Appendix A Linux Technical Notes; System Ram; Audio - HP Z1 Maintenance And Service Manual

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.
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HP certifies SUSE Linux Enterprise Desktop (SLED) on HP workstations.
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HP offers a SLED 11 preload on some Z Series workstations.
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For Linux setup and restore procedures, see the user guide for your workstation at
http://www.hp.com/support/workstation_manuals.
System RAM on page 94
Audio on page 94
Network cards on page 95
Hyper-Threading Technology on page 95
NVIDIA Graphics Workstations on page 96
NOTE: After you set up the operating system, make sure that the latest BIOS, drivers, and software
updates are installed.
CAUTION:
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
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
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 by software mixing
functionality in the ALSA driver. The performance of software audio mixing and playback functionality
is greatly improved in ALSA version 1.0.13 and later drivers.
After the NVIDIA proprietary driver is installed, the optional NVIDIA graphics devices supported in the
HP Z1 Workstation also provide audio functionality over HDMI, which can be passed through the
external DisplayPort connector to a monitor with audio capabilities. Such a configuration may present
two audio hardware choices. If you do not hear sound through the speakers, one possible reason is
94

Appendix A Linux technical notes

Topics
Do not add optional hardware or third-party devices to the workstation until the operating
Hardware Support Matrix for HP Linux Workstations
(ALSA) drivers included with all modern Linux distributions.
at