IBM X3950 X5 Problem Determination And Service Manual page 47

Table 10. Memory expansion module features and operating specifications (continued)
Acoustical noise emissions: For
maximum system configurations (32
DIMMs installed)
v Sound power (idling): 6.2 bels
v Sound power (operating): 6.8 bels
Size:
v Height: 4.4 cm (1.73 in.)
v Depth: 72.4 cm (28.5 in.)
v Width: 48.3 cm (19.0 in.)
v Weight: approximately 12.8 kg
(28.2 lb) for a standard unit; when
fully configured, 15.4 kg (33.9 lb)
Environment:
v Air temperature:
– Enclosure on: 10° to 35°C (50° to
95°F); altitude: 0 to 914.4 m
(3000 ft). Decreased system
temperature by 0.75° for every
1000 ft increase in altitude.
– Enclosure off: 5° to 45°C (41° to
113`°F)
– Shipment: -40°C to +60°C (-40°F
to 140°F
v Humidity:
– Enclosure on: 20% to 80%;
maximum dew point: 21°C
(70°F)
– Enclosure off: 8% to 80%;
maximum dew point: 27°C
(80°F)
– Shipment: 5% to 100%
v Particulate contamination:
Attention: 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 1033.
Heat output:
Approximate heat output:
v Minimum configuration: 314 Btu
per hour (92 watts)
v Maximum configuration 2048 Btu
per hour (600 watts)
Electrical input:
v Sine-wave input (50 - 60 Hz)
required
v Input voltage low range:
– Minimum: 90 V ac
– Maximum: 136 V ac
v Input voltage high range:
– Minimum: 198 V ac
– Maximum: 264 V ac
v Approximate input
kilovolt-amperes (kVA):
– Minimum: 0.1 kVA
– Maximum: 0.6 kVA
Note:
1. Power consumption and heat
output vary depending on the
number and type of optional
features that are installed and the
power-management optional
features that are in use.
2. These levels were measured in
controlled acoustical
environments according to the
procedures specified by the
American National Standards
Institute (ANSI) S12.10 and ISO
7779 and are reported in
accordance with ISO 9296. Actual
sound-pressure levels in a given
location might exceed the average
stated values because of room
reflections and other nearby noise
sources. The declared
sound-power levels indicate an
upper limit, below which a large
number of computers will
operate.
Chapter 2. Introduction
31