xi3UHIDFH$ERXW7KLV*XLGHThis guide is intended for anyone who wants to upgrade or troubleshoot a DellPowerEdge 4300 computer system. Before calling Dell for technical assistance, followthe recommended procedure(s) in this guide to solve most hardware and softwareproblems yourself. The chapters and appendixes are summarized as follows:á Chapter 1, “Introduction,” provides a brief overview of the system’s servicefeatures.á Everyone should read Chapter 2, “Checking the Basics,” for some initial checksand procedures that you can use to solve basic computer problems. It alsodirects you to the appropriate chapter in this guide for more detailed trouble-shooting information and procedures to solve more complex problems.á Whenever you receive an error message or code, you should read Chapter 3,“Messages and Codes.” This chapter discusses system messages, system beepcodes, warning messages, diagnostics messages, alert log messages, and smallcomputer system interface (SCSI) hard-disk drive indicator codes.á If you suspect that the problems are software-related, or you are still having prob-lems after testing the computer’s hardware, read Chapter 4, “Finding SoftwareSolutions.”á For hardware-related problems, read Chapter 5, “Running the Dell Diagnostics.”Chapter 6, “Checking the Equipment,” and Chapter 7, “Checking Inside the Com-puter,” provide troubleshooting procedures for equipment connected to theinput/output (I/O) panel of the computer and components inside the computer,respectively. Chapter 7 also provides information on removing the computercovers.á Chapter 8, “Installing System Board Options,” Chapter 9, “Installing Drives in theExternal Bays,” and Chapter 10, “Installing Hard-Disk Drives,” are intended foranyone who wants to install or remove internal components, such as dual in-linememory modules (DIMMs), expansion cards, and SCSI devices.á Chapter 11, “Getting Help,” describes the help tools Dell provides to assist youshould you have a problem with the computer. It also explains how and when tocall Dell for technical assistance. Chapter 11 also includes a Diagnostics Checklistthat you can copy and fill out as you perform the troubleshooting procedures. Ifyou need to call Dell for technical assistance, use the completed checklist to tell