The RX Vega 64 Owners Thread

[pieman109]

In your gpu-z screenshot you were running on balanced watt profile, as hbm only at 800mhz, in this mode you aten't hitting your p6-p7 states hence the low clocks and only 1.006vddc.

But if he adjusted the P6 & P7 state voltages, and upped the p7 frequency, surely wattman would have automatically set "custom" not balanced?

 

[Davedree]

But if he adjusted the P6 & P7 state voltages, and upped the p7 frequency, surely wattman would have automatically set "custom" not balanced?

Probably right there, i must admit i don't ever use wattman . But i do remember the balanced profile causing hbm to stick at 800 way back on early drivers. I think either the new drivers aren't putting his gcard in the right voltage setting, and the hbm as it's clocked so low is causing the gpu to hit p4-p5, as it uses the p3 voltage for switching.

 

[InVitriol]

Spoiler

Upped to 1150
Yeah watttman says 945mhz, and watching gpuz its constantly switching 800/945mhz.
Wattman showed a gpu high of 1439mhz in that run temp 75c and 1814rpm.
The fan noise i was getting wasn't representative of the fan noise though!
Stupid question, but does wattman control all the fans, similar to msi afterburner? I stopped using afterburner as i heard it doesn't play well with wattman now.

Having a look at those figures, you're only getting a GPU power draw of 221w whereas with my Nitro versh at the same settings, I'm getting nearer 40-50w more power draw, but consistently higher clocks, around 1550mhz ish.
Heres what you can try to out. Give the P6 and & states 1150mv, that "should" allow the card to clock a bit higher, hopefully up to about 1470-1500 range I'd have thought.
Also why is your memory clock so low at 800mhz, I'd have thought it should be 945mhz?

 

[Ziggystarduft]

Select Balanced -> Apply -> Select Custom
Go to different states power and set P7 to 1100, P6 to 1090 and run some tests.

Thanks for trying to help Panos, I took your suggestions but no luck, I'd maybe get 10 to 15 seconds before it locks up and windows resets he driver. Increasing the power limit during the tests didn't provide any additional stability.

 

[Panos]

Thanks for trying to help Panos, I took your suggestions but no luck, I'd maybe get 10 to 15 seconds before it locks up and windows resets he driver. Increasing the power limit during the tests didn't provide any additional stability.

You have the nitro yes? Could you post your gpuz image please. Whats your PSU?

 

[beerglass007]

Hi all

I purchased a Asus Strix card the other day and just seen this thread about under voltage using wattman

I also see people don't like the Strix card because of the heatsink issues, is that a real problem ?

Can someone point me in the right direction to under volt the card, I'm even more confused after reading some of these pages and watching youtube videos

Is there an easy idiot guide please

Many Thanks

 

[LtMatt]

Picked up a brand new Vega 64 Liquid Edition for £500 which included import charges.

I'm still in the process of testing it, but it appears to be the best overclocking Vega 64 i have tested yet, at least as far as the HBM goes. 1175Mhz appears to be stable with P7 @1100mv and HBM at 950mv.

Kaap, picture for the roll of honour.

 

[Chrisc]

Hi all

I purchased a Asus Strix card the other day and just seen this thread about under voltage using wattman

I also see people don't like the Strix card because of the heatsink issues, is that a real problem ?

Can someone point me in the right direction to under volt the card, I'm even more confused after reading some of these pages and watching youtube videos

Is there an easy idiot guide please

Many Thanks

I also bought my 2nd vega last week, this time the Strix version. It now comes with the Heatsink to remove the issue. ill post my undervolt screenshot later for you to copy.

 

[Panos]

Hi all

I purchased a Asus Strix card the other day and just seen this thread about under voltage using wattman

I also see people don't like the Strix card because of the heatsink issues, is that a real problem ?

Can someone point me in the right direction to under volt the card, I'm even more confused after reading some of these pages and watching youtube videos

Is there an easy idiot guide please

Many Thanks

Please see 2-3 pages back for settings.

