Lenovo System x3550 M5 Installation And Service Manual page 22

• For 1500W Platinum power supply
– Input voltage high range:
– Minimum: 200 V ac
– Maximum: 240 V ac
• For 900W high-efficiency power supply
– Input voltage high range:
– Minimum: -60 V dc
– Maximum: -48 V dc
• Input kilovolt-amperes (kVA), approximately:
– Minimum: 0.179 kVA
– Maximum: 1.188 kVA
Notes:
– Power consumption and heat output vary depending on the number and type of optional features
installed and the power-management optional features in use.
– The noise emission level stated is the declared (upper limit) sound power level, in bels, for a
random sample of machines. All measurements are made in accordance with ISO 7779 and
reported in conformance with ISO 9296. Actual sound-pressure levels in a given location might
exceed the average values stated because of room reflections and other nearby noise sources.
The noise emission level stated in the declared (upper limit) sound-power level, in bels, for a
random sample of system.
Hot-swap fans:
• One microprocessor: five dual-motor hot-swap fans 1, 2, 3, 5, 7
• Two microprocessors: seven dual-motor hot-swap fans 1, 2, 3, 5, 6, 7, 8
Note: For 3.5-inch-drive models, your server has no fan 4 slot. For 2.5-inch-drive models, the fan 4
slot is always occupied by a fan filler.
Power supply:
• Up to two hot-swap power supplies for redundancy support
– 550-watt ac 80 PLUS Platinum
– 750-watt ac 80 PLUS Platinum
– 750-watt ac 80 PLUS Titanium (200-240V)
– 900-watt ac 80 PLUS Platinum
– 900-watt high efficiency -48 V DC
– 1500-watt ac 80 PLUS Platinum
Note: Power supplies in the server must be with the same power rating or wattage.
Acoustical noise emissions:
• Sound power, idling: 6.5 bels maximum
• Sound power, operating: 6.5 bels maximum
Note: The PCIe options supported in this system vary greatly in function, power draw, and required
cooling. Any increase in cooling required by these options will result in increased fan speed and
produced sound power level. The actual sound pressure levels measured in your installation depend
upon a variety of factors, including the number of racks in the installation; the size, materials, and
configuration of the room; the noise levels from other equipment; the room ambient temperature and
pressure, and employees' location in relation to the equipment.
Heat output:
Approximate heat output:
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Lenovo System x3550 M5 Installation and Service Guide