NVRAM diagnostics
NVRAM3 diagnostics

Rules for running NVRAM on systems with the NVRAM3 card

Observe the following rules when you run the nvram diagnostic on systems with the NVRAM3 card:

Do not run this diagnostic immediately after a system crash.
Before you run nvram diagnostics, reboot and shut down the system.
Be aware that nvram diagnostics overwrite all contents of NVRAM.

You might need to back up the data on the NVRAM before you start nvram diagnostics, because it might not be possible to recover user data from NVRAM after the diagnostic.

You are alerted to be very careful by the following warning:

WARNING!

Do not run the NVRAM diagnostic immediately after a system crash or if there is a possibility that log data is stored. Run only on new boards, or after a normal system shutdown, or if there is no chance of preserving customer data.

NVRAM3 test menu

The following table describes the NVRAM3 test menu.

Test no	Test	Description
1	Comprehensive NVRAM test	Runs all tests in current mode.
2	Check contents of EEPROM	Verifies contents of onboard EEPROM.
3	Battery voltage check	Checks and displays battery voltage.
4	Memory data walking test	Runs quick test of data lines.
5	Memory address walking test	Runs quick test of all address lines to verify address paths in NVRAM memory.
6	Partial-word load/store test	Tests intermixed data sizes.
7	Memory random data test	Runs longer test by writing and reading random data to all NVRAM locations.
8	Memory random address test	Runs longer test using random addresses.
9	Random 64-bit data test	Runs test on 64-bit random data patterns.
10	ECC data-bits test	Runs ECC data-bits test.
11	ECC check-bits test	Runs ECC check-bits test.
41	Address pattern test	Runs address pattern test on memory addresses.
42	Charger test [Mfg]	Option not available.
71	Show DIMM size	Displays the capacity and size of the DIMMs.
76	Fill for power cycle test, burst read	Fills NVRAM memory with data patterns for power cycle test, which does burst reads.
77	Fill for power cycle test	Fills NVRAM memory with data patterns for power cycle test.
78	Verify data retention	Checks the retention of data in NVRAM after a power cycle. Data comes from data patterns entered in Test 75.
79	Memory read/write	Tests memory for read and write capability.
80	Show serial # and revision	Displays serial number and revision of the NVRAM.
81	Set serial # and revision [Mfg]	Option not available.
82	Display memory by address	Displays the contents of a memory address location.
83	Display onboard EEPROM	Displays information about the onboard EEPROM.
84	Display memory EEPROM	Displays information about the EEPROM dedicated to memory.
85	Show internal registers	Shows the location of the internal memory registers.
86	Set a register [Mfg]	Option not available.
90	NVRAM card selection	Enables the selection of a specific NVRAM card for testing.
91	Enable/disable looping	Enables or disables continuous running of a diagnostic test. The test is stopped when Ctrl-C is pressed or when an error is encountered if option 92 is active.
92	Stop/continue on error	Starts or stops running a diagnostic test on an error. If looping is enabled, as set by option 91, looping continues after an error is encountered.
93	Extended/normal test mode	Enables or disables extended mode on tests where extended mode is an available option.
99	Exit	Exits diagnostics.

NVRAM diagnostics NVRAM3 diagnostics

Rules for running NVRAM on systems with the NVRAM3 card

NVRAM3 test menu

NVRAM diagnostics
NVRAM3 diagnostics