 

[pieman109]

I think people should let others know exactly what brand of Vega 64 they've got. I've noticed that one chap has a gigabyte versh that when using gpu-z 2.16.0, doesn't show the "gpu hotspot" which can go as high as 95c (maybe this is impacting performance/stability?) The sapphire nitro+ on the other hand shows this in gpu-z 2.16.0.
I've found on my sapphire nitro+ that I can hit 1630mhz stable with 1150mv on both p6 and p7 and set the p7 frequency to 1697mhz, it'll pull around 280w of juice. Taking it down to 1100mv on p6 and p7 and downclocking the p7 frequency to 1603mhz gives me a reliable gpu speed of 1530mhz (slower speed but less power draw so its a compromise and the in game performance hit is negligible).
I think whats happening here is the different vega 64 brands are reacting differently to each other for any given wattman setting.

 

[pieman109]

Please see 2-3 pages back for settings.

What Panos said. You need to find "baseline" settings to work from. Run it at stock using the rottr Dox demo which gives in game conditions and then try reducing p6 and p7 voltages as per the posts in this thread, say, 1150mv as start point (baseline)

 

[beerglass007]

I also bought my 2nd vega last week, this time the Strix version. It now comes with the Heatsink to remove the issue. ill post my undervolt screenshot later for you to copy.

Where is the heat sink. Is it on the rear of the card

 

[beerglass007]

What Panos said. You need to find "baseline" settings to work from. Run it at stock using the rottr Dox demo which gives in game conditions and then try reducing p6 and p7 voltages as per the posts in this thread, say, 1150mv as start point (baseline)

Thanks. I will do some more reading....

 

[Ziggystarduft]

You have the nitro yes? Could you post your gpuz image please. Whats your PSU?

It's deffinately the nitro+ non le, PSU is a 750w cougar gold rated 80+ PSU from ocuk and I'm using 2 separate 8pins rather than one cable daisy chained. I can post the gpuz but it won't be until gone 9pm when I get in from work.

 

[Vanilla]

Go into the radeon crimson driver, go to games, then to the global settings, you will be presented by the screen posted 9 posts up from this.
Copy the settings in that, but in the bottom box that reads 1100 for voltage control change it to 1000 and put the power limit from 10% to 50%

Thanks for the help with undervolting. I followed everything to the letter and applied the settings. However it seems undervolting has had either zero effect or caused me to lose a little. I was expecting a little bump at least?

Any input in where to start looking? or screenshots of other things?

Pre-undervolt

Heaven = 3136 STOCK Vega plus OCLOCK CPU

UserBenchmarks: Game 111%, Desk 91%, Work 63%
CPU: Intel Core i5-6600K - 91.8%
GPU: AMD RX Vega 64 - 132.1%
SSD: Samsung PM961 NVMe PCIe M.2 128GB - 170.6%
SSD: Toshiba THNSNJ512GCSU 512GB - 103.1%
SSD: Fusion-io ioDrive2 1.205TB - 160%
HDD: Seagate Barracuda 4TB (2017) - 79.1%
HDD: Hitachi HUA721010KLA330 1TB - 38.3%
RAM: Corsair Vengeance LPX DDR4 3200 C16 2x8GB - 95.1%
MBD: Asus Z170-A


Post-undervolt

Heaven = 3203 undervolted Vega plus OCLOCK CPU

UserBenchmarks: Game 110%, Desk 89%, Work 59%
CPU: Intel Core i5-6600K - 89.6%
GPU: AMD RX Vega 64 - 129.7%
SSD: Samsung PM961 NVMe PCIe M.2 128GB - 170.7%
SSD: Toshiba THNSNJ512GCSU 512GB - 102.7%
SSD: Fusion-io ioDrive2 1.205TB - 149.9%
HDD: Seagate Barracuda 4TB (2017) - 71.4%
HDD: Hitachi HUA721010KLA330 1TB - 37.6%
RAM: Corsair Vengeance LPX DDR4 3200 C16 2x8GB - 91.2%
MBD: Asus Z170-A

 

[Bloot]

 

[pieman109]

Thanks for the help with undervolting. I followed everything to the letter and applied the settings. However it seems undervolting has had either zero effect or caused me to lose a little. I was expecting a little bump at least?

