HP Z800 Owners Manual

							Power supply description
This workstation offers an 850W power supply and an 1110W power supply to provide power for the
workstation. The power supplies are compatible with ENERGY STAR requirements, and offer 85%
efficient or better operation.
Power supply voltages
NOTE:This workstation incorporates the blind-mate plug feature. You do not have to manipulate a
cable harness when removing or installing the power supply.
Table 1-5  Power supply source voltages
Source voltageDescription
+12 V-CPU0Input to onboard regulator that supplies power to CPU0 and CPU0 fan
+12 V-CPU1Input to onboard regulator that supplies power to CPU1 and CPU1 fan
+12 V-M0Input to onboard regulator that supplies power to memory on CPU0
+12 V-M1Input to onboard regulator that supplies power to memory on CPU1
+12 V-BInput to onboard regulators that supply 3.3V and 5V, system fans
+12 V-SPCI, PCIe, and system fans
+12 V-DStorage (hard drive, optical disk drive, diskette drive), and input to
miscellaneous onboard regulators
+12 V-G1PCIe auxillary connector for both connectors on 850W and one for 1110W
+12 V-G2Second PCIe auxiliary connector on 1110W power supply
V12NPCI and serial ports
+5 V-SB Sleep circuitry
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							Power supply currents
Table 1-6  Maximum current per rail
Voltage rail850W maximum
continuous current1110W maximum
continuous current
+12 V-CPU018.0A18.0A
+12 V-CPU118.0A18.0A
+12 V-MO18.0A18.0A
+12 V-M118.0A18.0A
+12 V-B18.0A18.0A
+12 V-S18.0A18.0A
+12 V-D18.0A18.0A
+12 V-G/G118.0A18.0A
+12 V-G2N/A18.0A
V12N0.15A0.15A
+5 V-SB 5.00A 9.0A
CAUTION:Do not exceed 70.0 amps (840 watts) of 12-volt (CPU0/CPU1/M0/M1/B/D/S/G) power
combination for the 850W power supply.
Do not exceed 92.5A amps (1110 watts) of 12-volt (CPU0/CPU1/M0/M1/B/D/S/G1/G2) power
combination for the 1110W power supply.
Do not exceed 104.2A amps (1250 watts) of 12-volt (CPU0/CPU1/M0/M1/B/D/S/G1/G2) power
combination for the 1250W power supply.
Do not exceed 850 watts (for the 850-W power supply), or 1110 watts (for the 1110-W power supply)
of total continuous output power.
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							Power supply specifications
Table 1-7  Power supply specifications
ItemDescription
Power supply850W Wide Ranging, Active PFC1110W Wide Ranging, Active PFC*
Operating voltage range90-269 VAC90-269 VAC
Rated voltage range100-240 VAC118 VAC100-240 VAC118 VAC
Rated line frequency50-60 Hz400 Hz50-60 Hz400 Hz
Operating line frequency range47-66 Hz393-407 Hz47-66 Hz393-407 Hz
Rated input current11A@100-127 VAC
5.5A@200-240 VAC11.0A@118 VAC12.0A@100 VAC,
1110W
12.0A@115 VAC,
1250W
10.0A@200-240VA
C, 1250W12.0A@118 VAC ,
1250W
Heat dissipation
(Configuration and software
dependent)Typical: 1707 Btu/hr = (430 kg-cal/hr)
Max: 3538 Btu/hr = (892 kg-cal/hr)Typical: 2128 Btu/hr = (536 kg-cal/hr)
Max: 4457 Btu/hr = (1123 kg-cal/hr)
Max2: 5019 Btu/hr = (1265 kg-cal/hr)
Power supply fan2x80x25 mm variable speed2x80x25 mm variable speed
ENERGY STAR Qualified (config
dependent)YesYes
80 PLUS compliant80 PLUS BRONZE compliant80 PLUS SILVER compliant
FEMP Standby Power compliant
@115V (
						

							See the Site preparation guide for the HP 800 workstation at http://hp.com/support/
workstation_manuals for further power consumption information.
