Noise levels (the declared A-weighed sound power level of the server)See Acoustical noise emissions.Test voltage and frequency:230V / 50 Hz or 60 HzTotal harmonic distortion of the electricity supply system:The maximum harmonic content of the input voltage waveformwill be equal or less than 2%. The qualification is compliant withEN 61000-3-2.Information and documentation on the instrumentation setup andcircuits used for electrical testing:ENERGY STAR Test Method for servers; ECOVA Generalized TestProtocol for Calculating the Energy Efficiency of Internal Ac-Dcand Dc-Dc Power Supplies.Measurement methodology used to determine information in thisdocument:ENERGY STAR Servers Version 2.0 Program Requirements; ECOVAGeneralized Test Protocol for Calculating the Energy Efficiency ofInternal Ac-Dc and Dc-Dc Power Supplies.x3850 X5 Memory Reliability Accessibility and Serviceability (RAS)FeaturesThis topic provides information on the x3850 X5 Memory Reliability, Accessibility,and Serviceability (RAS) features.The following information is a summary of the x3850 X5 Memory Reliability,Accessibility, and Serviceability (RAS) features.Table 3. x3850 X5 Memory RAS FeaturesNodes HemisphereMode(DIMMconfigurationmatchbetweenboth CPUmemorycontrollers)(Note 1)MemoryMirroring(Note 2)DIMMSparing (2DIMMsspare permemorycard) (Note3)DDDCSparing (1 x4DRAM spareper DIMMpair) (Note 4)RBS Sparing(1 x4 DRAMspare perDIMM pair)(Note 5)1 node Auto enabledwhenconditionsmet on allinstalledCPUs.CPUIntrasocketenabled byUEFI setting.Enabled byUEFI settingwhenconditionsmet.Auto enabledfor x4memorycontrolled byWestmere-EXCPUs.Notsupported1 node andMAX5Auto enabledwhenconditionsmet on allinstalledCPUs; alwaysenabled onMAX5CPUIntrasocketand MAX5mirroringenabled byUEFI settingEnabled byUEFI settingwhenconditionsmet.Unsupportedin MAX5memoryAuto enabledfor x4memorycontrolled byWestmere-EXCPUsAuto enabledin MAX5with x4DIMMs10 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Problem Determination and Service Guide
