-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- ProDesk 600 G4 MT Graphics Card Upgrage

Create an account on the HP Community to personalize your profile and ask a question
11-27-2023 07:36 PM
This computer has its original 250 watt power supply, but I saw a helpful thread indicating that a 400 watt power supply should be a compatible fit: ProDesk 600 G4 MT
The reason for the power increase is that I wanted to add a graphics card, maybe something like a SAPPHIRE Radeon RX 6600 EAGLE 8GB GDDR6 Graphics Card which reportedly has a TDP of 132 watts. I'm optimistic that a 400 watt power supply should be enough for this system and graphics card, but am I overlooking anything important like power adapter cables (presumably a 6 pin to 8 pin PCIe power adapter) or voltage rail limitations with this combination of equipment?
11-27-2023 08:01 PM
Upgrading the graphics card in a HP ProDesk 600 G4 MT can be a good way to enhance its graphical performance. However, there are some important considerations and potential limitations that you should be aware of before proceeding with the upgrade:
Power Supply Compatibility:
- Upgrading the power supply to a higher wattage, such as 400 watts, is a good idea when adding a more powerful graphics card. It's important to ensure that the physical dimensions of the new power supply fit into the case of the ProDesk 600 G4 MT.
Power Connector Compatibility:
- Check if the new power supply has the necessary power connectors for both the motherboard and the graphics card. The SAPPHIRE Radeon RX 6600 EAGLE typically requires additional power through PCIe power connectors. You mentioned a 6-pin to 8-pin PCIe power adapter; make sure the power supply can accommodate this.
Physical Space:
- Confirm that the new graphics card can physically fit into the case of the ProDesk 600 G4 MT. Measure the available space and compare it with the dimensions of the graphics card.
BIOS Compatibility:
- Check if the system's BIOS supports the new graphics card. Some systems may need a BIOS update to recognize and work properly with newer graphics cards.
Voltage Rails:
- Ensure that the power supply provides stable voltage to all necessary components. Some graphics cards may have specific requirements for stable power delivery.
Cooling:
- Consider the cooling requirements of the new graphics card. Make sure that the case has sufficient airflow to keep the graphics card and other components cool.
Operating System Compatibility:
- Ensure that the operating system supports the new graphics card. In most cases, modern graphics cards are compatible with Windows, but it's always good to check.
Driver Installation:
- Download the latest graphics card drivers from the manufacturer's website and install them after installing the new graphics card.
Before making any purchases, I recommend checking the official HP support documentation for the ProDesk 600 G4 MT or contacting HP support directly to verify the compatibility and get specific recommendations for upgrading the graphics card and power supply in your particular system.
Keep in mind that modifying the hardware in a pre-built system may void the warranty, so it's essential to consider the potential impact on warranty coverage.
11-27-2023 08:10 PM - edited 11-27-2023 08:13 PM
Yip, an HP ProDesk 600 G4 MT was one of my legacy HP desktop upgrade projects, and you can indeed transform this sleepy office desktop into a lean-mean gaming machine: Solved: Upgrading to an HP ProDesk 600 G4 MT - HP Support Community - 8610054. The 400-watt power supply I mentioned (fitted with one 8-pin PCIe power cable) with p/n: 942332-001 is indeed compatible, and it could easily power an RX 6600 graphics card which needs just one 8-pin PCIe power cable.
Kind Regards,
NonSequitur777