Technical Advisory 1050

Corrective Action / Resolution

Intel has released new power supply firmware (ver 85.**.100) that will prevent the power race condition from occurring.

• Customers that decide they want to update their systems to address this issue can do so by updating the

system BMC Firmware to revision 01.20.5793 or later which incorporates the new power supply firmware. The

power supply firmware is updated automatically with a BMC firmware update. The BMC firmware can be

downloaded from the following Intel web site after March 16, 2014.

http://downloadcenter.intel.com

• Intel will begin shipping systems with the updated 750W power supplies as they become available. 750W

power supplies with updated firmware will have a part number of E98791-010 or later. Customers will be

notified of the power supply change through the standard Product Change Notification (PCN) process.

Workarounds

Because Intel ships all server systems configured with the power supply cold redundancy feature enabled, customers

may choose to perform the BMC firmware updated described above, or as a more immediate precautionary step, they

may choose to manually disable the power supply cold redundancy feature using the either of the following methods.

1.) Using Intel’s EFI, MS-Windows, or Linux based SYSCFG utility, issue the following command:

syscfg /cr disable

Intel’s SYSCFG Utility can be downloaded from Intel’s download center website:

https://downloadcenter.intel.com

2.) Using the standard Linux or MS-Windows* based open source IPMITool, issue the following IPMI command:

Ipmitool raw 0x30 0x2d 0x01 0x00

Either method described above will disable the cold redundancy feature across system power cycles.

Please contact your Intel Sales Representative if you require more specific information about this issue.

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Intel Corporation