HP ProLiant AMD-based 100-series G7 servers

12
Common Slot power supplies
The HP Common Slot power strategy provides power supply commonality across supported ProLiant
G7 servers. Three different sized common slot power supplies are available so customers can choose
the most effective power supply to match their needs. “Right sizing” power supplies lets you more
closely match the power supply to the server power requirements in specific environments,
significantly reducing wasted power. The HP Common Slot power strategy has also reduced the
number of power supply designs, which in turn reduces the number of spares you need to keep in the
data center.
Power supply efficiency relates to the level of effective transfer and delivery of power through the
power chain. Table 2 shows that HP power supplies have achieved efficiency ratings of up to 94%,
meeting the Climate Savers Platinum requirements.
Table 2. HP power supply efficiency and Climate Savers rating
Power supply Efficiency Rating
460W AC up to 92% efficiency Climate Savers Gold
750W AC up to 92% efficiency Climate Savers Gold
1200W AC up to 94% efficiency Climate Savers Platinum
1200W 48VDC up to 90% efficiency Climate Savers Silver
Use the HP Power Advisor to help determine which power supplies will best meet your needs:
www.hp.com/go/hppoweradvisor
.
Thermal sensors and fan control
Thermal sensors and fan control in the ProLiant AMD based 100-series G7 servers remain unchanged
from the previous generation G6 servers. Sensor data from the processor, hard drive enclosure, and
mother board provide thermal information to firmware that controls fan speed. Fan speed is altered to
increase or decrease cooling based on the sensor data and location. If one fan fails, all the other fans
default to high speed so the server remains within thermal specifications.
Optional redundant fans
The Pr
oLiant DL165 G7 default configuration consists of four fans in a one-processor platform, and
seven fans in a two-processor platform. The seven fan configuration provides N+1 redundancy. N+1
redundant means that if one fan fails the system can continue running until a planned downtime when
the failed fan can be replaced. Customers can purchase the N+1 fan redundancy option (an
additional three fans) for the one-processor platform.
Managing processor technologies
The AMD-P suite of power management technologies is built into AMD Opteron 6100 series
processors. The following processor management technologies are supported in the ProLiant AMD-
based 100-series G7 servers.
Cool Speed ™
Cool Speed tec
hnology protects processor integrity by reducing power-states when an established
temperature limit is reached. This technology allows a server to continue operating if the processor
thermal environment exceeds safe operational limits.
It is important for managers to understand that Cool Speed is an automated processor feature. Within
a warm room rack environment, some server platforms may initiate this process while other servers do