HP A7818-IE002 - Manual (Page 21)

System Overview
Specifications And Characteristics
Chapter 1 21
If an overload triggers the power supply’s overload protection, all power is immediately
cut. To reset the power supply unit:
1. Disconnect the power cord.
2. Determine what caused the overload, and fix the problem.
3. Reconnect the power cord, and reboot the workstation.
If an overload occurs twice, then there is an undetected short circuit somewhere.
When you use the front panel's power button to turn off the workstation, power
consumption falls below the low power consumption (refer to the table on page 21), but
doesn't reach zero. This on/off feature extends the power supply's lifetime. To reach zero
power consumption in “off ” mode, either unplug the workstation or use a power block
with a switch.
Power Consumption And Cooling
The power consumption and acoustics listed in the following table are valid for a
standard configuration as shipped (one processor, 256MB of memory, 492 W power
supply, one hard disk drive, graphics card, LAN card).
All information in this section is based on primary power consumptions.
Power consumption (approximate
values) 230V/50Hz and 115V/60Hz
• Typical operating mode
• Suspend mode (Windows 2000
models only)
70W
<4W
- 238.8Btu/h
a
- 13.6Btu/h
a. 1W = 3.4121Btu/h
Additional Component
• Processor
• SCSI hard disk drive with I/O
access
• SCSI hard disk without I/O
access (idle)
• PCI card
50W
23W
16W
10W to
36W
- 170.6Btu/h
- 78.4Btu/h
- 54.5Btu/h
- 64.1Btu/h to
122.8Btu/h