C-38 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • December 2004
C.9 System Power Management
This section outlines Sun Blade 1500 Energy Star compliance and power budget. For
information about setting up power management, see
“Power Management” on
page D-1.
C.9.1 Energy Star
The Sun Blade 1500 workstation is designed to meet Energy Star Tier 2, Guideline B
conditions. Because a 420 W power supply is provided for the Sun Blade 1500
workstation, the power budget in sleep mode to fulfill Energy Star compliance is 63
W. The following list describes the requirements of Guideline B:
1. The computer must enter a sleep mode after a period of inactivity.
2. If the computer is shipped with the capability to be on a network, it must have
the ability to enter a sleep mode irrespective of the network technology.
3. The computer must retain in sleep mode its ability to respond to all types of
network requests. There must be no loss in network functionality available to the
user. For example, the network functionality available to the user during the sleep
mode must be the same as that was available before the computer entered the
sleep mode.
4. The computer must consume in the sleep mode, no more than 15% of the
maximum continuous power rating of its power supply.
C.9.2 Power Budget
TABLE C-12 lists the maximum power consumption for components of the Sun Blade
1500 workstation, in both normal operation and Energy Star modes.
TABLE C-12 Sun Blade 1500 Component Power Consumption
Maximum Power Consumption
Component Normal Operation Energy Star Mode
UltraSPARC IIIi CPU 68W @ 1.5 Ghz 4.3W @ 1/32 full speed
JIO I/O bridge 11.25 W 3.75 W
Memory 30 W 8 W
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