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RX 5700 XT - 75 Hz/144 Hz/non-standard refresh rates causing VRAM clock to run at max

I haven't experienced this issue
 
R-T-B said:
Guilty I am.

Limited phone plan I have.
Click to expand...
I use opera mini and turn off images to save data in mobile. Then Firefox with it's uBlock Origin support when in WiFi.

Btw :shadedshu:
 
Was going to post a question up, but this could be my issue.
Just got a new Ultra wide 1440p monitor, running 100Hz. Mem on RX 5700XT always clocked to 1750, is this normal, is it correct, is there a way of stopping it.
Card running in 50s C all the time when idle.
Try to keep responses lowish tech.

Cheers.
 
Khonjel said:
Did they now? :shadedshu:

https://www.reddit.com/r/nvidia/comments/9nmsqv
Click to expand...

F**k off with your whataboutism.

2018-09-18: W1zz identifies high idle/multi-monitor clocks and hence power draw on RTX 2080/2080 Ti
2019-09-27: NVIDIA issues a driver update that fixes the high idle clocks, but not in multi-monitor
2018-11-08: NVIDIA issues a driver update that fixes the multi-monitor clocks too

NVIDIA: under 2 months to completely fix a high multi-monitor power consumption issue on 2 SKUs.

Meanwhile, in the red camp...

Shortly after the Big Bang: people complain about high idle/multi-monitor power draw with AMD GPUs
After the heat death of the universe: AMD actually acknowledges, but does not fix, the issue. Explanation given is "drivers r hard mkay?"
 
What is my monitor’s optimal pixel clock that allows gpu vram to run idle?
Because now monitor is at 75 hz. and Vram is at 1750 Mhz. When i set monitor to 60 hz the Vram idles to 200. Monitor is Q3279VWD8 and amd 5600 xt.


Will there be any fix in drivers ever so monitors can run with idle clocks with monitors running nonstandard timings?


explorer_2020-02-12_11-05-15.png



I can edit this value however with CRU (custom resolution utility)
I made some changes, and monitored the memory clocks of vram, still it is at highest setting.
 
OP postfixed my issue on 20.4.2, 20.5.1 & 20.7.1 for my rx 590 <3. I wasn't going to write a bug report anyways, as i have a card with modded bios & driver.
Monitor = AOC 24G2 - 24inch 144hz ips, was also not having issues @120hz

saves about 6 watts idle :)
 
I got a new monitor (144 Hz FreeSync) and, yup, my VRAM is now pegged at 1750 MHz where it wasn't before.
 
FordGT90Concept said:
I got a new monitor (144 Hz FreeSync) and, yup, my VRAM is now pegged at 1750 MHz where it wasn't before.
Click to expand...

Whats the brand and model of the monitor? And could you post a CRU screenshot of your extension blocks?
Technically this is still AMD’s driver not reading the monitor timings like how NVIDIA and Intel drivers do, but it can be easily fixed.
 
Just got my 5700XT yesterday, and I'm noticing max memory clock 1750 all the time; my monitor runs 3440x1440@60hz.

Only workaround that has been successful is to set monitor to 50hz, and it'll go back to normal 200.

This is quite annoying, and I hope it gets fixed in a driver update.
 
Cheeseball said:
Hey guys,

If you're in the same situation as I am with my RX 5700 XT where the memory clock is running at maximum speed at 144 Hz even though you're idle (desktop, non-3D software, etc.), it looks like u/BrainMuncher was able to deduct why this happens and a possible fix:

https://www.reddit.com/r/Amd/comments/dr5bxt

I will be trying this out with my Dell monitor after work. I've been running at 120 Hz with the monitor not overclocked. Hopefully changing the pixel clock would allow me to hit 144 Hz (or near 144 Hz) and make use of the monitor as it was designed.
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So.. I have an ASUS VG248 @ 165hz and a 2nd monitor at 60hz with a 5700xt sapphire nitro+. my vram clocks are always max how do i fix this with CRU? what do I do?
 
johnsilverknight said:
So.. I have an ASUS VG248 @ 165hz and a 2nd monitor at 60hz with a 5700xt sapphire nitro+. my vram clocks are always max how do i fix this with CRU? what do I do?
Click to expand...

Run at 120hz or lower on the desktop.
 
For those that are worried about this issue> If you can control your fans it becomes a non issue. My card idles on the 40s and I applied a 35% angle fan curve. Mine is attached to a 49" 4K 60hz panel and a 32" 1440P 165hz panel. Hopefully we are going to see them fix this but if I remember correctly Eyefinity used to suffer from this issue too.
 
Problem is still here. I'm using Sapphire 5600XT with G27C4. Temporary workaround is using refresh rates lower than native refresh rate (60 Hz if native is 75 Hz, 144 Hz for 165 Hz in my case).
 
