Lenovo System x3750 M4 Installation And Service Manual page 214

Important: Some cluster solutions require specific code levels or coordinated code updates. If the device
is part of a cluster solution, verify that the latest level of code is supported for the cluster solution before
you update the code.
If the server firmware has become corrupted, such as from a power failure during an update, you can
recover the server firmware in either of two ways:
• In-band method: Recover the server firmware, using either the UEFI boot recovery jumper (Automated
Boot Recovery) and a server Firmware Update Package Service Pack.
• Out-of-band method: Use the IMM2 web interface to update the firmware, using the latest server
firmware update package.
Notes: You can obtain a server update package from one of the following sources:
• Download the server firmware update from the World Wide Web.
• Contact your service representative.
To download the server firmware update package from the World Wide Web, go to
http://www.ibm.com/supportportal/.
The flash memory of the server consists of a primary bank and a backup bank. You must maintain a bootable
UEFI firmware image in the backup bank. If the server firmware in the primary bank becomes corrupted, you
can either manually boot the backup bank with the UEFI boot recovery jumper (J71), or in the case of image
corruption, this will occur automatically with the Automated Boot Recovery function.
In-band manual recovery method
To recover the server firmware and restore the server operation to the primary bank, complete the following
steps:
Step 1. Turn off the server, and disconnect all power cords and external cables.
Step 2. Remove the server cover. See "Removing the server top cover" on page 216 for more information.
Step 3. Locate the UEFI boot recovery jumper (J71) on the system board.
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Lenovo System x3750 M4 Installation and Service Guide