This product is in compliance with U.S. Executive Order 13221.
System fans 
This workstation includes:
●Two rear system fans
●One CPU0 fan
●One CPU1 fan (optional)
●Two power supply fans
●Two memory fans
●One upper front system fan
●One lower front system fan (optional)
In addition, some graphics cards include onboard fans.
Resetting the power supply 
If an overload triggers the power supply overload protection, power is immediately disconnected.
To reset the power supply:
1.Disconnect the power cord from the workstation.
2.Determine what caused the overload and fix the problem. For troubleshooting information, see
Diagnostics and troubleshooting on page 164.
3.Reconnect the power cord and restart the workstation.
When you power off the workstation through the operating system, power consumption falls below what
is considered low power consumption but does not reach zero. This low power consumption feature
extends the life of the power supply.
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							Ensuring proper ventilation
Proper ventilation for the system is important for workstation operation. Follow these guidelines to
ensure adequate ventilation:
●Operate the workstation on a sturdy, level surface.
●Place the workstation in an area with adequate ventilation. Provide at least 6 inches of clearance
at the front and back of the workstation as shown in the following figure.
Your workstation might look different than the one shown.
Figure 1-5  Proper workstation ventilation
●Ensure that the ambient air temperature surrounding the workstation falls within the published limit.
NOTE:The ambient upper limit of 35°C is only good up to 5000 feet elevation. There is a 1°C
per 1000 feet derating above 5000 feet. So at 10,000 feet the upper ambient air temperature limit
is 30°C.
●For cabinet installation, ensure adequate cabinet ventilation and ensure that the ambient
temperature within the cabinet does not exceed published limits.
●Never restrict the incoming or outgoing airflow of the workstation by blocking any vents or air intakes
as shown in the following figure.
Figure 1-6  Proper workstation placement
Features
This section describes several features that improve workstation performance and usability. It presents
these topics:
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							Topics
ENERGY STAR Qualification on page 15Hyper-threading on page 17
EUP compliance mode on page 16Intel Turbo Boost Technology on page 17
Accessibility on page 16HP Cool Tools on page 17
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							ENERGY STAR Qualification
HP computers marked with the ENERGY STAR logo are compliant with the applicable U.S.
Environmental Protection Agency (EPA) ENERGY STAR specifications for computers. The EPA
ENERGY STAR logo does not imply endorsement by the EPA. As an ENERGY STAR Partner, Hewlett-
Packard Company has determined the products marked with the ENERGY STAR logo are ENERGY
STAR qualified per the applicable ENERGY STAR guidelines for energy efficiency. The following logo
appears on all ENERGY STAR qualified computers.
The ENERGY STAR Computers Program was created by the EPA to promote energy efficiency and
reduce air pollution through more energy-efficient equipment in homes, offices, and factories. One way
products achieve this energy efficiency is by reducing power consumption when not being used through
the Microsoft Windows Power Management feature.
The Power Management feature enables the workstation to enter a low-power (or “sleep”) mode after
a period of inactivity. When used with an external monitor that is ENERGY STAR qualified, this feature
also supports the similar power management features of the external monitor.
To take advantage of this energy savings:
●The Power Management feature has been preset to suspend the workstation to a sleep state after
30 minutes of inactivity.
●The Power Management feature has been preset to suspend the monitor to a sleep state after 15
minutes of inactivity.
Both the computer and monitor can be woken from sleep mode through user interaction with any of the
computer input devices (mouse, keyboard, and so on). when configured with Wake On LAN (WOL)
enabled, the workstation can also be woken by a network signal.
See the EPA ENERGY STAR Power Management Web site for more information about the energy and
financial savings potential of the Power Management Feature: 
http://www.energystar.gov/
powermanagement.
