Technical Product Specification

3BPlatform Management Intel® Server Board S5520UR and S5520URT TPS
Intel order number E44031-012 Revision 1.9
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4.3.2 Management Engine Firmware Update
The Management Engine (ME) Firmware (FW) provides a set of IPMI OEM commands for
performing the FW update.
An update utility running on the host uses IPMI bridging functionality
to send these commands to the ME through the Integrated BMC over the Integrated BMC/IPMB
link.
On Intel
®
server platforms, the ME FW uses a single operational image with a recovery image.
In order to upgrade an operational image, the system must be booted from a recovery image.
The recovery image only provides the basic functionality that is required to perform the update.
Other SPS features are therefore not functional when the update is in progress.
4.3.3 Management Engine Interaction
Management Engine-Integrated BMC interactions include the following:
 Integrated BMC stores sensor data records for ME-owned sensors.
 Integrated BMC participates in ME firmware update.
 Integrated BMC initializes ME-owned sensors based on SDRs.
 Integrated BMC receives platform event messages sent by the ME.
 Integrated BMC notifies ME of POST completion.
 Integrated BMC may be queried by the ME for inlet temperature readings.
Integrated BMC utilizes the ICH10R fan tachs through the ME.