–Maximum Performance (Performance Optimized) :
* Reduced probability of memory or CPU throttling.
* Increased probability of turbo mode activation.
* Generally, higher fan speeds at idle and stress loads.
–Minimum Power (Performance per Watt Optimized):
* Optimized for lowest system power consumption based on optimum fan power state.
* Generally, lower fan speeds at idle and stress loads.
NOTE: Selecting Maximum Performance or Minimum Power, overrides thermal settings
associated to System Profile setting under System BIOS → System BIOS Settings.System
Profile Settings page.
•Maximum Exhaust Temperature Limit — From the drop-down menu, select the maximum
exhaust air temperature. The values are displayed based on the system.
The default value is Default, 70°C (158 °F).
This option allows the system fans speeds to change such that the exhaust temperature does not
exceed the selected exhaust temperature limit. This cannot always be guaranteed under all
system operating conditions due to dependency on system load and system cooling capability.
•Fan Speed Offset — Selecting this option allows additional cooling to the server. In case
hardware is added (example, new PCIe cards), it may require additional cooling. A fan speed
offset causes fan speeds to increase (by the offset % value) over baseline fan speeds calculated by
the Thermal Control algorithm. Possible values are:
–Low Fan Speed — Drives fan speeds to a moderate fan speed.
–Medium Fan Speed — Drives fan speeds close to medium.
–High Fan Speed — Drives fan speeds close to full speed.
–Max Fan Speed — Drives fan speeds to full speed.
–Off — Fan speed offset is set to off. This is the default value. When set to off, the percentage
does not display. The default fan speed is applied with no offset. Conversely, the maximum
setting will result in all fans running at maximum speed.
The fan speed offset is dynamic and based on the system. The fan speed increase for each offset
is displayed next to each option.
The fan speed offset increases all fan speeds by the same percentage. Fan speeds may increase
beyond the offset speeds based on individual component cooling needs. The overall system
power consumption is expected to increase.
Fan speed offset allows you to increase the system fan speed with four incremental steps. These
steps are equally divided between the typical baseline speed and the maximum speed of the
server system fans. Some hardware configurations results in higher baseline fan speeds, which
results in offsets other than the maximum offset to achieve maximum speed.
The most common usage scenario is non-standard PCIe adapter cooling. However, the feature
can be used to increase system cooling for other purposes.
•Minimum Fan Speed in PWM (% of Max) — Select this option to fine tune the fan speed. Using
this option, you can set a higher baseline system fan speed or increase the system fan speed if
other custom fan speed options are not resulting in the required higher fan speeds.
–Default — Sets minimum fan speed to default value as determined by the system cooling
algorithm.
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