HP ProLiant 300-series AMD-based G6 server technology

Figure 5. Rapid response of Dynamic Power Capping avoids circuit breaker trips
Managing processor technologies
Built into AMD Opteron processors is the AMD-P suite of power management technologies, including
AMD PowerNow™ Technology, and AMD Power Cap Manager™.
PowerNow! Technology
AMD PowerN
ow! Technology with Independent Dynamic Core technology and Dual Dynamic Power
Management™ is technology that allows the processors to run dynamically at different frequencies
and voltages depending upon CPU computing demand. As a result, PowerNow! can lower server
power consumption without compromising performance.
AMD PowerNow! can be enabled on ProLiant AMD-based 300-series G6 servers through the BIOS-
controlled Dynamic Mode of Power Regulator for ProLiant, which does not require an OS driver.
Power Cap Manager
Power Cap Manager allows administrators to set a fixed limit on a server'
s processor power
consumption. In a multi-core environment, administrators control the P-state of individual cores. The
caveat is that a single voltage is supplied to all cores in the processor even if different P-states are
requested by the user. If an administrator requests different P-states for different cores in the processor,
the actual P-state will equal that of the highest voltage required among the selected P-states.
Administrators can control this functionality through HP Dynamic Power Capping, accessed from
iLO 2 advanced menus or the HP ICE management suite.
AMD Core Select and HP Core Disable
AMD Core Selec
t lets administrators use the RBSU to select the number of software-visible cores per
CPU (minimum of one, up to full number supported). Operating systems and applications can
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