Okay, got Open Hardware Monitor installed and running. Currently loading a game to play and put some load on the card.
I can already tell what will happen: once the temperature hits a certain value, the fans will start spinning. In fact, the card is working flawlessly, it's just that I have absolutely no control over when the fans will engage.
Here's what the Sapphire spokesman told me:
"The problem isn't a malfunction of the card but the fact that the AMD drivers intervene.
As the matter stands, the fan control of the Vega-Cards sadly can't be manually adjusted.
However it is possible that this will change in further updates."
Here's what Open Hardware Monitor shows after a short sequence of gaming:
The fans engage at a temperature above 55°C it seems. They than keep cooling the card until temps are below this threshold. Once they rise again, the procedure repeats. This leads to an annoying howling from the case every few minutes. Is there no way to just lock the fan speed at say 30%? Did so with my old Sapphire Fury, worked flawlessly!
Target temperature is the temperature the fans will become engaged...at 35c they should run all the time at about 1200rpm...and increase automatically as needed to keep the temperature under the 'Max' temperature you set. There is no 'Maximum' fan speed to set. I find 45c Target and 75c Maximum to be a good setting . The default 'Max' is 85c. Setting the 'Target' higher will result in no fans at lower temps and full fans at whatever you set the minimum at like your first screenshot: The fans don't become engaged until the card reaches 70c and have to run like crazy to lower the temperature from 85c.
Alright, thank you for the clarification. Here's what I just did:
1. Did a factory reset like you suggested in a previous post, then reboot.
2. Setting the target temperature to 35°C and the maximum temperature to 75°C, also raising power limit to 50%.
After hitting "Apply", the fan settings in the left panel again switched to "manual" on their own. The current temperature is 10°C higher than the target temperature, the fans however stand still.
Seems Sapphire has a newer fan control application.
To drive the most demanding scenarios in gaming, the SAPPHIRE NITRO+ Radeon RX Vega cards come factory-overclocked. The NITRO+ RX Vega 64 model features a GPU with 4096 Stream Processors running with 1611 MHz Boost Clock. For the NITRO+ RX Vega 56, the chip features 3584 Stream Processors clocked in Boost at 1572 MHz. Both models come equipped with two stacks of 2nd generation High Bandwidth Memory, featuring 8 GB in total. The memory is clocked at 945 MHz – 1890 MHz Effective (Vega 64) and 800 MHz – 1800 MHz Effective (Vega 56). With these clocks, the SAPPHIRE NITRO+ RX Vega models achieve up to 7% better framerate compared to reference cards. If needed, both models can be easily switched to a 2nd BIOS for energy-saving Efficiency Settings using a hardware switch on the side of the card.
A custom-designed cooling solution used on two new NITRO+ RX Vega cards is SAPPHIRE’s most efficient cooler to date. To get the operational temperatures of the GPUs down to the targeted 70°C, SAPPHIRE has brought back its innovative vapor chamber technology made famous through SAPPHIRE’s Vapor-X series of graphics cards. Using this instead of the copper base on the GPU and HBM2 memory has lowered temperatures by up to 5°C. The vapor chamber is combined with a set of six nickel-plated heatpipes (three 8 mm and three 6 mm) and a substantial, densely-packed heatsink. Robust VRM cooling is achieved using a separate module with a dedicated set of two 6 mm heatpipes. Finally, heat is dissipated by a trio of efficient fans – two, slightly bigger, on the sides, running anticlockwise, and a smaller middle fan running clockwise to ensure optimal airflow. With the board featuring 14 phase digital power design and a powerful vapor chamber cooling system, SAPPHIRE NITRO+ has been designed to unleash the full potential of the AMD RX Vega GPU.
All three newly designed fans feature dual ball bearings for longer life and SAPPHIRE Quick Connect 2 technology for convenient fan swapping or service. By default, the fans start precisely at 56°C for the system to remain quiet under light load.
An original SAPPHIRE-designed PCB includes the brand-new Turbine-X system that can control up to two external PWM fans mounted inside the PC’s chassis. A dedicated hardware controller on the card intelligently adjusts the speed of connected fans based on the reads from five thermal sensors included on the PCB to improve the system’s overall airflow.
There is no application available for the Vega cards by Sapphire. Where there exists a tool for the 5XX-Series called "Sapphire TriXX OC Utility", there is now such download option for the Vega cards. The current version of their "Sapphire TriXX OC Utility" is 6.4, there was however already version 6.5 available to download, which was later withdrawn again by Sapphire. When asked about it, Sapphire claimed that "there was a small bug in FanCheck". They stated that they were working on a fix and looking for a re-release as soon as possible, however this was on October 2017, and since then, nothing changed.
I wrote to AMD now. Hopefully this gets addressed.
Can you try setting the minimum fan speed to 1000RPM and the maximum fan speed to 1100RPM and see if that keeps the fan speed close to your 1000RPM target?