Intel ISP4400 - Server Platform - 0 MB RAM, Product Manual

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Removing and Installing System Components 59
WARNING
Hazardous conditions, power supply: Hazardous voltage, current, and
energy levels are present inside the power subsystem. There are no
user-serviceable parts inside it; servicing should be done by technically
qualified personnel.
CAUTIONS
Electrostatic discharge (ESD) and ESD protection: ESD can damage
disk drives, add-in boards, and other components. This server can withstand
normal levels of environmental ESD while hot-swapping SCSI hard drives.
However, Intel recommends doing all procedures in this manual only at an
ESD-protected workstation. If one is not available, provide some ESD
protection by wearing an antistatic wrist strap attached to chassis ground of
the server—any unpainted metal surface—when handling components.
Cooling and air flow: Once you remove a power supply, make sure you
replace it within two minutes. If not possible in this timeframe, re-insert the
original unit. When a replacement unit is available, repeat the replacement
procedure. Vacant spaces alter airflow patterns in the server system and
may cause environmental conditions to exceed the environmental limits of
the server.
Removing a Power Supply Module
1. Remove the front bezel by gently pulling on the edge of the front bezel. The ball studs of the
bezel release. One of four ball studs is noted by "A" in Figure 28.
OM09954
A
Figure 28. Ball Stud From Inside the Front Bezel
2. Check the LED for each power supply module to determine which power supply module needs
to be replaced.
3. Loosen the screw for the power supply module.