Lenovo System x3550 M4 Installation And Service Manual page 21

Table 1. Server features and specifications (continued)
Hot-swap fans:
• One microprocessor: 4 dual-motor
hot-swap fans.
• Two microprocessors: 6
dual-motor hot-swap fans.
Power supply:
• Up to two hot-swap power
supplies for redundancy support
– 550-watt ac
– 750-watt ac
– 750-watt dc
Note: Power supplies in the server
must be with the same power rating
or wattage.
Environment: compliant with
ASHRAE class A3 specifications.
Server on:
• Temperature:
– 5°C to 40°C (41°F to 104°F)
– Altitude: 0 to 950 m (3,117 ft);
decrease the maximum system
temperature by 1°C for every
175-m increase in altitude.
• Maximum altitude: 3,050 m
(10,000 ft), 5°C to 28°C (41°F to
82.4°F)
• Humidity:
– Non-condensing: -12°C dew
point (10.4°F)
– Relative humidity: 8% to 85%
• Maximum dew point: 24°C (75.2°F)
• Maximum rate of temperature
change:
– Tape drives: 5°C/hr (41°F/hr)
– Hard disk drives: 20°C/hr
(68°F/hr)
Server off:
• Six network ports (four 1 Gb
Ethernet ports on the system
board and two additional ports
when the optional Dual-Port 10 Gb
Network Adapter is installed)
• One System Management
1 Gb Ethernet port on the
rear connected to a systems
management network. This
system management connector is
dedicated to the IMM2 functions.
• One serial port
Particulate contamination: airborne
particulates and reactive gases
acting alone or in combination
with other environmental factors
such as humidity or temperature
might pose a risk to the server.
For information about the limits
for particulates and gases, see
"Particulate contamination" on page
979.
Attention:
• Design to ASHRAE Class A3,
ambient of 40°C, with relaxed
support:
– Support cloud like workload
with no performance
degradation acceptable
(Turbo-Off)
– Under no circumstance, can
any combination of worst case
workload and configuration
result in system shutdown or
design exposure at 40°C
• Specific microprocessors
supported environment:
– Microprocessor Intel Xeon
E5-2690, 135W:
– RAID 5/50 (512 MB Cache) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 (512 MB Flash) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 (1 GB Flash) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 and SED (Zero
Cache)
• A ServeRAID M5120 SAS/SATA
adapter that provides RAID 0, 1,
and 10. Optional upgrade:
– RAID 5/50 (512 MB Cache) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 (512 MB Flash) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 (1 GB Flash) with
optional FoD RAID 6/60 and
SED upgrade
– RAID 5/50 and SED (Zero
Cache)
Heat output:
Approximate heat output:
• Minimum configuration: 461 Btu
per hour (AC 135 watts)
• Maximum configuration: 3378 Btu
per hour (AC 990 watts)
Electrical input:
• Sine-wave input (50 - 60 Hz)
required
• Input voltage low range:
– Minimum: 100 V ac
– Maximum: 127 V ac
• Input voltage high range:
– Minimum: 200 V ac
– Maximum: 240 V ac
• Input kilovolt-amperes (kVA),
approximately:
– Minimum: 0.14 kVA
– Maximum: 0.993 kVA
Notes:
1. Power consumption and heat
output vary depending on the
number and type of optional
features installed and the
power-management optional
features in use.
.
Chapter 1 The System x3550 M4 server
7