, and serviceability” on page 5.You can obtain up-to-date information about the server and other IBM serverproducts at http://www.ibm.com/eserver/xseries/.Related documentationThis User’s Guide contains general information about the server, including how toinstall supported optional devices and how to configure the server. The followingdocumentation also comes with the server:v Installation GuideThis printed document contains instructions for setting up the server and basicinstructions for installing some optional devices.v Warranty and Support InformationThis document is in Portable Document Format (PDF) on the IBM System xDocumentation CD. It contains information about the terms of the warranty andgetting service and assistance.v Safety InformationThis document is in PDF on the IBM System x Documentation CD. It containstranslated caution and danger statements. Each caution and danger statementthat appears in the documentation has a number that you can use to locate thecorresponding statement in your language in the Safety Information document.v Problem Determination and Service GuideThis document is in PDF on the IBM System x Documentation CD. It containsinformation to help you solve problems yourself, and it contains information forservice technicians.Depending on the server model, additional documentation might be included on theIBM System x Documentation CD.1. Racks are measured in vertical increments of 4.45 cm (1.75 inches) each. Each increment is called a ″U.″ A 1-U-high device is1.75 inches tall.© Copyright IBM Corp. 2007 1