hp ProLiant DL320 generation 2 server high-density deployment technical white paper 6
The easiest way to calculate the thermal dissipation for the entire rack is to add the input power
requirements for all the servers and other units populated in a rack, and then multiply the total
input power by 3.41.
The “measured input power” section explains more on how adding or removing of an optional
subsystem component affects the input power and thermal calculations.
measured input power
Table 3 lists the measured input power of the server with varying subsystem components, to
illustrate the effects of adding or removing optional components.
Table 3. Measured Input Power for Selected Server Configurations
Configuration
Number
ProLiant DL320 Generation 2 Server Configuration
Power Input
Typical/Peak
1 1x2.26 GHz, 1x128 MB, 1xATA (base-line) 143 W/158 W
2 1x2.26 GHz, 1x128 MB, + 2x18.2 GB SCSI 148 W/168 W
3 1x2.26 GHz, 1x128 MB, 4 GB + 2xATA 165 W/191 W
4 1x2.26 GHz, 1x128 MB, 4 GB + 2x36 GB SCSI 188 W/212 W
5 1x2.26 GHz, 1x128 MB, 4 GB + 2x36 GB SCSI + 5304 209 W/231 W
Note: The peak power listed in Table 3 is of a fully configured ProLiant DL320 Generation 2
server (Configuration 4 was measured to be only about 83 percent of its rated peak input power).
Note: DIMM and HDD input power can vary depending on the component and drive
manufacturer.
input power budget derating
If a deployment plan limits the future expansion beyond certain configuration options, which may
be added in the future, then adjustments can be made to the expected input current and thermal
requirements of the servers.
To derate the input power, start with the minimum configuration 1 from Table 2. Add the typical
power of the components included in the desired system configuration to calculate the derated
power budget. Typical input powers for various components are listed in Table 3.
Example
Assuming the desired server configuration is as follows; use to calculate the derated power
budget using the typical power from Table 3.
Processor: 2.26 GHz
Memory: 4x128 MB
Storage: 2x18.2 GB
Smart Array Controller 5304: 1x SA5304
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