HP Z1 Maintenance And Service Guide

Table 4-4 External display problems (continued)
Problem Cause Solution
Power LED flashes red
6 times (once every
second), followed by a
2-second pause,
followed by 6 beeps.
Prevideo graphics error. Try these solutions in this order:
●
Reseat the graphics card if using nVidia graphics;
reseat the processor if using Intel HD Graphics.
●
Replace the graphics card if using nVidia graphics or
replace the processor if using Intel HD graphics.
●
Replace the system board.
Processor does not support
graphics output and no discrete
graphics card is installed.
Either:
●
Install a processor with Intel HD Graphics.
●
Install a supported graphics card.
Dim characters The brightness and contrast
controls are not set properly.
Adjust the monitor brightness and contrast controls.
Cables are not properly
connected.
1. Verify that the monitor cable is securely connected to
the computer and the monitor.
2. Verify that internal Rear IO DP/LAN cable is
connected to the system board and the Rear I/O
board:
a. Open the computer.
b. Verify the Rear IO DP/LAN Cable is connected
to CON6701 on the system board and J16 on
the Rear I/O board (on the left bottom side).
Blurry video or
requested resolution
cannot be set.
If the graphics controller was
upgraded, the correct video
drivers might not be loaded.
Install the video drivers included in the upgrade kit, or
download and install the latest drivers for your graphics
card from
http://welcome.hp.com/country/us/en/
support.html.
Monitor cannot display requested
resolution.
Change the resolution.
The picture is broken
up, rolls, jitters, or
flashes.
The monitor connections might be
faulty, or the monitor might be
incorrectly adjusted.
1. Verify that the monitor cable is securely connected to
the computer and the monitor.
2. Verify that internal rear IO DP/LAN cable is
connected to the system board and the rear I/O
board:
a. Open the computer.
b. Verify the rear IO DP/LAN cable is connected to
CON6701 on the system board and J16 on the
rear I/O board (on the left bottom side).
Monitor must be degaussed. Degauss the monitor.
High pitched noise
coming from inside a
flat-panel monitor.
Brightness and contrast settings
are too high.
Lower brightness and contrast settings.
70 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