GPU water block ek water blocks EK-Quantum Vector3 TUF RTX 5090 RGB — graphics card cooling, full-cover compatible

EK-Quantum Vector3 TUF RTX 5090 RGB is a full-cover GPU water block engineered for direct liquid cooling of compatible RTX 5090 TUF edition graphics cards. The block channels coolant over the GPU die, memory modules and VRM area to lower operating temperatures and reduce fan noise when installed in a custom watercooling loop. Integrated RGB lighting offers configurable illumination that matches system lighting schemes while the full-cover design preserves PCB access points required for installation and maintenance.

Advantages

This full-cover water block delivers improved thermal transfer by making direct contact with critical components—GPU, VRM and memory—helping to maintain lower temperatures during sustained loads and overclocking. The integrated RGB lighting provides visual customization without compromising cooling performance. Precision-machined cold plate and optimized coolant channels balance flow restriction and heat dissipation to suit high-flow custom loops. The block supports standard fittings and mounting procedures used in enthusiast-grade watercooling builds.

Suitable for

• Custom liquid-cooled gaming PCs using an RTX 5090 TUF edition graphics card
• High-performance workstations requiring sustained thermal management under heavy GPU loads
• Overclocking setups where lower GPU and memory temperatures increase stability
• Silent PC builds that reduce fan usage by shifting heat to a radiator-based loop

Key specifications

• Full-cover design that cools GPU die, VRM area and memory modules
• Direct-contact cold plate with precision-machined surface for enhanced heat transfer
• Optimized micro-channel and flow path architecture for balanced performance and flow
• Integrated RGB lighting compatible with common motherboard and controller ecosystems
• Standard G1/4" threaded ports for fittings (compatible with typical watercooling hardware)
• Materials: corrosion-resistant metals and durable top material designed for long-term operation

How to use

Prepare the compatible RTX 5090 TUF edition graphics card by removing the factory cooler following the manufacturer’s service instructions. Clean the GPU die, memory and VRM contact areas, then apply an appropriate thermal interface material on the GPU die and thermal pads on memory and VRM as specified. Mount the EK-Quantum Vector3 TUF RTX 5090 RGB onto the PCB using the supplied mounting hardware, ensuring even screw torque to maintain uniform contact. Connect inlet and outlet fittings to your custom loop using appropriate tubing and secure the connections. Configure the RGB lighting through the compatible controller or motherboard header as required. Pressure-test and leak-check the loop before powering the system.

Recommendations

Use compatible high-quality coolant and corrosion inhibitors, follow recommended torque values for mounting screws, and perform a leak test on the loop before full operation. Ensure adequate radiator capacity and pump flow when adding a high-performance GPU block to maintain optimal temperatures.