System fan
System fan
• Supported fan types:
– Standard fan 4056 (21000 RPM)
– Performance fan 4056 (28000 RPM)
• Fan redundancy: N+1 redundancy, one redundant fan rotor
– One processor: six hot-swap dual-rotor system fans (one redundant fan rotor)
– Two processors: eight hot-swap dual-rotor system fans (one redundant fan rotor)
Note:
The redundant cooling by the fans in the server enables continued operation if one rotor of a fan fails.
If there is an OCP module installed, when the system is powered off but still plugged in to AC power, system fan 1 and
fan 2 will continue to spin at a much lower speed. This is the system design to provide proper cooling for the OCP
module.
Electrical input
Electrical input
One or two hot-swap power supply units for redundancy support:
Table 1. Electrical input for power supply units
Power supply 100–127 V ac 200–240 V ac 240 V dc -48 V dc
750-watt 80 PLUS Platinum
√ √ √
1100-watt 80 PLUS
Platinum
√ √ √
1800-watt 80 PLUS
Platinum
√ √
750-watt 80 PLUS Titanium
√ √
1100-watt 80 PLUS
Titanium
√ √
1800-watt 80 PLUS
Titanium
√ √
1100-watt -48 V DC
√
CAUTION:
• 240 V dc input is supported in Chinese Mainland ONLY.
• Power supply with 240 V dc input cannot support hot plugging power cord function. Before removing the
power supply with dc input, please turn off server or disconnect dc power sources at the breaker panel or by
turning off the power source. Then, remove the power cord.
Chapter 1. Introduction 9
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