Witcher 3 Next-Gen keeps crashing with full Path Tracing on my Manli RTX 5090 D v2, should I tweak VRAM clocks?

I was exploring the dark alleys of Novigrad when the screen suddenly filled with purple artifacts and the game crashed to desktop—totally nerve-wracking. It turns out the GDDR7 memory on the Manli Star Ship RTX 5090 D v2, despite having 24GB, was hitting a 0.2ns sync failure at default OC clocks during heavy lighting loads. I tried dropping the ray tracing to 'Medium' first, but the visual downgrade was pathetic and it still crashed occasionally, which was just frustrating. I eventually used a tuning tool to underclock the core by 30 MHz and bumped the memory voltage from 1.35V to 1.38V to stabilize the signal. In 3DMark stress tests, the errors went from twice an hour to zero, and I've gone 10 hours without a single crash. I actually lost about 5 FPS when I first lowered the clocks, but I got them back by enabling the XMP profile for my system RAM. The GPU sits at 65-72℃ and VRAM at 78-84℃. The system logs are clean now, and the input response feels incredibly tight.