User's Manual

omdiag: Using the Diagnostic Service 27
omdiag chassis cmos
Use the omdiag chassis cmos command to test the system configuration information in the
CMOS settings. The following test is performed:
• Checksum Test — Performs a checksum test on the CMOS memory to determine if any bytes are
corrupt. This test scans the CMOS memory and calculates the checksum of the bytes read from the
checksum range. The calculated result is compared with the results stored in the CMOS memory. If
they match, the test succeeds; otherwise, the test logs errors.
omdiag chassis memory
Use the omdiag chassis memory command to test the system's RAM. The following test is performed:
NOTE: Shut down all other programs before running this test.
NOTE: Sufficient swap-space (temporary storage space used during a move or reconfiguration) is needed to
support the demands of the memory test.
NOTE: This test checks only memory seen by the operating system on systems that have redundant memory
support (spare bank or mirroring).
• Pattern Test — Checks your system’s memory by using a data patterns test. These patterns test the
memory's storage integrity and its ability to store data accurately. This test writes a pattern to each byte
in the memory and reads the pattern back. This verifies that the data paths, error-correction circuits,
and the memory devices themselves are working correctly.
omdiag chassis modem
Use the omdiag chassis modem command to run tests on all modems.
NOTE: This test runs on analog communication lines (regular telephone lines) and will not test a cable or Digital
Subscriber Link (DSL) modem. Currently, a test is not provided for testing cable or DSL modems; you can, however,
test cable or DSL Internet connections. To test an Internet connection that uses a cable or DSL modem, you must
use the network test.
NOTE: Shut down all other programs before running this test. If other programs use the modem, the test does not
run and you see "Cannot Run" in the Results window.