HP Xw8400 HP xw8400 Workstation - Service and Technical Reference Guide - Page 17

Power consumption and cooling, Example 1 - dual core

Page 17 highlights

Table 1-7 Power supply specifications (continued) Rated voltage range 100-240 VAC 118 VAC Rated line frequency 50-60 Hz 400 Hz Operating line frequency range 47-66 Hz 393-407 Hz Rated input current 13.2 A@100-120 VAC 6.6 A@200-240 VAC 11.2 A@118 VAC Maximum rated power 800 W Heat dissipation Typical: 1,710 BTU/hr. (430 kg-cal/hr) Maximum: 3,793 BTU/hr. (956 kg-cal/hr) Power supply fan 92 mm x 32 mm variable speed Power supply size (wide x high x deep) 98 mm x 160 mm x 213 mm Energy Star-compliant Yes Blue Angel Compliant N/A Power consumption in ES mode - Suspend to RAM (S3) (Instantly Available PC)

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Rated voltage range
100–240 VAC
118 VAC
Rated line frequency
50–60 Hz
400 Hz
Operating line frequency range
47–66 Hz
393–407 Hz
Rated input current
13.2 A@100–120 VAC
6.6 A@200–240 VAC
11.2 A@118 VAC
Maximum rated power
800 W
Heat dissipation
Typical: 1,710 BTU/hr. (430 kg-cal/hr)
Maximum: 3,793 BTU/hr. (956 kg-cal/hr)
Power supply fan
92 mm x 32 mm variable speed
Power supply size (wide x high x deep)
98 mm x 160 mm x 213 mm
Energy Star–compliant
Yes
Blue Angel Compliant
N/A
Power consumption in ES mode — Suspend to
RAM (S3) (Instantly Available PC)
<20 W
FEMP standby power compliant @ 115 V (<2 W
in S5 - Power Off)
Yes (Wake-On-LAN (WOL) disabled)
BIST LED
Yes
Surge tolerant full ranging power supply
Withstands power surges up to 2,000 V
Power consumption and cooling
Example 1:
The following table shows the primary power consumption for an example configuration:
Two 2.66-GHz Xeon 5100 series dual-core processors
Four 1-GB, 667-MHz memory modules
Two 160-GB SATA hard drives
Two optical drives
One PCI Express graphics card (nVidia FX3500)
One diskette drive
One monitor, powered separately
Table 1-8
Example 1 energy consumption
115 VAC
230 VAC
100 VAC
LAN enabled
LAN disabled
LAN enabled
LAN disabled
LAN enabled
LAN disabled
Windows Idle (S0)
203 W
198 W
203 W
Windows Busy Typ (S0)
298 W
289 W
299 W
Windows Busy Max (S0)
380 W
368 W
383 W
Sleep (S3)*
5.4 W
4.0 W
5.9 W
4.7 W
5.1 W
3.9 W
Table 1-7
Power supply specifications (continued)
ENWW
Product specifications
7