See the EPA ENERGY STAR Web site for more information about the ENERGY STAR program and
its environmental benefits: 
http://www.energystar.gov.
CAUTION: Using the Energy Save Monitor feature with monitors that are not ENERGY STAR qualified
can cause video distortion when an Energy Save timeout occurs.
NOTE: ENERGY STAR is not supported on Linux workstations.
If it is necessary to restore the operating system, you must also reset the ENERGY STAR settings (if
applicable) after the restore.
To verify the factory default power settings for your workstation, select Start>Control Panel, and then
double-click Power Options.
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							EUP compliance mode
This workstation provides EUP compliance mode capability.
When enabled, this feature enables the workstation to shut down to the lowest possible power state by
removing all power to the system board.
When disabled, the workstation powers down conventionally.
When the workstation is shutdown in EUP compliance mode, you must power it up with the workstation
power button.
Enabling EUP compliance mode
To enable EUP compliance mode:
1.Press F10 during start up.
2.Using the arrow keys, select the Power>Hardware Power Management>EuP Compliance
Mode, and then select Enable.
3.Press F10 to accept the change.
4.Select File>Save Change and Exit, and then press F10 to accept the change.
Disabling EUP compliance mode
To disable the EUP compliance mode:
1.Press F10 during start up.
2.Select Power>Hardware Power Management>EuP Compliance Mode, and then select
Disable.
3.Press F10 to accept the change.
4.Select File>Save Change and Exit, and then press F10 to accept the change.
Accessibility
HP is committed to developing products, services, and information that is easier to access for all
customers, including customers with disabilities and age-related limitations. HP products with Windows
Vista® Business and Microsoft® Windows® XP Professional preinstalled are designed for accessibility,
and these products are tested with industry-leading Assistive Technology products. For more
information see 
http://www.hp.com/accessibility.
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							Hyper-threading
This workstation supports Hyper-Threading Technology (HTT) which is an Intel-proprietary technology
used to provide process parallelization. The technology improves processor performance under certain
workloads by providing useful work for execution units that would otherwise be idle. A processor with
Hyper-Threading enabled is treated by the operating system as two processors instead of one. Hyper-
threading relies on support in the operating system as well as the CPU.
To implement hyper-threading, see 
The Computer Setup (F10) Utility on page 31.
Intel Turbo Boost Technology
This workstation supports Intel® Turbo Boost technology which enables the CPU to run at a higher than
normal rate. When all CPU cores are not necessary for the workload, inactive cores are turned off and
power is diverted to the active cores to increase their efficiency.
You can enable and disable Turbo Boost in the workstation BIOS menu. For instructions on setting BIOS
features, see 
The Computer Setup (F10) Utility on page 31.
HP Cool Tools
An HP Workstation with Windows XP Professional includes additional software that is not installed when
you first start the workstation. Additionally, a number of preinstalled tools on the workstation can enhance
the workstation experience. To access or learn more about these applications:
1.Open the HP Cool Tools folder by selecting Start>All Programs>HP Cool Tools.
2.Select the  HP Cool Tools icon on the desktop.
3.To learn more about these applications, select HP Cool Tools—Learn More.
4.To install or launch the applications, select the appropriate application.
NOTE: A preinstalled Windows Vista Business operating system does not contain an HP Cool Tools
icon, shortcut, or folder, but several of the tool programs are included, such as Performance Tuning
Framework.
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							2 Setting up the operating system
This chapter provides setup and update information for the workstation operating system. It includes
these topics:
Topics
Setting up the Microsoft operating system on page 19
Setting up Red Hat Enterprise Linux on page 20
Setting up Novell SLED on page 21
Updating the workstation on page 21
This chapter also includes information on how to determine that you have the latest BIOS, drivers, and
software updates installed on the workstation.
CAUTION:Do not add optional hardware or third-party devices to the HP workstation until the
operating system is successfully installed. Adding hardware might cause errors and prevent the
operating system from installing correctly.
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