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Vega 64 stuck at 500/800 Mhz on vram

delvey

delvey

delvey

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Joined
18 Aug 2014
Posts
366
Just completed a fresh install of windows 10 after buying a new SSD. I have noticed that the VRAM clock never goes past 800mhz, and is normally stuck at 500mhz. Same with the GPU clock, never hits anywhere near 1650mhz as it should. Thermals are always good, at 50 Celcius or so. Anyone any ideas why? I have changed the speed and voltages separately. Even setting the voltage to 1250 mg doesn't solve any issues as other places as suggested. Using the latest Radeon drivers.
 
TBH the only time I've had this has been to do with setting the memory voltage too low. 950mV and below can lock mem to 800MHz and around 800mV locks it to 500MHz iirc. Not sure if it still does this for me or not as I just got into the habit of setting 1045Mhz/951mV on the mem as that has always worked for me.

How does yours behave at stock and on the default profiles?
 
chaosophy said:
TBH the only time I've had this has been to do with setting the memory voltage too low. 950mV and below can lock mem to 800MHz and around 800mV locks it to 500MHz iirc. Not sure if it still does this for me or not as I just got into the habit of setting 1045Mhz/951mV on the mem as that has always worked for me.

How does yours behave at stock and on the default profiles?
Click to expand...
This is on the default profiles. I've changed the bios switch as well. No matter what I do it is stuck at 500mhz most of the time. I think I will try an older driver.
 
delvey said:
This is on the default profiles. I've changed the bios switch as well. No matter what I do it is stuck at 500mhz most of the time. I think I will try an older driver.
Click to expand...

How meany displays do you have connected? Also what cables are used and resolutions and refresh rate?

Some multi display configuration can put the GPU memory into 3D mode I have had this with a R9 290 but my Vega 64 had been fine.
With two displays connected by displayport main is 1440p 144hz and second is 1080p @60hz
 
shankly1985 said:
How meany displays do you have connected? Also what cables are used and resolutions and refresh rate?

Some multi display configuration can put the GPU memory into 3D mode I have had this with a R9 290 but my Vega 64 had been fine.
With two displays connected by displayport main is 1440p 144hz and second is 1080p @60hz
Click to expand...
One 144hz 1080p connect via display port. I will have a look in the settings for 3D mode
 
Solved it,
For some reason V sync is causing the. Turning it off in game (which I thought it already had been) solved the issue. Now to overclock
 
delvey said:
Solved it,
For some reason V sync is causing the. Turning it off in game (which I thought it already had been) solved the issue. Now to overclock
Click to expand...

Great you sorted it I missed understood the OP I was thinking this was the high memory when idle, you was getting this while gaming.
 
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