1. Introduction
This manual provides essential information for the setup, operation, maintenance, and troubleshooting of your HP Z4 G4 Workstation. Please read these instructions carefully before using the product to ensure proper functionality and longevity.

Image 1.1: Front view of the HP Z4 G4 Workstation. The workstation features a black chassis with a perforated front panel for airflow, housing various front I/O ports and an optical drive bay.
2. Setup
2.1 Unboxing and Placement
- Carefully remove the workstation from its packaging. Retain all packaging materials for future transport or service.
- Place the workstation on a stable, flat surface with adequate ventilation. Ensure no vents are obstructed.
- Avoid placing the workstation near heat sources or in direct sunlight.
2.2 Connecting Peripherals
- Power Cable: Connect the power cable to the workstation's power input and then to a grounded electrical outlet.
- Monitor: Connect your monitor(s) to the graphics card's display ports (Mini Display Ports). The Nvidia Quadro P400 supports up to three displays.
- Keyboard and Mouse: Connect your keyboard and mouse to the available USB ports on the front or rear of the workstation. PS/2 ports are also available on the rear.
- Network: Connect an Ethernet cable to one of the 1GbE LAN ports for wired network access.
- Audio: Connect speakers or headphones to the audio output port on the rear or the headset port on the front.

Image 2.1: Rear view of the HP Z4 G4 Workstation, showing various connectivity ports including USB, Ethernet, audio jacks, and PS/2 ports.
2.3 Initial Power On
- Press the power button located on the front of the workstation.
- The system will boot into Windows 11 Pro. Follow the on-screen instructions for initial operating system setup, including user account creation and network configuration.
3. Operating Instructions
3.1 Power On/Off
- To Power On: Press the power button on the front panel.
- To Shut Down: In Windows 11 Pro, click the Start button, then Power, and select "Shut down."
- To Restart: In Windows 11 Pro, click the Start button, then Power, and select "Restart."
3.2 Front I/O Ports
The front panel provides convenient access to frequently used ports:
- Power Button: With power/fault LED indicator.
- Headset Audio Port: For connecting headphones with a microphone.
- USB 3.1 G1 Type-A Ports (x4): One port supports charging (1.5A at 5V).
- Optical Drive: DVD drive for disc media.

Image 3.1: Close-up of the HP Z4 G4 Workstation's front panel, highlighting the power button, USB ports, and optical drive.
3.3 Rear I/O Ports
The rear panel offers additional connectivity options:
- USB 3.1 G1 Type-A Ports (x6): For connecting various USB devices.
- 1GbE LAN Ports (x2): For wired network connections.
- Audio Ports: One Line out, one Line in.
- PS/2 Ports: One for mouse, one for keyboard.
- Rear Power Button: An additional power control.
4. Maintenance
4.1 Cleaning
- Regularly clean the exterior of the workstation with a soft, dry cloth.
- Use compressed air to clear dust from ventilation grilles and ports. Ensure the workstation is powered off and unplugged before cleaning.
- Do not use liquid cleaners directly on the workstation.
4.2 Software Updates
- Keep your Windows 11 Pro operating system updated by regularly checking for updates through the Windows Update settings.
- Ensure graphics drivers (Nvidia Quadro P400) and other system drivers are kept current for optimal performance and stability.
4.3 Internal Components and Upgrades
- The workstation is designed for professional use and may be upgraded. Consult a qualified technician for internal component upgrades such as RAM (DDR4), additional storage (NVMe M.2 SSD, SATA HDD), or graphics cards.
- Always power off and unplug the workstation before opening the chassis.
5. Troubleshooting
5.1 Common Issues and Solutions
- No Power:
- Ensure the power cable is securely connected to both the workstation and the electrical outlet.
- Verify the power outlet is functional.
- No Display:
- Check that the monitor is powered on and connected correctly to the graphics card's display ports.
- Ensure the correct input source is selected on your monitor.
- System Slowdown:
- Close unnecessary applications.
- Check for sufficient free space on the primary drive (512GB NVMe M.2 SSD).
- Run a system scan for malware or viruses.
- Ensure Windows and drivers are up to date.
- Peripheral Not Responding:
- Try connecting the peripheral to a different USB or PS/2 port.
- Restart the workstation.
5.2 Seeking Further Assistance
If you encounter issues that cannot be resolved with the above steps, please refer to the support section for contact information.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | HP |
| Model Number | Z4 G4 |
| Operating System | Windows 11 Pro 64-bit |
| Processor | Intel Xeon W-2133 (6-Core, 3.6GHz base, up to 3.9GHz Turbo) |
| Memory (RAM) | 64GB DDR4 |
| Storage | 512GB NVMe M.2 SSD (boot) + 2TB HDD (storage) |
| Graphics Card | Nvidia Quadro P400 2GB (3x Mini Display Ports) |
| Optical Drive | DVD |
| Front I/O | Power button, 1 Headset audio port, 4x USB 3.1 G1 Type A (1 charging) |
| Rear I/O | 6x USB 3.1 G1 Type-A, 2x 1GbE LAN ports, Audio (1 Line out, 1 Line in), 1 PS/2 mouse port, 1 PS/2 keyboard port, 1 Rear power button |
| Power Supply | 750W PSU (90% efficiency) with 2x 6-pin graphics power adapters |
| Dimensions (Item) | 15.2 x 6.65 x 15.2 inches |
| Weight | (Not specified in provided data) |
| Connectivity | Ethernet (wired), Wi-Fi (802.11ax), Bluetooth |
| Security Features | Windows Defender, Windows Hello, Secure Boot |
7. Warranty and Support
7.1 Product Warranty
This HP Z4 G4 Workstation is a renewed product. It is tested and certified to look and work like new. It ships with a minimum 90-day warranty. For specific details regarding your warranty coverage, please refer to the Amazon Renewed program terms and conditions or contact your seller.
7.2 Technical Support
For technical assistance or support, please contact the seller, StallionTek Certified, through your Amazon order details. You may also find additional resources and support documentation on the official HP support website.