Oval EL4101 - 3 About Intial Checks; Memory (Data;Hardware) Checks; 1.1 RAM (Work Area) Hardware Check

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E-880TM-3-E
1
3 . ABOUT INITIAL CHECKS
Each EL4001 series computer runs a series of initial performance checks at startup or power cycling. In
this initiation process, tests are performed on possible problems associated with CPU performance in the
computer, parameters and process variables stored in the memory, problems in the memories
themselves, and memory read/write.
The test items subject to the initial checks are:
1) Memories (data/hardware)
3.1 Memory (data/hardware) Check
←A screen during a memory check
In the initial check, a memory check covers both the hardware and data. Individual
memory check items appear sequentially.
3 1.1 RAM (work area) Hardware Check.
←A screen upon completion of a memory check
If found all right upon completion of a check, an “OK” appears. However, if errors
are found in certain (some) check items, corresponding error messages will
appear.
←A screen showing a memory check error
In the RAM (work area) check, proper read/write in and out of the memory is
verified. If an error condition is found in this check, an error message appears and
the CPU stops processing.
While this message appears, the CPU stops processing and does not accept any
command by keystrokes.
To restart, power cycling is required.