Same here with my Asus RX 5700 XT on an LG 32" 144Hz @ 2560 x 1440.
rx5700xt-vram.jpg


Duh! I also just realised that since I bought the monitor a couple of months ago I wrongly assumed that the refresh rate would adjust automatically. However, I forgot to change it from 60Hz to 144Hz in Windows display properties. I also downloaded the monitor profile and now it's running at 144hz.
However, this doesn't solve the permanent VRAM clock speed issue.
 
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I created a custom resolution in Radeon software and used CVT Reduced Blanking at 142Hz (2560x1440) and the VRAM clock speed at idle is now 200Hz. Colour depth won't go higher than 6bpc though and idle temps have gone down about 10c.
rx5700xt-vram-clock-gpu-z.png
cvt-reduced-blanking.png


rx5700xt-vram-clock.jpg


I don't really understand the terminology or the implications of these changes, so if anyone could shed some light, I'd be most grateful.
 
After spending many hours with CRU, I gave up trying to fix the issue at 75hz and spent 1 minute making a Custom Resolution in Radeon Settings at 74hz with CVT and problem solved.
 
If you use 2 monitors with different refresh rates you will have the card idling with higher than usual clocks.
 
Interestingly, I have been having this issue with my 5700 (flashed to XT) for about 3 driver versions. Prior to that, the mem clock would idle down to 100MHz, but since that one driver, the memory stays pegged at 1760. I have a Dell UltraSharp U2719D, 1440p @ 60Hz. I initially thought perhaps it had something to do with the built in MST hub of the display (How to Daisy Chain Multiple Monitors Using DisplayPort Multi-Stream Transport (MST)), but even disabling this on the panel left me with 1760MHz at all times. I think there is a driver bug where if you have 1440p or more, the VRAM just clocks up.
 
PHaS3 said:
Interestingly, I have been having this issue with my 5700 (flashed to XT) for about 3 driver versions. Prior to that, the mem clock would idle down to 100MHz, but since that one driver, the memory stays pegged at 1760. I have a Dell UltraSharp U2719D, 1440p @ 60Hz. I initially thought perhaps it had something to do with the built in MST hub of the display (How to Daisy Chain Multiple Monitors Using DisplayPort Multi-Stream Transport (MST)), but even disabling this on the panel left me with 1760MHz at all times. I think there is a driver bug where if you have 1440p or more, the VRAM just clocks up.
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AFAIK is an issue with the monitors but NVIDIA has fixed this long ago. Only AMD has this problem now a days, which we must solved manually.
Try doing a custom resolution with Radeon Settings with CVT and it should your issue.
 
I'll give that a go, though I don't see where the issue is to be honest, standard resolution and standard 60Hz refresh, no second monitor connected anymore, MST disabled. I'll try a custom resolution with the software suggested, I know being a DP display I haven't had the most luck with custom resolutions or even monitor OC in the past.
 
I fixed this on my NVIDIA card by downclocking my 75hz monitor to 72hz so it's half of my main monitor's refresh rate (144hz).
 
Did anyone else notice a reference to the RX 5500 XT in the latest Radeon drivers?
I wonder why only the RX 5500 XT is mentioned? It certainly hasn't fixed the idle VRAM speed for me, anyway. Perhaps the next driver release will fix it?
vram.png

Fixed Issues​

  • Visual artifacts in PAYDAY™ 2 may be observed during gameplay on some AMD Graphics products such as Radeon™ RX 6800 XT.
  • Connecting two displays with large differences in resolution/refresh rates may cause flickering on Radeon RX Vega series graphics products.
  • On Radeon™ RX 5500 XT Graphics, higher than expected memory clock speed and power consumption may be experienced when idle and the display’s resolution and refresh rate are set to specific values such as 1080p @ 60Hz.
  • While playing Assassin’s Creed® Odyssey, driver timeouts or black screens may be experienced on some AMD Graphics products such as Radeon™ RX 480 Graphics when the user quickly navigates through the game menus or swiftly looks around an environment with their character.
Click to expand...
 
@Splinterdog I think it is not related, they specifically mention 60hz displays, so an official refresh-rate. 144 and 75 both are basically OC'd displays with reduced blanking.
the issue we are experiencing is not considered an issue but a byproduct of using such monitors. just increase the blanking time & reduce the hz for a desired effect. or use a lower build in refresh-rate/ create on in the driver.

I've tried myself to go further than 144hz, 145, for example with even less blanking. the issues get even weirder after that. for example you can apply a memory overclock which will look like it has applied however performance will be the same as stock. + memory stuck at max speed. & core voltage set to the "memory voltage" found in the driver.

as to why only the 5500xt, could be that only 1 or a few tickets were sent which only mentioned the 5500xt.
 
i fixed this by selling my 5700xt. Works 100%, tested by me
 
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