sapphire nitro vega 64 fans not spinning

Reference Vega 64 cards ship with a 1,274MHz base clock and 1,546MHz boost clock, though those limits can be exceeded if the card stays cool. Sapphire ostensibly engineered this for maximum overclocking potential in case you happen to get a golden Vega GPU, but the Nitro+ Radeon RX 64 Limited Edition ships with a decent factory overclock in place, too. Whew! Sapphire sure stuffed this card with cooling potential, and as you’ll see in the performance section later, it pays off when it comes to the biggest flaws in reference Vega 64 cards. The Nitro+ Radeon RX 64 Limited Edition backplate. And yes, you can disable the lighting completely if illuminated PC gear gets you grumpy. The Sapphire name on the edge of the Nitro+ Limited Edition glows as well, along with the Nitro logo adorning the card’s full-length backplate.

Those house RGB LEDs that can be customized with a new version of Trixx. You may have noticed the clear acrylic around the two fans at the card’s extremities. That header can power up to two case fans, which then take orders from an on-card hardware controller that monitors five temperature sensors on the graphics card’s PCB to ramp fan speeds up and down as needed. Turbine-X adds a PWM fan header to the rear end of the card’s custom PCB, similar to what you find on ROG Strix graphics cards that support Asus’ FanControl technology. Sapphire is also introducing “Turbine-X” with the Nitro+ Radeon RX 64 Limited Edition.

The fans support Sapphire’s Fan Check and Quick Connect initiatives, allowing you to check their health in Sapphire’s Trixx utility and quickly pop out individual fans if one needs replacing.

They won’t kick into action until the GPU temperature hits 55 degrees Celsius, and since the Nitro+ Limited Edition doesn’t get anywhere near that hot except during gaming, the card stays utterly silent during normal desktop use, unlike reference Vega cards. Not one, not two, but three large fans sit atop the heatsink.

Sapphire nitro vega 64 fans not spinning