[SOLVED] Vega 64 Memory Frequency Stuck!

davew1860

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Feb 6, 2019
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Whenever I run the Heaven Benchmark or play Battlefield V, for instance, my memory frequency sticks at 500MHz or 800MHz.

As you can see in my AMD WattMan settings below, I want the memory frequency to be at 1075MHz.

Why is it downclocking? My temperatures are all under 75°C.

GPU states 1-7 MHz, respectively: 977, 1067, 1122, 1182, 1382, 1512, 1607
GPU states 1-7 mV, respectively: 800, 835, 870, 905, 940, 975, 1025
Power limit: 50%
Memory state 3 MHz: 1075
Memory state 3 mV: 975

CPU: AMD Ryzen 7 1700X
Motherboard: ASUS ROG Strix B450-F Gaming
Video card: SAPPHIRE Radeon RX Vega 64 8GB (with 19.4.1 driver version)
RAM: G.SKILL TridentZ RGB Series 16GB
SSD's: SanDisk Ultra 3D SSD 512GB / Samsung SSD 860 EVO 250GB
HDD's: Western Digital Black 7200 RPM 1TB / Seagate BarraCuda 7200 RPM 250GB
PSU: CORSAIR RM850x White 850W
 
Have you tried to do a CLEAN re-install of the AMD Radeon drivers, including Wattman ? Use the DDU tool to do a re-install. Remove all previous saved profile, and other settings for the AMD software. Restore everything back to default value.

https://www.guru3d.com/files-details/display-driver-uninstaller-download.html

When did this problem start to occur ? Try to ROLLBACK the GPU drivers, if need be.
 
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Solution
You'd be lucky to get 1075 in a Vega 64 overclock.
You should pretty much leave that at default and OC the Base clock - not that you gain much more than 5% from an OC with these cards.

The card is actually stable at 1075MHz, so I did luck out on the memory frequency.

However, I actually downclocked the core frequencies by 1.5%. Otherwise, spikes in these frequencies would cause crashes in games.

After applying all of my revised settings below - including increasing my fan curve - I experience a 10% increase in average FPS for Battlefield V, without any crashes. My resolution is 1080p, and I use ultra settings.

My revised WattMan settings are as follows:

GPU states 1-7 MHz, respectively: 977, 1067, 1122, 1182, 1382, 1512, 1607
GPU states 1-7 mV, respectively: 800, 840, 880, 920, 960, 1000, 1050
Power limit: 50%
Memory state 3 MHz: 1075 (it actually works now!)
Memory state 3 mV: 975
 
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Have you tried to do a CLEAN re-install of the AMD Radeon drivers, including Wattman ? Use the DDU tool to do a re-install. Remove all previous saved profile, and other settings for the AMD software. Restore everything back to default value.

https://www.guru3d.com/files-details/display-driver-uninstaller-download.html

When did this problem start to occur ? Try to ROLLBACK the GPU drivers, if need be.

I DID do this. First, I did it OUT of safe mode, which did nothing for me. Second, I did it IN safe mode, which may have helped me. In safe mode, the reinstallation appeared to make additional changes.

I am now hitting a stable 1075MHz memory frequency! However, before achieving this, I did make adjustments to my GPU voltages, which I show above. I increased them.

Hence, I don't know what solved my problem - reinstalling the driver in safe mode or increasing my GPU voltages or perhaps both. What do you think?

At any rate, thanks!
 
I don't know what solved my problem - reinstalling the driver in safe mode or increasing my GPU voltages or perhaps both. What do you think?

More likely because of the drivers, after reinstalling them via the DDU tool. It could be the voltage as well, but I'm more inclined towards the driver being the culprit before..
 
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