HP Z800 Service 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.
230 Chapter 6 Diagnostics and troubleshooting ENWW

HP Z800 Specifications

General

Processor cache	8 MB
Processor model	E5560
Processor frequency	2.8 GHz
Processor cache type	L2
Processor manufacturer	Intel
Processor front side bus	1333 MHz
Number of processors installed	2
Audio system	Integrated High Definition Realtek ALC262 Audio, optional Creative X-Fi Titanium PCIe Audio Card, optional HP Thin USB Powered Speakers
Product type	Workstation
Motherboard chipset	Intel® 5520
ECC	Yes
Maximum internal memory	192 GB
HDD speed	15000 RPM
HDD capacity	446 GB
HDD interface	Serial Attached SCSI (SAS)
Optical drive type	DVD Super Multi
Card reader integrated	No
I/O ports	Front: 3 USB 2.0, 1 IEEE 1394a, 1 microphone in, 1 headphone out; Rear: 6 USB 2.0, 1 IEEE 1394a, 1 audio in, 1 audio out, 1 microphone in, 2 PS/2, 2 RJ-45 to integrated Gigabit LAN, 1 serial; Internal: 3 USB 2.0
Headphone outputs	1
USB 2.0 ports quantity	9
Parallel ports quantity	0
Power supply	1110 W
Power consumption (typical)	240 W
Non-operating altitude	9100 m
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	5 - 35 °C
Storage relative humidity (H-H)	8 - 90 %
Operating relative humidity (H-H)	8 - 85 %
Display	HP LP1965 19-inch LCD Monitor, HP LP2065 20-inch LCD Monitor, HP LP2275w 22-inch Widescreen LCD Monitor, HP LP2475w 24-inch Widescreen LCD Monitor, HP DreamColor LP2480zx Professional Display (24-inch widescreen), HP LP3065 30-inch Widescreen LCD Monitor (all sold separately)
Drive bays	3 external 5.25\
Graphics card	-
Keyboard type	HP PS/2 Standard Keyboard
Expansion slots	1 PCI, 1 PCI Express Gen1 (x8 mechanically, x4 electrically), 1 PCI Express Gen2 (x8 mechanically, x4 electrically), 2 PCI Express Gen2 (x16 mechanically, x8 electrically), 2 PCI Express Gen2 x16
Pointing device	HP USB Laser Scroll Mouse
Power requirements	1110 watts wide-ranging, active Power Factor Correction, direct connection Power Supplies
Storage drive type	300 GB 15000 rpm SAS 146 GB 15000 rpm SAS SAS 146 GB + 300 GB
HDD controller type	SATA (10000 rpm) SATA (7200 rpm) SAS (15000 rpm)
Video card features	No integrated Graphic Card
Maximum HDD capacity	450 GB
Storage drive controller	Integrated 6 channel SATA 3 Gb/s controller with RAID (0, 1, 5 or 10) capability, integrated 8 channel SAS controller with RAID (0, 1 or 10) capability, optional LSI 8888 ELP 8-port SAS HW with RAID (0, 1, 5 or 10) capability
Minimum storage drive space	146 GB
Operating system installed	Windows Vista Business
Compatible operating systems	HP Installer Kit for Linux
Chassis type	Mini Tower
Country of origin	China

Weight and Dimensions

Depth	526.5 mm
Width	203.5 mm
Height	445.1 mm
Weight	19500 g