The fans are controlled by the iDRAC. The iDRAC sets fans speeds based on installed hardware, ambient temperature, and other thermal probes.
I suggest checking the temperature probes to see if they are reading correctly. Also, remove or disconnect any hardware you have added. If you have installed unsupported hardware it can create odd behavior in the system.
If there are no issues with the temperature sensors and the issue persists at minimum-to-POST then the system board will likely need to be replaced. The iDRAC/BMC is built into the system board.
All of the temperatures look good and there is no additional hardware in these servers at the moment. At first there was a Solarflare 10Gb NIC, but I removed that during troubleshooting.
I just can't understand how 3 out of 5 systems that I just bought are doing exactly the same thing.
Do you know if this is a very common failure on these servers? Is it unsurprising that this has happened to three of these servers that I just got?
Do you know if this is a very common failure on these servers?
High fan speeds within a system are usually not issues. It is usually the system working as designed. In the rare occurrence that a hardware fault is found to cause fans to run at high speeds it is typically caused by a faulty intrusion sensor or temperature probe.
Is it unsurprising that this has happened to three of these servers that I just got?
Not since the systems were purchased refurbished. Many issues either go unnoticed during testing or cannot be reproduced outside of production. High fan speeds that do not produce errors would not likely be caught in testing these systems.
Systems are usually returned and purchased in batches. It is likely that the three systems you are experiencing issues with were returned by the same person. For the same hardware issue to occur on three systems suggests that the same thing happened to each of them.
Daniel My
10 Elder
•
6.2K Posts
0
December 21st, 2017 12:00
Hello
The fans are controlled by the iDRAC. The iDRAC sets fans speeds based on installed hardware, ambient temperature, and other thermal probes.
I suggest checking the temperature probes to see if they are reading correctly. Also, remove or disconnect any hardware you have added. If you have installed unsupported hardware it can create odd behavior in the system.
If there are no issues with the temperature sensors and the issue persists at minimum-to-POST then the system board will likely need to be replaced. The iDRAC/BMC is built into the system board.
Thanks
qlafferty
6 Posts
0
December 21st, 2017 13:00
All of the temperatures look good and there is no additional hardware in these servers at the moment. At first there was a Solarflare 10Gb NIC, but I removed that during troubleshooting.
I just can't understand how 3 out of 5 systems that I just bought are doing exactly the same thing.
Do you know if this is a very common failure on these servers? Is it unsurprising that this has happened to three of these servers that I just got?
Daniel My
10 Elder
•
6.2K Posts
0
December 21st, 2017 13:00
High fan speeds within a system are usually not issues. It is usually the system working as designed. In the rare occurrence that a hardware fault is found to cause fans to run at high speeds it is typically caused by a faulty intrusion sensor or temperature probe.
Not since the systems were purchased refurbished. Many issues either go unnoticed during testing or cannot be reproduced outside of production. High fan speeds that do not produce errors would not likely be caught in testing these systems.
Systems are usually returned and purchased in batches. It is likely that the three systems you are experiencing issues with were returned by the same person. For the same hardware issue to occur on three systems suggests that the same thing happened to each of them.
Thanks
juaness
1 Message
0
October 6th, 2019 06:00
Hello Daniel
I have the same problem, 100% fans without errors.
Is this a problem if they are allowed to run 100%?
Is there a risk of burning or damaging the fans by running at 100% speed?
Thank you
JuanE