HP Workstation x4000 hp workstation x4000 - Getting Started Guide and Warranty - Page 25

Using Power Management - ram

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NOTE Setting Up and Using Your Workstation Using Your x4000 Workstation Using Power Management Power management lets you reduce the Workstation's overall power consumption by slowing down the Workstation's activity when it is idle. For more information on power consumption data, refer to the x4000 Technical Reference on HP's web site (www.hp.com/workstations/support). Operating systems differ in their power management capabilities. In Windows 2000, you can select from two power management modes: • Stand By is a low power state where the processor is shut off, but the rest of the machine remains powered. Waking up the Workstation from Stand By mode is faster than from Hibernate mode because the RAM contents do not need to be restored. However, when the Workstation is in Stand By mode, it consumes more power than Hibernate mode because the memory remains powered. • Hibernate (if enabled) makes the machine look and behave like it is off except that it remembers the state it was in before hibernation and can be awakened without a full operating system boot. This is because the operating system copies the RAM contents out to a special location on the hard disk before entering hibernation. You must enable Hibernate mode through Power Options in the Control Panel before it can be a shut down option. To wake the Workstation from either mode, press the power button for less than four seconds. To change your power management settings in Windows 2000: 1. Select Start > Settings > Control Panel. 2. Double click on Power Options. For more information on changing your power options, refer to your Windows 2000 documentation. Windows NT 4.0 does not support these power management modes. Chapter 1 23

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Setting Up and Using Your Workstation
Using Your x4000 Workstation
Chapter 1
23
Using Power Management
Power management lets you reduce the Workstation’s overall power
consumption by slowing down the Workstation’s activity when it is idle.
For more information on power consumption data, refer to the
x4000
Technical Reference
on HP’s web site (
www.hp.com/workstations/support
).
Operating systems differ in their power management capabilities. In
Windows 2000, you can select from two power management modes:
•
Stand By
is a low power state where the processor is shut off, but the
rest of the machine remains powered. Waking up the Workstation
from Stand By mode is faster than from Hibernate mode because the
RAM contents do not need to be restored. However, when the
Workstation is in Stand By mode, it consumes more power than
Hibernate mode because the memory remains powered.
•
Hibernate
(if enabled) makes the machine look and behave like it is
off except that it remembers the state it was in before hibernation
and can be awakened without a full operating system boot. This is
because the operating system copies the RAM contents out to a
special location on the hard disk before entering hibernation.
You must enable Hibernate mode through Power Options in the
Control Panel before it can be a shut down option.
To wake the Workstation from either mode, press the power button for
less than four seconds.
To change your power management settings in Windows 2000:
1. Select
Start > Settings > Control Panel
.
2.
Double click on
Power Options
.
For more information on changing your power options, refer to your
Windows 2000 documentation.
NOTE
Windows NT 4.0 does not support these power management modes.