Technologies in HP ProLiant Gen8 c-Class server blades

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Mezzanine expansion slots
ProLiant Gen8 server blades feature two or three PCIe 3.0 mezzanine expansion slots up to x16 bandwidth (PCIe 2.0 in
the ProLiant BL465c server blade). These expansion slots provide the highest performing I/O cards now and into the
future (Figure 7).
Figure 7:
HP Power Regulator for ProLiant
HP Power Regulator for ProLiant is a hardware feature that enables ProLiant servers to dynamically control
performance states (p-states) of the system processors. Insight Control Power Management monitors and uses HP
Power Regulator technology. p-states are affected by processor frequency and voltage:
 Processor frequency - A lower p-state causes the processor to operate at a lower frequency. For example, a 3.773
GHz processor might operate at 3.0 GHz in a lower p-state.
 Processor voltage - A lower p-state causes the processor to operate at a lower level of voltage. For example, a
processor operating at 1.4 V at maximum p-state might operate at 1.2 V in the minimum p-state.
Power Regulator operates in HP Static Low Power Mode, HP Static High Performance Mode, HP Static High Performance
Mode, HP Dynamic Power Savings Mode, and OS Control mode. You can find more information about Power Regulator in
the ”Power efficiency and power management in HP ProLiant servers” technology brief at
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c03161908/c03161908.pdf.