System Fans; Resetting The Power Supply; Environmental Specifications; Energy Star Qualification - HP Xw4600 - Workstation - 2 GB RAM Technical Reference Manual

System fans

This workstation includes one rear system fan, one processor heatsink fan, and one power supply fan.
In addition, an optional front system fan is available for special environments, and some graphics cards
include onboard fans.

Resetting the power supply

If an overload triggers the power supply overload protection, all power is immediately disconnected. To
reset the power supply:
1. Disconnect the power cord from the workstation..
2. Determine what caused the overload and fix the problem. See
troubleshooting on page 107
3. Reconnect the power cord and reboot the workstation.
When you power off the workstation through the operating system, power consumption falls below what
is considered low power consumption, but does not reach zero. This low power consumption feature
extends the life of the power supply.

Environmental specifications

This section describes the environmental specifications of your workstation.
Table 1-8 Environmental specifications
Temperature (operating)
Temperature (nonoperating)
Humidity (operating)
Humidity (nonoperating)
Altitude (operating)
Altitude (nonoperating)
Shock (operating)
Shock (nonoperating)
Vibration (operating)
Vibration (nonoperating)

ENERGY STAR Qualification

HP computers marked with the ENERGY STAR logo are compliant with the applicable U.S.
Environmental Protection Agency (EPA) ENERGY STAR specifications for computers. The EPA
ENERGY STAR logo does not imply endorsement by the EPA. As an ENERGY STAR Partner, Hewlett-
Packard Company has determined the products marked with the ENERGY STAR logo are ENERGY
ENWW
for troubleshooting information.
5° to 35°C (40° to 95°F)
-40° to 60°C (-40° to 140°F)
8% to 85% RH, noncondensing
8% to 90% RH, noncondensing
0 to 3,048m (10,000 ft)
0 to 9,144m (30,000 ft)
1/2-sine: 40G, 2–3 ms
1/2-sine: 160 cm/s, 2–3 ms (~100g)
Square: 20G, 422 cm/s
NOTE: Values represent individual shock events and are not
indicative of repetitive shock events.
Operating random: 0.5G (rms), 5–300 Hz
Random: 2.0G (rms), 10–500 Hz
NOTE: Values are not indicative of continuous vibration.
System diagnostics and

ENERGY STAR Qualification

9