Service manual

Running the Dell Diagnostics: Dell Latitude CP
Tests in the Dell Diagnostics
The diagnostics is organized by components into test groups and subtests within each test
group. Each subtest is designed to detect any errors that may interfere with the normal
operation of a specific device of the computer.
NOTE: Any subtest requiring hardware not listed in the System Configuration area
appears to run, but the subtest concludes with a status message stating
Component not available.
Table 4-2 list the diagnostic test groups, their subtests, and comments concerning their use.
Table 4-2. Dell Diagnostics Tests
Test Groups Subtests Description
RAM Quick Test
Comprehensive Test
Secondary Cache Test
Tests the RAM.
System Set CMOS Confidence Test
DMA Controller Test
Real-Time Clock Test
System Speaker Test
System Timers Test
Interrupt Controller Test
Coprocessor Calculation Test
Coprocessor Error Exception
Test
PC Card Controller Test
USB Register Test
USB Memory Structure Test
Tests the system board's support
chips, DMA controller, computer
timer, NVRAM, speaker controller,
and, if appropriate, the external
cache and the thermal-control
device.
Tests the math coprocessor that is
internal to the microprocessor.
Tests the PC Card controller on the
system board.
Tests the computer's USB
connector.
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