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HP Z400 Workstation - Workstation specifications

This section provides workstation chassis, power supply, and environmental specifications.
Physical characteristics
The following table lists the workstation physical characteristics.
Weight (Typical configuration)
13.5-19.6 kg (29.8-43.2 lb.)
Chassis Dimensions
Height: 45.0 cm (17.7 in.)
Width: 17.0 cm (6.7 in.)
Depth: 44.5 cm (17.5 in.)
Power supply description
The workstation includes a 475-W 85% efficient power supply to provide power for the workstation. The power supply is compatible with ENERGY STAR requirements.
Power supply voltages
Power supply source voltages
Source voltage
Description
+3.3V
PCI, PCIe, audio, clocks, chipset, super I/O, BIOS ROM, and onboard logic
+5.1V
Storage (hard disk drive, optical disk drive, diskette drive), PCI, PCIe, chipset, audio, keyboard/mouse, and USB
+12 V-CPU
Input to onboard regulator that supplies power to CPU and CPU fan
+12 V-B
PCI, PCIe, and system fans
+12 V-D
Storage (hard disk drive, optical disk drive, diskette drive), graphics adapter, and input to onboard regulator that supplies power to memory
V12N
PCI and serial ports
+5 V-SB
Sleep circuitry
Power supply currents
Maximum current per rail
Voltage rail
475W maximum continuous current
+12 V-CPU
17.5A
+12 V-B
17.5A
+12 V-D
18.0A
V12N
0.30A
+5 V-SB
2.25A
3.3V
15.0A
5.1V
21.0A
  caution:
Do not exceed 475 watts of total continuous output power.
Maximum combined power on 3.3V and 5.1V is 110W.
Maximum combined current on +12V(CPU,B,D) is 38A.
Power supply specifications
Power supply specifications
Item
Description
Power supply
475W Wide Ranging, Active PFC and 85% efficient
Operating voltage range
90 – 269 VAC
Rated voltage range
100–240 VAC
118 VAC
Rated line frequency
50–60 Hz
400 Hz
Operating line frequency range
47–66 Hz
393–407 Hz
Rated input current
10A @ 100-127 VAC
6A @ 200–240 VAC
10A @ 118 VAC
Heat dissipation
(Configuration and software dependent)
Typical 954 Btu/hr = (240.3 kg-cal/hr)
Maximum 1977 Btu/hr = (498.2 kg-cal/hr)
Power supply fan
One fan, 92mm x 25mm, variable speed
FEMP Standby Power compliant @115V (<2W in S5 – Power Off)
Yes
EuP Compliant @230V (<1w in S5 – Power Off)
Yes
Built-in Self Test LED
Yes
Surge tolerant full ranging power supply (withstands power surges up to 2000V)
Yes
Power Consumption in sleep mode (as defined by ENERGY STAR) - Suspend to RAM (S3) (Instantly Available PC)
<6 watts
Power consumption and heat dissipation
Power consumption and heat dissipation specifications are available for multiple configurations. To review available specifications, see http://www.hp.com/go/quickspecs.
To reach zero power consumption, unplug the workstation from the power outlet or use a power strip with an on/off switch. For additional information about power-saving features, see the operating system installation instructions.
This product is in compliance with U.S. Executive Order 13221.
System fans
This workstation includes:
  • One rear system fan
  • One CPU heatsink fan
  • One power supply fan
In addition, an optional front system fan is available for special environments, and 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.
  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.
Environmental specifications
The following table lists the environmental specifications of HP Workstations.
HP Workstation environmental specifications
Temperature
Operating: 5 to 35°C (40 to 95°F)
Non-operating: -40 to 60°C (-40 to 140°F)
  note:
Derate by one degree C (1.8 degrees F) for every 305m (1,000 ft.) altitude over 1,524m (5,000 ft.).
Humidity
Operating: 8 to 85% Relative Humidity (RH), non-condensing
Non-operating: 8 to 90% Relative Humidity, non-condensing
Altitude
Operating: 0 to 3,048m (10,000 ft.)
Non-operating: 0 to 9,144m (30,000 ft.)
Shock
Operating: ½-sine: 40g, 2-3ms
Non-operating:
  • ½-sine: 160 cm/s, 2-3ms (~100g)
  • square: 422 cm/s, 20g
  note:
Values represent individual shock events and do not indicate repetitive shock events.
Vibration
Operating Random: 0.5g (rms), 5-300 Hz
Non-Operating: random: 2.0g (rms), 10-500 Hz
  note:
Values do not indicate continuous vibration.
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.
EUP compliance mode
This workstation provides EUP compliance mode capability.
When enabled, this feature lets the workstation 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 shut down in EUP compliance mode, you must use the workstation power button to restore power.
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.
Hyper-threading
This HP workstation supports Hyper-threading.
Hyper-Threading Technology (HTT), is an Intel-proprietary technology used to provide process parallelization. The operating system treats a processor with Hyper-Threading enabled as two processors instead of one. This improves performance under certain workloads by getting useful work from parts of the processor that would otherwise remain idle. Hyper-threading relies on support from the operating system as well as the CPU.
To implement hyper-threading, see The Computer Setup (F10) Utility.
SATA Power Management
SATA Power Management enables or disables SATA bus and/or device power management.
Intel Turbo Boost Technology
The HP Z Workstation series supports Intel® Turbo Boost Technology.
When the workload does not require all CPU cores, this feature diverts power from inactive cores to active cores, increasing their performance. This lets the CPU run at a higher than normal rate.
Use the workstation BIOS to enable, enhance, or disable Turbo Boost. For instructions on setting BIOS features, see The Computer Setup (F10) Utility.
HP Cool Tools
An HP workstation with Windows 7 or Windows Vista includes additional software not installed when you first start the workstation. To access or learn more about these additional preinstalled tools on the workstation that can enhance the workstation experience:
  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 a Cool Tools icon, shortcut or folder, but several of the tool programs are included, such as Performance Tuning Framework.
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 15.24 CM (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 :
  • 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 1524 M (5000 FT) elevation. There is a 1 C per 304.8 M (1000 FT) derating above 1524 M (5000 FT). So, at 3,048 M (10,000 FT), 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 :

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