Lenovo ThinkServer RD650 - Page 30

ThefollowingtableprovidesinformationabouttheASHRAEclassA2,classA3,andclassA4specifications.
Table1.ASHRAEclassA2,classA3,andclassA4specifications
ASHRAEclassA2ASHRAEclassA3ASHRAEclassA4
Airtemperature
(operating)*
10°Cto35°C(50°Fto95°F)5°Cto40°C(41°Fto104°F)5°Cto45°C(41°Fto113°F)
Airtemperature
(storage)
-40°Cto60°C(-40°Fto
140°F)inoriginalshipping
package
-40°Cto60°C(-40°Fto
140°F)inoriginalshipping
package
-40°Cto60°C(-40°Fto
140°F)inoriginalshipping
package
Humidity(operating)
8%to80%
(non-condensing)
8%to85%
(non-condensing)
8%to90%
(non-condensing)
Humidity(storage)
8%to90%
(non-condensing)
8%to90%
(non-condensing)
8%to90%
(non-condensing)
Altitude
0–3048m(0–10000ft)inanunpressurizedenvironment
Note:Whenthealtitudeexceeds900m(2953ft),thedefinedmaximumdry-bulb
temperatureforoperationbecomesadependentvariable.
A2:Thetemperaturevaluedecreasesby1°C(33.8°F)withevery300m(984ft)of
altitudeincrease.
A3:Thetemperaturevaluedecreasesby1°C(33.8°F)withevery175m(574ft)of
altitudeincrease.
A4:Thetemperaturevaluedecreasesby1°C(33.8°F)withevery125m(410ft)of
altitudeincrease.
Notes:
•*Ifyouinstalla6TBor8TB3.5-inchHDDinaserverwitheitherofthefollowingconfigurations,theserver
supportsamaximumoperatingtemperatureof40°C(104°F)orsupports30°C(86°F)whenafanfails:
–Onemicroprocessor,twelve3.5-inchdrives
–Onemicroprocessor,six2.5-inchdrivesandnine3.5-inchdrives
•*Ifyouinstalla64GBDIMMinaserverwitheitherofthefollowingconfigurations,theserversupportsa
maximumoperatingtemperatureof40°C(104°F):
–Twelve3.5-inchdrives
–Six2.5-inchdrivesandnine3.5-inchdrives
Electricalinput
•Universalinput:
–Lowrange:
Minimum:100Vac
Maximum:127Vac
Inputfrequencyrange:50–60Hz
–Highrange:
Minimum:200Vac
Maximum:240Vac
Inputfrequencyrange:50–60Hz
14ThinkServerRD650UserGuideandHardwareMaintenanceManual