NEC NEAX Express Service & Reference Manual page 52

After a few seconds your system begins the internal Power-On Self Tests
(POST). POST automatically checks the system board, CPU module, memory,
keyboard, and most installed peripheral devices.
Always allow POST to complete before powering down your
system.
The server management logic on your system board
monitors and logs system voltage changes. When powering
down your system you may experience a 1–5 second delay
from the time you press the push-button power on/off switch
on the front panel and your system powering down. This is
normal system operation and is required by the server
management logic.
If you have problems powering on your system, refer to Problem Solving in
Chapter 5 of this User's Guide.
After you have successfully powered on your system, refer to "Configuring
Your System" in Chapter 3 of this User's Guide.
2-14 Setting Up the System
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