Any input in where to start looking? or screenshots of other things?

Pre-undervolt

Heaven = 3136 STOCK Vega plus OCLOCK CPU

UserBenchmarks: Game 111%, Desk 91%, Work 63%
CPU: Intel Core i5-6600K - 91.8%
GPU: AMD RX Vega 64 - 132.1%
SSD: Samsung PM961 NVMe PCIe M.2 128GB - 170.6%
SSD: Toshiba THNSNJ512GCSU 512GB - 103.1%
SSD: Fusion-io ioDrive2 1.205TB - 160%
HDD: Seagate Barracuda 4TB (2017) - 79.1%
HDD: Hitachi HUA721010KLA330 1TB - 38.3%
RAM: Corsair Vengeance LPX DDR4 3200 C16 2x8GB - 95.1%
MBD: Asus Z170-A


Post-undervolt

Heaven = 3203 undervolted Vega plus OCLOCK CPU

UserBenchmarks: Game 110%, Desk 89%, Work 59%
CPU: Intel Core i5-6600K - 89.6%
GPU: AMD RX Vega 64 - 129.7%
SSD: Samsung PM961 NVMe PCIe M.2 128GB - 170.7%
SSD: Toshiba THNSNJ512GCSU 512GB - 102.7%
SSD: Fusion-io ioDrive2 1.205TB - 149.9%
HDD: Seagate Barracuda 4TB (2017) - 71.4%
HDD: Hitachi HUA721010KLA330 1TB - 37.6%
RAM: Corsair Vengeance LPX DDR4 3200 C16 2x8GB - 91.2%
MBD: Asus Z170-A

What is your P7 frequency set too? if you haven't touched it, set it to 1607mhz. I'd also advise setting both p6 & p7 states to 1100mv for the time being. That should give a gpu speed of around 1540mhz. Check using gpu-z. Also, what brand is your Vega 64? I reckon it does make a difference say, a gigabyte versh will react differently than a sapphire nitro 64 with the same settings in wattman (though this speculation on my part). Make sure you move the power slider fully to the right and leave the memory alone for the time being, that can be adjusted later.

 

[Vanilla]

What is your P7 frequency set too? if you haven't touched it, set it to 1607mhz. I'd also advise setting both p6 & p7 states to 1100mv for the time being. That should give a gpu speed of around 1540mhz. Check using gpu-z. Also, what brand is your Vega 64? I reckon it does make a difference say, a gigabyte versh will react differently than a sapphire nitro 64 with the same settings in wattman (though this speculation on my part). Make sure you move the power slider fully to the right and leave the memory alone for the time being, that can be adjusted later.

It's a Sapphire Nitro+

I think I did the right settings but again seems to have no effect. Maybe CPU is holding me back?





UserBenchmarks: Game 109%, Desk 89%, Work 60%
CPU: Intel Core i5-6600K - 87.2%
GPU: AMD RX Vega 64 - 131.1%
SSD: Samsung PM961 NVMe PCIe M.2 128GB - 168.6%
SSD: Toshiba THNSNJ512GCSU 512GB - 101.5%
SSD: Fusion-io ioDrive2 1.205TB - 157.9%
HDD: Seagate Barracuda 4TB (2017) - 68.6%
HDD: Hitachi HUA721010KLA330 1TB - 37.6%
RAM: Corsair Vengeance LPX DDR4 3200 C16 2x8GB - 93.6%
MBD: Asus Z170-A

 

[Chrisc]

Where is the heat sink. Is it on the rear of the card

As you look at the card (on the side where it says Rep of gamers) just above where the heatpipes come out in the middle, there is a small heatsink, its fairly visible.

 

[Chrisc]

It's deffinately the nitro+ non le, PSU is a 750w cougar gold rated 80+ PSU from ocuk and I'm using 2 separate 8pins rather than one cable daisy chained. I can post the gpuz but it won't be until gone 9pm when I get in from work.

Hey Ziggy, I have a spare Vega 64 you can borrow to test, which I know it undervolts just fine. You can borrow that to make sure its not another part of your system?