T Ests In The System Diagnostics - Dell 4100 Installation And Troubleshooting Manual

Quit
Selecting from the Main menu exits the diagnostics
QUIT
and returns you to your operating system environment.
CAUTION: It is important that you quit the diag-
nostics program correctly because the program
writes data to the computer's memory that can
cause problems unless properly cleared.
T
ests in the System Diagnostics
To troubleshoot components or devices, run the appropri-
ate test (test group or subtest) in the diagnostics. The
Test
Groups Subtests
RAM Quick Memory Test
Comprehensive Memory Test
Cache Memory Test
System Set CMOS Confidence Test
CMEM Confidence Test
DMA Controller Test
Real-Time Clock Test
System Timers Test
Interrupt Controller Test
Reset Button Test
System Speaker Test
Coprocessor Calculation Test
Coprocessor Duty Cycle Test
Coprocessor Error Exception Test
Multiprocessor Test
NOTE: For the full name of an abbreviation or acronym used in this table, see the abbreviation and acronym list.
Table 5-2. System Diagnostics Tests
diagnostics exercises the functional components and
devices of the computer system more vigorously and
thoroughly than they are exercised during normal opera-
tion. The diagnostics is organized by components into
test groups and subtests within each test group. Each sub-
test is designed to detect any errors that may interfere
with the normal operation of a specific device of the
computer.
NOTE: Some subtests requiring hardware not listed in
the System Configuration area of the diagnostics screen
appear to run, but they conclude with a status message
stating Component not present (or disabled).
Table 5-2 lists the diagnostic test groups, their subtests,
and comments concerning their use.
Description
Tests the system RAM and processor cache.
Tests the system board's support chips, DMA control-
ler, computer timer, NVRAM, speaker controller,
cache, and EISA configuration RAM chip, as appro-
priate.
Tests the math coprocessor that is internal to the
microprocessor.
For systems with multiprocessors, confirms that the
secondary microprocessor is operational.
Running the System Diagnostics 5-9