There are two ways of doing this.
1. Go to http://www.intel.com/p/en_US/support/server, locate the product you are using and download latest Production System Update package.
This package contains the following firmware: BIOS, BMC & FRUSDR
These instructions describe a complete system software update including BMC , FRUSDR , and BIOS. Follow the instructions exactly as written. A complete and successful update will take approximately 20 minutes.
Note: Please read the release note for information on how to run the update package.
2. Go to http://www.intel.com/p/en_US/support/server, locate the product you are using and download the latest One Flash Update Package for the Intel® Deployment Assistant
This update should only be used when running the Intel® Deployment Assistant CD.
The package contains: BIOS, BMC & FRUSDR
WARNING: It is very important to follow these instructions as they are written. Failure to update using the proper procedure may cause damage to your system. Review Release Notes for instructions.
In order to continuously improve our service, we would appreciate if you gave your feedback!