HP Z1 Maintenance And Service Guide

Solving audio problems
Table 4-5 Audio problems
Problem Cause Solution
Sound does not come
out of the speaker or
headphones.
Software volume control is
turned down.
Click the Speaker icon on the taskbar and use the volume
slider to adjust the volume, and/or adjust the volume control in
the audio player.
The external speakers are
not turned on.
Turn on the external speakers.
External speakers plugged
into the wrong audio jack.
See your sound card documentation for proper speaker
connection.
Digital CD audio is
not enabled.
Enable digital CD audio:
1. From the Control Panel, select Device Manager.
2. Right-click the DVD/CD-ROM device and select
Properties.
3. On the Driver Properties tab, select Enable.
Headphones or devices
connected to the line-out
connector have muted the
internal speaker.
Turn on and use headphones or external speakers, if connected,
or disconnect headphones or external speakers.
Volume is muted. Click the Speaker icon on the taskbar and make sure the mute
button below the volume slider is not selected.
Computer is in Standby
mode.
Press the power button to resume from Standby mode.
Sound quality (such as
tone, focus, space,
equalization, treble or
bass) from the internal
speakers is not
acceptable.
The graphic equalizer (EQ)
and/or SRS audio
enhancement settings have
been changed and are not
appropriate for the audio
content being played.
1. Open the SRS user interface (found either in the Control
Panel or the taskbar).
2. Go to the Advanced Settings tab.
3. Click the Reset button under Default Settings.
This restores the SRS audio enhancement settings, graphic
equalizer, and volume to the default settings, which are
optimized for most audio content.
Sound occurs
intermittently.
Processor resources are
being used by other open
applications.
Shut down all open processor-intensive applications.
Workstation appears to
be locked up while
recording audio.
The hard disk might be full. 1. Before recording, be sure there is enough free space on the
hard disk.
2. Try recording the audio file in a compressed format.
The optical S/PDIF
output does not work.
S/PDIF is not the default
audio output device.
1. Go to Control Panel > Sound.
2. On the Playback tab, select Digital Output (S/PDIF).
3. Click Set Default.
72 Chapter 4 Diagnostics and troubleshooting

HP Z1 Specifications

General

Tcase	72.6 °C
Bus type	DMI
Stepping	D2
FSB Parity	No
Processor cache	8 MB
Processor cores	4
Processor model	E3-1245
System bus rate	5 GT/s
Processor series	Intel Xeon E3-1200
Processor socket	LGA 1155 (Socket H2)
Processor threads	8
Processor codename	Sandy Bridge
Processor frequency	3.3 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.7 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
Thermal Design Power (TDP)	95 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	33
Maximum number of PCI Express lanes	20
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	1066, 1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s
Maximum internal memory supported by processor	32 GB
Audio system	HD
Product type	Workstation
Motherboard chipset	Intel® C206
Memory slots	4x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Memory layout (slots x size)	- GB
Resolution	2560 x 1440 pixels
Graphics card	Quadro 500M
Networking features	Gigabit Ethernet (10/100/1000)
Wireless technology	802.11 a/g/n
Graphics card family	NVIDIA
Maximum storage capacity	2 TB
HDD speed	7200 RPM
RAID levels	0, 1
HDD capacity	1000 GB
HDD interface	SATA
Optical drive type	DVD Super Multi
Maximum graphics card memory	1.024 GB
On-board graphics card model	Intel® HD Graphics P3000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	850 MHz
On-board graphics card dynamic frequency (max)	1350 MHz
Number of displays supported (on-board graphics)	2
Display diagonal	27 \
Display number of colors	1.073 billion colors
Modem (RJ-11) ports	0
USB 2.0 ports quantity	7
Bundled software	Roxio Easy Media Creator; Intervideo WinDVD
Operating system installed	Windows 7 Professional
Power supply	400 W
Power supply input voltage	100 - 240 V
Power supply input frequency	50 - 60 Hz
Certification	Energy Star
Product color	Black
Country of origin	China
Processor code	SR00L
Processor ARK ID	52274
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	419.1 mm
Width	660.4 mm
Height	584.2 mm
Weight	213.2 g