Technologies for the ProLiant ML570 G4 and ProLiant DL580 G4 servers

port with normal traffic. This shared arrangement eliminates the need for an extra network connection
for iLO 2.
For more information about iLO 2, refer to the HP technology brief titled “
Integrated Lights-Out
technology: enhancing the manageability of ProLiant servers.”
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Mechanical design for serviceability
The ProLiant ML570 G4 and DL580 G4 servers follow the well-established tradition of excellent
mechanical design in ProLiant servers. The designs improve thermal efficiencies, improve the ability to
withstand mechanical shocks, and provide easy-to-service components.
Common components
Both servers share the same processor heat sink design, hot-plug redundant fans, hot-plug redundant
power supply design, universal rail design, and the same cable management arms. Use of the same
parts allows customers to keep fewer spare parts in stock and greatly simplifies ordering and storage
of replacement parts.
The processor heat sink design includes three guiding pins and a special locking lever mechanism to
reduce the likelihood of damaging the processor when inserting the heat sink (Figure 10). The lever,
which is extended out for easy access, has to be in the proper position before it can lock the
processor.
Figure 10. Processor heat-sink in the ML570 G4 and the DL580 G4 servers
The ML570 G4 and the DL580 G4 use a single, redundant, hot-plug fan form factor throughout the
servers. Both servers support six hot-plug fans.
Both servers ship with tool-free, snap-in, sliding rails and a cable management system for simple
deployment in HP and third-party racks and for in-rack server access. The rail system is ambidextrous;
that is, the same rail can be used on either side of the rack with minor adjustments to the rail system.
The rail system accommodates a much broader range of rack designs than previous rail systems. It
provides tool-free support for square-hole, round-hole, and threaded-hole racks and for adjusting to
rack depths of 23.75 to 35 inches (
603.25 to 889.00 millimeters). The cable management arms are
also ambidextrous and independent of the hole design in the racks. The ambidextrous cable
management arms allow customers to choose whether to put all the cables down one side of the rack
or to switch sides from one server to the next.
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Available at this URL: www.hp.com/servers/technology
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