HP Z220 SFF, Z220 CMT, Z420, Z620, and Z820 Workstations Maintenance and Service Guide

A Linux technical notes
HP offers a variety of Linux solutions for HP workstation customers:
●
HP certifies and supports Red Hat Enterprise Linux (RHEL) on HP workstations.
●
HP certifies SUSE Linux Enterprise Desktop (SLED) on HP workstations.
●
HP offers a SLED 11 preload on some Z Series Workstations.
For Linux setup and restore procedures, see the user guide for your workstation at
http://www.hp.com/support/workstation_manuals.
●
System RAM
●
Audio
●
Network cards
●
Hyper-Threading Technology
●
NVIDIA Graphics Workstations
●
AMD Graphics Workstations
NOTE: After you set up the operating system, make sure that the latest BIOS, drivers, and software
updates are installed.
CAUTION: Do not add optional hardware or third-party devices to the workstation until the operating
system is successfully installed. Adding hardware might cause errors and prevent the operating
system from installing correctly.
System RAM
HP supports different amounts of total RAM in various HP workstations, based on the number of
hardware DIMM slots and the capabilities of the system. The total memory supported for each
configuration is listed in the
Hardware Support Matrix for HP Linux Workstations at
http://www.hp.com/support/linux_hardware_matrix.
Audio
All HP workstations come with built-in audio hardware. The audio hardware is supported by the
Advanced Linux Sound Architecture (ALSA) drivers included with all modern Linux distributions.
The audio hardware provides basic playback and recording features. The ability to simultaneously
play audio from multiple sources, such as applications and CDs, is provided in the ALSA driver that
provides audio mixing. The performance of software audio mixing and playback is greatly improved in
ALSA version 1.0.13 and later.
After the driver is installed, the optional NVIDIA and AMD graphics cards that are supported in HP
workstations also provide audio functionality over HDMI. The signal can be passed through the
DisplayPort connector to a monitor with audio capabilities. The vendor driver must be installed. Such
a configuration might present two audio hardware choices. If you do not hear sound through the
speakers, one possible reason is that the graphics card (default) is selected for audio output instead
of the DisplayPort. Check the audio settings (for example, Sound in gnome-control-center).
System RAM 157