The latter can be necessary, because as soon as a critical threshold is triggered for a sensor, the baseband management controller (BMC) spins the fans up to full speed (as a safety measure).So if your changes don’t have the desired effect and the fans run at full speed instead, then check the IPMI system event log (SEL) for critical events (see below).
For “other” chassis, Intel also provides three generic SDRs called slow, medium and fast ramp.
Here are the steps to choose which temperature sensor controls the fans, and how to modify the fan speed and temperature points of the “slow ramp” curve. Although the format follows the IPMI specification, the relevant entries are undocumented OEM records.
================================================================================ NEC Express5800/E120d-1 BMC firmware 00.09, SDR(Sensor Data Record) 00.10 (Online) ================================================================================ Software name : NEC Express5800/E120d-1 BMC firmware and SDR update module for Online Models : NEC Express5800/E120d-1 Operating System : This software supports the following OS - Microsoft(R) Windows Server(R) 2008 - Microsoft(R) Windows Server(R) 2008 R2 - Microsoft(R) Windows Server(R) 2012 - VMware ESX4 Target Users : See [Target Users for Update] below Type : BMC firmware ================================================================================ [ About the software ] This BMC Firmwaer and SDR update module (hereinafter called "the software") suppots the following functional enhancement in the NEC Express5800/E120d-1 models: - Fixed the issue that the retrying of SNMP alerting is only done to Alert Receiver 1 in case Alert Progress setting is configured as One Alert Receiver.
- Fixed the issue that the encryption does not work on JRE7 environment even when Encryption of Remote KVM console in System Operation Configuration is enabled. - Fixed the issue that it fails to restore the data of ECO Configuration which is backed up the initialized data.
Should your system malfunctions or is powered off due to an unplanned event during update (for example, power blackout or cutoff, lightning, and noise), the system may be damaged and fails to operate normally.
In this case, any remedial measures shall be taken at your expense.
Contrary to typical desktop motherboards, the BIOS of this server board doesn’t provide functionality to set a curve for temperature versus fan speed.
Intel expects its customers to house the board inside an approved chassis, and provides IPMI sensor data records (SDRs) with pre-defined curves for those chassis.
- This software does not support virtualization environment.