Digital Equipment DECstation 5000/100 Series, Maintenance Manual

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Nonvolatile RAM (NVR) Test
The nonvolatile RAM (NVR) test checks the system module
nonvolatile RAM. To run the NVR test, type
t 3/rtc/nvr
[
pattern
] and press Return.
When you type the NVR test command, replace the optional
pattern parameter with a specific pattern that you want to use
in the test. The default pattern is 55.
NVR test error messages
NVR test error messages have the form
?TFL: 3/rtc/nvr ( code : address = actual , sb expected )
?TFL 3/rtc/nvr indicates that the NVR test read an incorrect
pattern from the NVR.
code represents a number that identifies which portion of
the test failed.
address
represents the address at which the error occurred.
actual represents the value at that address.
expected represents the expected value at that address.
Overheat Detect Test
The overheat detect test checks whether the power supply is
overheating. To run the overheat detect test, type
t 3/misc/pstemp
and press Return.
Overheat detect test error message
The only overheat detect test error message is ?TFL: 3/misc
/pstemp (system is *HOT*), which indicates that the system is
overheating.
D–6 Base System Test Commands and Messages