Server Controls, Leds, And Connectors; Front View - IBM System x3650 M3 4255 Service Manual

Table 1. Features and specifications (continued)
Electrical input with hot-swap ac power
supplies:
v Sine-wave input (47 - 63 Hz) required
v Input voltage range automatically
selected
v Input voltage low range:
– Minimum: 100 V ac
– Maximum: 127 V ac
v Input voltage high range:
– Minimum: 200 V ac
– Maximum: 240 V ac
v Input kilovolt-amperes (kVA)
approximately:
– Minimum: 0.090 kVA
– Maximum: 0.700 kVA

Server controls, LEDs, and connectors

This section describes the controls, light-emitting diodes (LEDs), and connectors.

Front view

The following illustration shows the controls, connectors, and hard disk drive bays
on the front of the server.
Hard disk drive activity LED: Each hard disk drive has an activity LED. When this
LED is flashing, it indicates that the drive is in use.
Hard disk drive status LED: Each hard disk drive has a status LED. When this
LED is lit, it indicates that the drive has failed. When this LED is flashing slowly
(one flash per second), it indicates that the drive is being rebuilt as part of a RAID
Environment:
v Air temperature:
– Server on: 10°C to 35°C (50.0°F to
95.0°F); altitude: 0 to 914.4 m (3000
ft). Decrease system temperature
by 1°C for every 1000-foot increase
in altitude.
– Server off: 5°C to 45°C (41.0°F to
113.0°F); maximum altitude: 3048 m
(10000 ft)
– Shipment: -40°C to +60°C (-40°F to
140°F); maximum altitude: 3048 m
(10000 ft)
v Humidity:
– Server on: 20% to 80%; maximum
dew point: 21°C; maximum rate of
change 5°C per hour.
– Server off: 8% to 80%; maximum
dew point: 27°C
– Shipment: 5% to 100%
v Particulate contamination:
Attention:
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
283.
Hard disk drive
activity LED (green)
Hard disk drive
status LED (amber)
Rack
release
latch
Bay 0 Hard disk
drive bays
Hot-swap fans:
Three - provide redundant cooling.
Power supply:
v Up to two hot-swap power supplies for
Note: You cannot mix 460-watt and
675-watt power supplies, or high-efficiency
and non-high-efficiency power supplies, or
ac and dc power supplies in the server.
Acoustical noise emissions:
v Declared sound power, idle: 6.3 bel
v Declared sound power, operating: 6.5 bel
Heat output:
Airborne particulates and
Approximate heat output:
v Minimum configuration: 662 Btu per hour
v Maximum configuration: 2302 Btu per
Video USB 1
connector connector
Bay 15 CD/DVD drive
activity LED
redundancy support
– 460-watt ac
– 675-watt ac
– 675-watt high-efficiency ac
– 675-watt dc
(194 watts)
hour (675 watts)
USB 2 Operator
connector information panel
Rack
release
latch
CD/DVD CD/DVD drive
eject button (optical drive)
Chapter 2. Introduction
9