Site Preparation Guide, Fourth Edition - HP Integrity rx8640, HP 9000 rp8440 Servers

the resulting heat from the cabinet. The fans within the power supply will operate at full speed
during standby.
Typical HP Integrity rx8640 Server Power Dissipation and Cooling
Table 2-10 provides calculations for the rx8640 configurations as described in the table.
Table 2-10 Typical HP Integrity rx8640 Server Configurations
Typical
Cooling
Typical
Power
Bulk Power
Supplies
Core
I/O
Hard Disk
Drives
DVDsPCI Cards
(assumes 10W
each)
Memory
per Cell
Board
Cell
Board
BTU/hrWattsQtyQtyQtyQtyQtyGBytesQty
132573883624216324
123833627624216164
1167234196220884
93852749424216322
8402246142208162
818323974220882
646318933110881
The air-conditioning data in Table 2-10 are derived using the following equations.
• Watts x (0.860) = kcal/hour
• Watts x (3.414) = Btu/hour
• BTU/hour divided by 12,000 = tons of refrigeration required
NOTE: When determining power requirements, you must consider any peripheral equipment
that will be installed during initial installation or as a later update. Refer to the applicable
documentation for such devices to determine the power and air-conditioning that is required to
support these devices.
Typical HP 9000 rp8440 Server Power Dissipation and Cooling
Table 2-11 provides calculations for the rp8440 configurations as described in the table.
Table 2-11 Typical HP 9000 rp8440 Server Configurations
Typical
Cooling
Typical
Power
Bulk Power
Supplies
Core
I/O
Hard Disk
Drives
DVDsPCI Cards
(assumes 10W
each)
Memory
per Cell
Board
Cell
Board
BTU/hrWattsQtyQtyQtyQtyQtyGBytesQty
129363789624216324
120623533624216164
1135233256220884
92252702424216322
8241241442208162
802323504220882
646318933110881
Environmental Specifications 39