Reference Guide

TDP Watts
3.5-inch chassis 2.5-inch chassis
No-BP
Chassis
12x HDDs 8x HDDs 4x HDDs 24x HDDs 16x HDDs 8x HDDs 4x HDDs N/A
105 W Not
supported
Not
supported
Not
supported
25 25 25 25 30
85 W Not
supported
Not
supported
Not
supported
30 30 30 30 >35
70 W Not
supported
Not
supported
Not
supported
>35 >35 >35 >35 >35
Expanded operating temperature specifications
Table 14. Expanded operating temperature
Expanded operating temperature Specifications
Continuous operation 5°C–40°C at 5% to 85% RH with maximum 29°C dew point.
NOTE: Outside the standard operating temperature
(10°C–35°C), the system can operate continuously in
temperatures as low as 5°C and as high as 40°C.
For temperatures between 35°C-40°C, derate maximum allowable
temperature by 1°C per 175 m above 950 m (1°F per 319 ft).
≤ 1% of annual operating hours –5°C–45°C at 5% to 90% RH with maximum 29°C dew point.
NOTE: Outside the standard operating temperature
(10°C–35°C), the system can operate down to –
5°C-45°C for a maximum of 1% of its annual operating
hours.
For temperatures between 40°C-45°C, derate maximum allowable
temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported in the
System Event Log.
Operating temperature derating specifications
Table 15. Operating temperature
Operating temperature derating Specifications
< 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft)
above 950 meters (3,117 ft)
35°C–40°C (95°F–104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft)
above 950 meters (3,117 ft)
> 45°C (113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft)
above 950 meters (3,117 ft)
16 Technical specifications