Introduction
This manual provides essential information for the safe and efficient use of your HP Z4 G4 Workstation. It covers setup, operation, maintenance, troubleshooting, and detailed specifications. Please read this manual thoroughly before operating the workstation and retain it for future reference.
Safety Information
- Power Supply: Use only the power supply provided with the workstation or an approved replacement. Ensure the power outlet is properly grounded.
- Ventilation: Do not block ventilation openings. Ensure adequate airflow around the workstation to prevent overheating.
- Liquid Exposure: Keep the workstation away from liquids. Do not operate with wet hands.
- Servicing: Refer all servicing to qualified service personnel. Do not attempt to open or repair the workstation yourself, especially when powered on.
- Static Electricity: Take precautions against electrostatic discharge (ESD) when handling internal components.
Package Contents
Verify that all items listed below are present in your package:
- HP Z4 G4 Workstation (W-2135 Six Core 3.7Ghz Processor, 128GB DDR4 ECC RAM, 1TB NVMe M.2 SSD, DVDRW Optical Drive, Nvidia Quadro P1000 4GB GDDR5 Graphic Card, 465W Power Supply, Windows 11 Professional pre-installed)
- Power Cable
Note: Mouse and Keyboard are not included and must be acquired separately.
Product Overview

Figure 1: Rear Panel Overview
This image displays the rear panel of the HP Z4 G4 Workstation, highlighting the various input/output ports, including USB, Ethernet, audio jacks, and video outputs (DisplayPort, HDMI), along with the power input and ventilation grilles.

Figure 2: Internal Components Overview
This image provides an internal view of the HP Z4 G4 Workstation, showcasing the motherboard, RAM slots populated with memory modules, the CPU heatsink, NVMe M.2 SSD slot, and drive bays for additional storage.
Setup
- Unpack: Carefully remove the workstation and all accessories from the packaging.
- Placement: Place the workstation on a stable, flat surface with adequate ventilation space around it.
- Connect Peripherals:
- Connect your monitor(s) to the appropriate video output ports (DisplayPort or HDMI) on the graphics card.
- Connect your keyboard and mouse to the available USB ports.
- Connect an Ethernet cable to the network port for internet access, if desired.
- Power Connection: Connect the provided power cable to the workstation's power input and then to a grounded electrical outlet.
- Initial Power On: Press the power button located on the front of the workstation. The system will boot into Windows 11 Professional.
Operating Instructions
Powering On/Off
- To Power On: Press the power button on the front panel.
- To Shut Down: In Windows 11, click the Start button, then the Power icon, and select "Shut down."
- To Restart: In Windows 11, click the Start button, then the Power icon, and select "Restart."
- Sleep Mode: In Windows 11, click the Start button, then the Power icon, and select "Sleep."
Basic Windows 11 Navigation
- Start Menu: Access applications, settings, and power options.
- Taskbar: Pin frequently used applications and view open programs.
- File Explorer: Manage files and folders.
- Settings: Configure system preferences, network, and devices.
Maintenance
- Cleaning:
- Regularly clean the exterior with a soft, damp cloth.
- Use compressed air to clear dust from ventilation openings. Ensure the workstation is powered off and unplugged before cleaning.
- Software Updates: Keep Windows 11 and all drivers updated to ensure optimal performance and security. Check for updates regularly through Windows Settings.
- Data Backup: Regularly back up important data to an external drive or cloud storage to prevent data loss.
- Internal Cleaning: For advanced users, periodically clean internal components (e.g., CPU heatsink, fan blades) from dust buildup. This should only be done by experienced individuals after powering off and unplugging the system.
Troubleshooting
No Power
- Ensure the power cable is securely connected to both the workstation and the electrical outlet.
- Verify the power outlet is functional by plugging in another device.
- Check the power supply unit (PSU) switch, if present, to ensure it is in the 'On' position.
No Display
- Confirm the monitor is powered on and connected correctly to the graphics card's video output.
- Try a different video cable or monitor if available.
- Ensure the correct input source is selected on your monitor.
System Slowdown or Freezing
- Close unnecessary applications running in the background.
- Check Task Manager (Ctrl+Shift+Esc) for high CPU, RAM, or disk usage.
- Ensure the system has adequate ventilation to prevent thermal throttling.
- Run a full system scan for malware or viruses.
Specifications
| Brand | HP |
| Model Number | Z4 G4 |
| Operating System | Windows 11 Pro |
| CPU Model | Intel Xeon W-2135 (6 Cores, 3.7 GHz) |
| RAM Memory | 128 GB DDR4 ECC SDRAM |
| Storage | 1 TB NVMe M.2 SSD |
| Graphics Card | Nvidia Quadro P1000 4GB GDDR5 (Dedicated) |
| Optical Drive | DVDRW |
| Power Supply | 465W |
| Connectivity | Ethernet, USB, DisplayPort, HDMI |
| Color | Black |
Warranty and Support
This HP Z4 G4 Workstation is a renewed product. Warranty and support are typically provided by the reseller or the Amazon Renewed program. Please refer to your purchase documentation or the Amazon Renewed policy for specific warranty terms and conditions.
For technical assistance, it is recommended to first consult the troubleshooting section of this manual. If further assistance is required, contact the seller from whom the product was purchased or refer to the official HP support website for general product information and drivers.
- Amazon Renewed Support: Visit Amazon Renewed Help
- HP Official Support: Visit HP Support Website