Hardware Conflict Detected
The NVIDIA GeForce RTX 4090 (304.0mm) exceeds the Corsair 280X RGB's 300.0mm maximum GPU length.
Detailed Compatibility Analysis
Will the NVIDIA GeForce RTX 4090 fit inside a Corsair 280X RGB?
Bad news: The math does not check out. The Corsair 280X RGB only supports up to 300.0mm, meaning the massive 304.0mm NVIDIA GeForce RTX 4090 is going to crash into your front fans.
Interference
The front fan brackets or drive cages of the Corsair 280X RGB will block the NVIDIA GeForce RTX 4090 from seating properly. You lack 4.0mm of essential clearance.
Next Steps
Do not attempt to modify the Corsair 280X RGB with a Dremel. It is highly recommended to select a different chassis with at least 319.0mm of total clearance to allow for proper cable routing.
Frequently Asked Questions
Does the Corsair 280X RGB support vertical GPU mounting?
Many modern cases support vertical mounting via an optional PCIe riser cable. However, mounting a thick card like the NVIDIA GeForce RTX 4090 vertically can push the fans dangerously close to the glass side panel, choking airflow. Always check the case manual for specific slot spacing.
What power supply (PSU) do I need for the NVIDIA GeForce RTX 4090?
You should refer to the official manufacturer recommended PSU wattage. When building in the Corsair 280X RGB, ensure your PSU is not longer than the case's basement shroud clearance, especially if you plan to keep the hard drive cage installed.
How do I calculate clearance if I add a front liquid cooler?
If you install an AIO liquid cooler in the front of the Corsair 280X RGB, you must subtract the thickness of the radiator (usually 27mm) and the fans (usually 25mm) from the total 300.0mm clearance.