Technologies for the ProLiant ML570 G3 and ProLiant DL580 G3 Servers Technology Brief

The processor heat sink design includes three guiding pins and also 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 heat sink down onto the processor.

Figure 10. Processor heat-sink design.

The ProLiant ML570 and the DL580 G3 use a single redundant, hot-plug fan form factor throughout

the servers. Both servers support six hot-plug fans. The use of a single fan form-factor is a huge

simplification compared to the G2 models, which had a total of five different fans between the two

servers.

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

so that the same rail design can be used on either side of the rack with minor adjustments to the rail

system. The rail system provides tool-free support for square-hole, round-hole, and threaded-hole racks

for adjusting to rack depths of 23

/4 to 35 inches — accommodating a much broader range of rack

designs than previous rail systems. 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.

Both servers incorporate a QuickFind diagnostic display inside the server chassis to provide specific

trouble-shooting information (Figure 11). The display includes LEDs for all major subsystems of the

server: PCI and PCI-X, memory, processors, redundant fans, overtemp indicator, etc. During normal

operations, all of the LEDs are off. An amber LED gives instant visual indication of a fault condition.