Graphics cards have gotten larger than ever, with Nvidia's RTX 4090 and RTX 5090 models weighing more than 2 kilograms and sometimes sporting enormous aftermarket cooling fans. The humble PCI slots on motherboards were't designed to hold them sideways, but that's often how they are. In the age of overstuffed, poorly-designed desktop PC cases that put the Mini in ITX, the result is sagging GPUs.

The problem has gotten to the point that the ASUS ROG Astral RTX 5090 card added a Bosch Sensortec BMI323 inertial measurement unit (IMU) to provide an accelerometer and angular rate (gyroscope) measurements, as reported by [Uniko's Hardware] (in Chinese, see English [Videocardz] article).

There are so-called anti-sag brackets that provide structural support to the top of the GPU where it isn't no

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