Adjusting Fan Speed Offset in Dell PowerEdge 12th Generation Servers

Adjusting Fan Speed Offset in Dell PowerEdge 12th Generation Servers



Article Summary: This article provides information on adjusting fan speed offset in Dell PowerEdge 12th generation servers


Issue:


Dell PowerEdge 12th Generation Servers have introduced a fan speed offset setting that enables fan speeds to be increased over those calculated by the Dell Thermal Control algorithm.
Some 3rd party add in cards will need the increase system fan speed response to provide additional cooling

Solution:


The Fan Speed Setting menu is found in the iDrac menu.
During BIOS boot, F2 -> IDRAC settings -> Thermal -> Fan Speed Offset.

The Fan Speed setting menu allows the user to select Low Fan Speed Offset and High Fan Speed Offset.

The Low Fan Speed Offset drives fan speeds to a moderate fan speed (approx. 50%), and the High Fan Speed Offset drives fan speeds close to full speed (approx. 90-100%).

For PCIe card power levels of 15W or greater and less than 75W, it is recommended that fan speed offset of "Low" is selected.
For cards expected to exceed 75W per PCIe Slot, fan speed offset of "High" is recommended.

Some 3rd party add in cards will need the increase system fan speed response to provide additional cooling.


Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.

Article ID: SLN283419

Last Date Modified: 07/19/2016 07:18 PM


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