IBM 71453RU manual What the memory expansion module offers, Fans, Environment Heat output

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.

Table 4. MAX5 expansion module features and operating specifications (continued)

Acoustical noise emissions: For maximum system configurations (32 DIMMs installed)

vSound power (idling): 6.2 bels

vSound power (operating): 6.2 bels

vSound pressure (idling): 48 dBA

vSound pressure (operating): 48 dBA

Size:

vHeight: 4.4 cm (1.73 in.)

vDepth: 72.4 cm (28.5 in.)

vWidth: 48.3 cm (19.0 in.)

vWeight: approximately 12.8 kg (28.2 lb) for a standard unit; when fully configured, 15.4 kg (33.9 lb)

Fans:

vFive hot-swap 40 mm fans

Environment: Heat output

vAir temperature:

– Enclosure on: 10° to 35°C (50° to Approximate heat:

		95°F); altitude: 0 to 914.4 m	v Minimum configuration: 314 Btu
		(3000 ft). Decreased system	per hour (92 watts)
		temperature by 0.75° for every	v Maximum configuration 2048 Btu
		1000 ft. increase in altitude.	per hour (600 watts)
	– Enclosure off: 5° to 45°C (41° to		Electrical input:
		113`°F)
			v Sine-wave input (50 - 60 Hz)
	–	Shipment: -40°C to +60°C (-40°F
		to 140°F	required
v			v Input voltage low range:
	Humidity:
			–	Minimum: 90 V ac
	–	Enclosure on: 20% to 80%;
			–	Maximum: 136 V ac
		maximum dew point: 21°C
			v Input voltage high range:
		(70°F)
	– Enclosure off: 8% to 80%;		–	Minimum: 198 V ac
			–	Maximum: 264 V ac
		maximum dew point: 27°C
			v Approximate input
		(80°F)
	–	Shipment: 5% to 100%	kilovolt-amperes (kVA):
v			–	Minimum: 0.1 kVA
	Particulate contamination:
			–	Maximum: 0.6 kVA

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 123.

What the memory expansion module offers

The memory expansion module provides several features for easy operation, including the following features:

vReplaceable components

The major replaceable components in the memory expansion module are dual inline memory modules (DIMMs), fans, and power supplies. See “Memory expansion module components” on page 81 for the components that the expansion module supports.

24IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Installation and User's Guide