query temps and speeds:

ipmitool -I lanplus -H 172.16.0.18 -U root -P calvin sensor reading "Inlet Temp"\
"Exhaust Temp" "Fan1" "Fan2" "Fan3" "Fan4" "Fan5" "Fan6"

check fan speed profile:

ipmitool -I lanplus -H 172.16.0.18 -U root -P calvin raw 0x30 0xce 0x01 0x16 0x05 0x00 0x00 0x00

stock:

 16 05 00 00 00 05 00 00 00 00

(loud)

adjusted for non-dell cards:

 16 05 00 00 00 05 00 01 00 00

(quiet)

disable non-dell cooling profile:

ipmitool -I lanplus -H 172.16.0.18 -U root -P calvin raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x01 0x00 0x00 

disable automatic control:

ipmitool -I lanplus -H 172.16.0.18 -U root -P calvin raw 0x30 0x30 0x01 0x00

fan speeds? 0x00 - off entirely? 0x64 - 100% aka 17,500 RPM

3700RPM: raw 0x30 0x30 0x02 0xff 0x0A

10000RPM: raw 0x30 0x30 0x02 0xff 0x35

Base seems to be about 3500RPM.

query temps and speeds:

ipmitool -I lanplus -H 172.16.0.91 -U root -P calvin sensor reading "Ambient Temp" "FAN 1 RPM" "FAN 2 RPM" "FAN 3 RPM" "FAN 4 RPM" "FAN 5 RPM"

enable automatic fan control:

ipmitool -I lanplus -H 172.16.0.91 -U root -P calvin raw 0x30 0x30 0x01 0x01

disable automatic fan control:

ipmitool -I lanplus -H 172.16.0.91 -U root -P calvin raw 0x30 0x30 0x01 0x00

set fans to 2400RPM:

ipmitool -I lanplus -H 172.16.0.91 -U root -P calvin raw 0x30 0x30 0x02 0xff 0x0A