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Publisher| DevicesConcepts |
hardware
devices and device drivers, hardware profiles, and energy-saving
options. Topics like how to configure display or mouse settings
aren't coveredsee Windows XP in a
Nutshell (O'Reilly) for more information
on basic stuff like that.WS2003 supports a much wider range of hardware devices than the
earlier NT Server operating system, including support for both Plug
and Play (PnP) and legacy devices. When you install legacy devices on
your system, you may have to manually specify resource settings like
IRQ and I/O port settings. When you install PnP devices, Windows
automatically assigns resources to the device. Should two devices end
up with conflicting (overlapping) resource settings, one or both of
the devices may fail to work. Using the tools described in this
topic, you can troubleshoot such device conflictsprovided you
also have a good understanding of PC hardware (see PC
Hardware in a Nutshell by Robert Bruce Thompson and
Barbara Fritchman Thompson from O'Reilly if you
don't!).
Device Drivers
Device drivers are software
components that enable hardware
devices to work and communicate with the operating system. Using
Device Manager you can update (install) new drivers and uninstall
existing ones. If problems arise after updating drivers, you can also
roll back to a previous version of the driver. Driver rollback is
possible because of the new driver versioning feature of WS2003. You
can also roll back drivers by selecting the Last Known Good
Configuration option in the Advanced Menu Options, though Device
Manager provides more granularity in performing this task.To protect device drivers included with WS2003 against corruption or
tampering, Microsoft digitally signs them to assure that the file has
not been altered or overwritten. You can configure Windows to do one
of three things when it finds a device driver that
isn't digitally signed:
- Display a warning (default)
- Ignore the issue and install the driver
- Prevent the driver from being installed
Hardware Profiles
Hardware profiles specify
which devices are enabled or disabled
when your computer starts up. Hardware profiles were often used for
laptop computers running NT, on which you could define one profile
for mobile use and another for docked use. With PnP support for
Windows Server, creating separate hardware profiles is usually
unnecessary since a PnP-compliant laptop can automatically detect
whether it is docked and enable or disable devices accordingly.
Hardware Compatibility List (HCL)
The HCL lists the hardware
platforms and
devices supported by WS2003 and can be found at
www.microsoft.com/hwtest/hcl/.
Hardware Enhancements in WS2003
Other enhancements to
hardware
support in WS2003 include:
- DualView
Display adapters supporting DualView have two video interfaces that
allow you to connect two monitors to one adapter and display
different output on each monitor. This feature is an extension to the
multimonitor support of W2K that previously required two video
adapters to do the same thing.- Headless server
The new Emergency Management Services (EMS) lets you install and
manage a WS2003 machine remotely from the command line when no
keyboard, mouse, display adapter, or monitor is connected to the
server. Administrators can also use EMS to manage servers when
Windows is not functioning, such as during the boot process or when a
stop screen occurs. This feature is supported by only the latest
hardware, and it would typically be used to manage rack-mounted
servers in a data center. See bootcfg in Chapter 5 for more information.- Hot add memory
On supporting hardware platforms, you can now add RAM without
rebooting your system.- Large IDE drive
OEM hardware that supports 48-bit block addressing for ATAPI allows
you to use IDE drives larger than 137 GB. Support for new UDMA
transfer modes is also included.
