Noise levels (the declared A-weighed sound power level of the server)
See Acoustical noise emissions.
Test voltage and frequency:
230V/50Hzor60Hz
Total harmonic distortion of the electricity supply system:
The maximum harmonic content of the input voltage waveform
will be equal or less than 2%. The qualification is compliant with
EN 61000-3-2.
Information and documentation on the instrumentation setup and
circuits used for electrical testing:
ENERGY STAR Test Method for servers; ECOVA Generalized Test
Protocol for Calculating the Energy Efficiency of Internal Ac-Dc
and Dc-Dc Power Supplies.
Measurement methodology used to determine information in this
document:
ENERGY STAR Servers Version 2.0 Program Requirements; ECOVA
Generalized Test Protocol for Calculating the Energy Efficiency of
Internal Ac-Dc and Dc-Dc Power Supplies.
x3850 X5 Memory Reliability Accessibility and Serviceability (RAS)
Features
This 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 Features
Nodes Hemisphere
Mode
(DIMM
configuration
match
between
both CPU
memory
controllers)
(Note 1)
Memory
Mirroring
(Note 2)
DIMM
Sparing (2
DIMMs
spare per
memory
card) (Note
3)
DDDC
Sparing (1 x4
DRAM spare
per DIMM
pair) (Note 4)
RBS Sparing
(1 x4 DRAM
spare per
DIMM pair)
(Note 5)
1 node Auto enabled
when
conditions
met on all
installed
CPUs.
CPU
Intrasocket
enabled by
UEFI setting.
Enabled by
UEFI setting
when
conditions
met.
Auto enabled
for x4
memory
controlled by
Westmere-EX
CPUs.
Not
supported
1 node and
MAX5
Auto enabled
when
conditions
met on all
installed
CPUs; always
enabled on
MAX5
CPU
Intrasocket
and MAX5
mirroring
enabled by
UEFI setting
Enabled by
UEFI setting
when
conditions
met.
Unsupported
in MAX5
memory
Auto enabled
for x4
memory
controlled by
Westmere-EX
CPUs
Auto enabled
in MAX5
with x4
DIMMs
10 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Problem Determination and Service Guide