Technical Advisory TA 1047

This Technical Advisory describes an issue which may or may not affect the customer’s product

Intel Technical Advisory

TA-1047-1

5200 NE Elam Young Parkway

Hillsboro, OR 97124

January 26, 2014

Customers may experience system shutdown and then reboot in

power supply redundancy mode when inserting or removing any one

of the power supply units, or when system encounters unexpected

power supply unit failure.

Products Affected MM#

P4304CR2LFKN 916046

P4304CR2LFJN 916047

P4304CR2LFGN 916048

P4304CR2LFJNL 921563

P4216IP4LHKC 916057

P4216IP4LHJC 916059

P4208IP4LHGC 916062

P4308IP4LHKC 916063

P4308IP4LHJC 916064

P4308IP4LHGC 916065

P4308IP4LHJCL 921562

Description

Intel has identified a scenario that system may experience shutdown and reboot in power supply redundancy mode when

inserting or removing any one of the power supply units, or when system encounters unexpected failure of power supply

unit. Lab testing of AC cycling shows the failure is intermittent and the failure rate to be less than1%.

Intel has determined the Intel○

A Server System P4000IP4 and Workstation System P4000CR2 using power supply

redundancy function with serial number before workweek 02 of 2014 may be affected by this issue. Customers can

identify the workweek by referring to the following example.

The three digits after “UP” in the following figure mean workweek 02 of 2014.

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This Technical Advisory describes an issue which may or may not affect the customer’s product Intel Technical Advisory TA-1047-1 5200 NE Elam Young Parkway Hillsboro, OR 97124 January 26, 2014 Customers may experience system shutdown and then reboot in power supply redundancy mode when inserting or removing any one of the power supply units, or when system encounters unexpected power supply unit failure.
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Root Cause When inserting or removing of one power supply unit, or unexpected power down of any one of the power supply units occurs, the noise from P12V coupled to adjacent signal wires in the same cable bundle may cause the voltage of the remote sense signals to fluctuate beyond their voltage thresholds, and induce the failure of power supply redundancy mode, depending on cable assembly state.
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DIRECTORS, OFFICERS, AND EMPLOYEES OF EACH, HARMLESS AGAINST ALL CLAIMS COSTS, DAMAGES, AND EXPENSES AND REASONABLE ATTORNEYS' FEES ARISING OUT OF, DIRECTLY OR INDIRECTLY, ANY CLAIM OF PRODUCT LIABILITY, PERSONAL INJURY, OR DEATH ARISING IN ANY WAY OUT OF SUCH MISSION CRITICAL APPLICATION, WHETHER OR NOT INTEL OR ITS SUBCONTRACTOR WAS NEGLIGENT IN THE DESIGN, MANUFACTURE, OR WARNING OF THE INTEL PRODUCT OR ANY OF ITS PARTS.