I have a 64GB kit of Micron MT36HTF1G72FZ-667C1D4 RAM installed on Dell PowerEdge 1950 Gen II and I have an issue where the BMC is spinning the cooling fans at over 8k rpm for no reason as the chassis, cpus and ram are in fact cool.
user@server:~$ sudo ipmitool sensor | grep Temp Temp | na | | na | na | na | na | 85.000 | 90.000 | na Temp | na | | na | na | na | na | 85.000 | 90.000 | na Temp | na | | na | na | na | na | na | na | na Temp | na | | na | na | na | na | na | na | na Ambient Temp | 19.000 | degrees C | ok | na | 3.000 | 8.000 | 42.000 | 47.000 | na CPU Temp Interf | na | discrete | na | na | na | na | na | na | na user@server:~$ sudo ipmitool sensor | grep FAN FAN MOD 1A RPM | 9375.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 1B RPM | 9225.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 1C RPM | 6075.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 1D RPM | 6150.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 2A RPM | 9675.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 2B RPM | 9900.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 2C RPM | 5925.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 2D RPM | 6225.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 3A RPM | 10425.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 3B RPM | 9675.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 3C RPM | 6450.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 3D RPM | 6375.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 4A RPM | 10050.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 4B RPM | 10800.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 4C RPM | 6525.000 | RPM | ok | na | 1575.000 | na | na | na | na FAN MOD 4D RPM | 6600.000 | RPM | ok | na | 1575.000 | na | na | na | na user@server:~$ sudo sensors coretemp-isa-0000 Adapter: ISA adapter Core 0: +35.0°C (high = +86.0°C, crit = +100.0°C) Core 1: +31.0°C (high = +86.0°C, crit = +100.0°C) Core 2: +31.0°C (high = +86.0°C, crit = +100.0°C) Core 3: +30.0°C (high = +86.0°C, crit = +100.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 0: +32.0°C (high = +86.0°C, crit = +100.0°C) Core 1: +33.0°C (high = +86.0°C, crit = +100.0°C) Core 2: +33.0°C (high = +86.0°C, crit = +100.0°C) Core 3: +34.0°C (high = +86.0°C, crit = +100.0°C) i5k_amb-isa-0000 Adapter: ISA adapter Ch. 0 DIMM 0: +46.0°C (low = +105.0°C, high = +120.0°C) Ch. 1 DIMM 0: +44.0°C (low = +105.0°C, high = +120.0°C) Ch. 2 DIMM 0: +46.0°C (low = +105.0°C, high = +120.0°C) Ch. 3 DIMM 0: +45.0°C (low = +105.0°C, high = +120.0°C)
I have researched the issue and most likely the BMC is not reconginsing the brand of the ram and to prevent damage, it spins the much faster.
Is there specific firmware that I need to install. As far as the BMC firmware goes, its up-to-date.