HP Z400 User Manual

Solving display problems
Table 6-5 Display problems
Problem Cause Solution
Blank screen (no video). The cable connections are not
correct.
Verify the cable connections from the monitor to the
workstation and to a working electrical outlet.
The monitor is off. Turn the monitor on (LED is on). You might need to refer to
the monitor manual for an explanation of LED signals.
Screen blanking utility installed
or energy saver features
enabled.
Press a key or the mouse button and, if set, enter your
password.
System ROM is bad; system is
running in FailSafe Boot Block
mode (indicated by 8 beeps).
Reflash the ROM using a SoftPaq.
Fixed-sync monitor does not
sync at the resolution
specified.
Verify that the monitor can accept the same horizontal
scan rate as the resolution specified.
Computer is in Hibernate
mode.
Press the power button to resume from Hibernate mode.
Workstation monitor settings
are not compatible with the
monitor.
1. When you see Press F8 in the bottom-right corner of
the screen, restart the workstation and press F8
during startup.
2. Using the keyboard arrow keys, select Enable VGA
Mode and then press Enter.
3. For Windows, double-click the Display icon in the
Control Panel and then select the Settings tab.
4. Use the sliding control to reset the resolution.
The display works properly during
the POST but goes blank when the
operating system starts.
The display settings in the
operating system are
incompatible with your
graphics card and monitor.
1. For Windows, restart your workstation in VGA mode.
2. After the operating system starts, change the display
settings to match those supported by your graphics
card and monitor.
3. Refer to your operating system and graphics card
documentation for information about changing
display settings.
Power LED flashes red 6 times
(once every second), followed by a
2–second pause, and then the
workstation beeps 6 times.
Prevideo graphics error. For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
Monitor does not function when
used with Energy Saver features.
Monitor without Energy Saver
capabilities is being used with
Energy Saver features
enabled.
Disable the monitor Energy Saver feature.
ENWW
Troubleshooting scenarios and solutions
181

HP Z400 Specifications

General

Bus type	QPI
Processor cache	4 MB
Processor cores	2
Processor model	W3503
System bus rate	4.8 GT/s
Processor socket	-
Processor frequency	2.4 GHz
Processor cache type	Smart Cache
Processor lithography	45 nm
Processor manufacturer	Intel
PCI Express slots version	2.0
Processor operating modes	64-bit
ECC supported by processor	Yes
Thermal Design Power (TDP)	130 W
Number of processors installed	1
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	800, 1066 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s
Maximum internal memory supported by processor	24 GB
Audio system	Realtek ALC262
Product type	Workstation
Motherboard chipset	Intel® X58 Express
Memory slots	6x DIMM
Internal memory	4 GB
Memory channels	Triple-channel
Memory clock speed	1066 MHz
Memory layout (slots x size)	- GB
Graphics card	Quadro 600
Networking features	Gigabit Ethernet (10/100/1000)
Graphics card family	NVIDIA
HDD speed	- RPM
RAID levels	0, 1, 5, 10
HDD capacity	500 GB
HDD interface	SATA II
Storage media	HDD
Display included	No
USB 2.0 ports quantity	8
Parallel ports quantity	0
Chassis type	Minitower
Country of origin	China
Number of 5.25\" bays	3
Operating system installed	Windows 7 Professional
Operating system architecture	32-bit
Power supply	475 W
Processor ARK ID	40800
Processor package size	42.5 x 45 mm
Supported instruction sets	SSE4.2

Weight and Dimensions

Depth	455.3 mm
Width	167.9 mm
Height	450.2 mm
Weight	13500 g