Control or reduce fan speed of Dell R820
The fan speed settings exposed in the iDRAC interface may not be enough to quiet the fans to an acceptable level.
Install Dell OpenManage Server Administrator on the server and then run the ipmitool utility to adjust the fan speeds.
The ipmitool should be located in the following directory after you install DOMSA:
C:\Program Files (x86)\Dell\SysMgt\bmc
Launch a command prompt on the server and navigate to the directory above. Then run the following commands, substituting the ip address (-H), username (-U), and password (-P) of your iDRAC:
To enable remote fan control: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x01 0x00
To set the fan to 20%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x14
To set the fan to 25%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x19
To set the fan to 30%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x1e
To set the fan to 35%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x23
To set the fan to 40%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x28
To set the fan to 45%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x2D
To set the fan to 50%: ipmitool -I lanplus -H 192.168.1.240 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x32
Temuujin CC
Updated on September 18, 2022Comments
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Temuujin CC almost 2 years
I recently bought Dell R820 from Amazon. It has 192gb of RAM, 4x Xeon CPUs but Dell Idrac is not working anymore after update firmware from OS. Fan's go full blast and it's very noisy. I tried all fixes from dell's web site suggestions. But no avail. Is there a way to reduce fan speed without iDrac or lifecycle?
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Michael Hampton almost 4 yearsThe first thing to do is to fix iDRAC.
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