Running the Dell Diagnostics 4-9How you change a value for the limits of a test group orsubtest depends on the type of parameter associated withit. Different keys are used to change values for differenttypes of parameters. For example, memory address limitsspecified for the RAM Test Group are changed by typingin numbers over the digits of a given limit or by pressingthe plus (+) or minus (–) key to increase or decrease thegiven limit. In contrast, to set limits for the Serial PortsTest Group, use the < SPACEBAR> to toggle between YESand NO.After you are satisfied with the limits, return to the mainscreen of the diagnostics by pressing the <ESC> key. Thevalues you selected under TEST LIMITS remain in effect untilyou change them or exit the diagnostics. The values are resetto their defaults when you restart the diagnostics.AboutABOUT in the Main menu displays information about thehighlighted test group, such as limits and parameters andhow to set them.Key-HelpKEY-HELP displays a list of key controls available for theselected option.QuitSelect QUIT from the Main menu to exit the diagnostics andreturn to an MS-DOS prompt.After you return to the operating system environment,remove your diagnostics diskette from drive A and reboot thecomputer by pressing <CTRL><ALT><DEL>.Tests in the Dell DiagnosticsThe diagnostics is organized by components into test groupsand subtests within each test group. Each subtest is designedto detect any errors that may interfere with the normal opera-tion of a specific device of the computer.NOTE: Any subtest requiring hardware not listed in theSystem Configuration area appears to run, but the sub-test concludes with a status message stating Componentnot available.Table 4-2 lists the diagnostic test groups, their subtests,and comments concerning their use.CAUTION: It is important that you quit the diag-nostic program correctly because the programwrites data to the computer’s memory that cancause problems unless properly cleared.
