NEC 5800/180Ra-7 Manuale Utente

To install options in your BSU, you should do the following.

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To modify the system baseboard, I/O riser card, add a processor, add a
VRM, or add a removable media device, remove the front bezel and top
cover.

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To add memory (DIMMs) remove the front bezel,memory board cover,
and memory board.

For proper cooling and airflow, do not operate the system
with the top cover removed. Always replace it before
powering on the system.

Do not damage or bend the EMI fingers that are located
along the edges of the top cover, as you remove and install
it, or your system may not meet EMI requirements.

If you are removing the front bezel or top cover after the
system is set up, you must first power off the system and all
external devices. Unplug the system power cords.

You must remove the front bezel in order to remove the top cover on your BSU.
To remove the front bezel, perform the following.

1.  Observe the safety and ESD precautions listed at the beginning of this

chapter.

2.  If tower-based system remove the top cover of the tower cabinet and then go

to step 4. See Removing the Top Cover of the Tower Cabinet earlier in this
chapter.

3.  Power off the system. Ensure the power cords are unplugged from the AC

wall outlet.

4.  Loosen the five thumbscrews securing the front bezel, see Figure 4-5.

 Your system's front bezel controls a power

interlock switch directly behind the bezel, so that when the
front bezel is removed power is shut down to the system for
safety reasons.