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The Polaris RX 480 Owners Thread.

What's the default clock on your 480?

I'd say 1360 with +20% power and 2100 for the RAM should be fine to begin with though. I would suggest setting a custom fan profile first in case it gets a bit hot.
 
Default is 1303. What about voltage?

I can monitor Temps and fans in afterburner. During benchmarks so far it reaches 72 degrees at 25%fan that's with 100% gpu use.

Does afterburner give less functionality that wattman? From what I've seen I can only set the maximum not the intermediate stages, but afterburner appears to have more custom fan curve options.

What software has precedence if they are all active out of afterburner watt man and the msi gaming app?
 
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Guys, trying to enter 1.25V in wattman and it won't accept the value. Anyone know?

Entering it as 1250 as per the format of the cell, and on pressing enter it reverts to 1143.


Edit - I'm trying to set a custom fan curve in afterburner and the temperature hysteresis option doesn't seem to work at all. Anyone know? Ive set it to 3 degrees so what I understand should happen is there should be a 3 degree deadband before fans are lowered when temperature is decreasing. What is actually happening is the fan is immediately adjusting as soon as my boundary is reached and the fans keep starting up and then stopping again.

I'm not overly happy with afterburner's voltage control because you enter a delta value (i.e +50mV) rather than being able to enter an absolute value of 1250mV. The max is +100mV, which assuming the base is 1143 only takes me to 1243 i.e not the 1.25V specified as a good setting to start with.
 
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danlightbulb said:
Guys, trying to enter 1.25V in wattman and it won't accept the value. Anyone know?

Entering it as 1250 as per the format of the cell, and on pressing enter it reverts to 1143.


Edit - I'm trying to set a custom fan curve in afterburner and the temperature hysteresis option doesn't seem to work at all. Anyone know? Ive set it to 3 degrees so what I understand should happen is there should be a 3 degree deadband before fans are lowered when temperature is decreasing. What is actually happening is the fan is immediately adjusting as soon as my boundary is reached and the fans keep starting up and then stopping again.

I'm not overly happy with afterburner's voltage control because you enter a delta value (i.e +50mV) rather than being able to enter an absolute value of 1250mV. The max is +100mV, which assuming the base is 1143 only takes me to 1243 i.e not the 1.25V specified as a good setting to start with.
Click to expand...

You can't use Wattman to set 1.25v. +100mv in afterburner is fine or you could use Trixx. I would forget about Wattman and use afterburner as you can do it all from there.

What i do with afterburner is set the fan to a 1 to 1 profile ie 41 oc is 41% fan. Once i get up to around 80oc i up the curve to 100%.
 
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TheRealDeal said:
You can't use Wattman to set 1.25v. +100mv in afterburner is fine or you could use Trixx. I would forget about Wattman and use afterburner as you can do it all from there.

What i do with afterburner is set the fan to a 1 to 1 profile ie 41 oc is 41% fan. Once i get up to around 80oc i up the curve to 100%.
Click to expand...

+100mV is the max adjustment though? Seems odd that I have to jump straight to the max adjustment.

Not sure if you've tried the MSI card but at 40% the fans are quite loud. They are not whiney but you can hear the wind noise substantially. It will however maintain 70 degrees C at 25% fan which is silent. I can't see this card ever needing more than 30% fan.

At the moment I have the fans off until 50 oC (it idles at 41 oC). At 50 oC they kick straight to 10% as they need that to start turning. Then they rise with temperature to 25% at 70oC, 50% at 80oC and finally 100% at 85 oC. I can't see it ever needing that though as I said. Its quite happy at 25% fan 70 oC during the 3dmark benchmarks I've been running.


Here is a table of fan speed % vs rpm for this card:

Fan speed %, fan rpm
10, 575 (inaudible over case fans in silent room)
20, 990 (inaudible over case fans in silent room)
40, 1545 (can hear it a bit over case fans, not over game sound)
60, 1975 (can hear it over game sound)
80, 2290 (can hear it a lot over game sound)
100, 2550 (as above)



Edit- I just tested the 1:1 fan curve you mentioned above.

At idle, after a few minutes the card settled at 26 oC, 26% fan (1170rpm) - it's just possible to hear this over and above the case fans in a silent room.
During the firestrike demo the card topped out at 58 oC, 58% fan (1920 rpm) - but I could hear it over the demo sound.

So I find that quite interesting.

In games: 58% fan to maintain 58 oC but I can hear it over the game, OR, 25% fan to maintain 70 oC and effective silence. Or do I go somewhere inbetween?
At idle: keep some fan to lower idle temps or let it sit at 41 oC idle with no fans on?
 
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danlightbulb said:
Snip...
Click to expand...

Are these temperatures with any overclock/increased voltage?

I was trying to choose between the sapphire nitro+ oc or the MSI gaming x and settled on the MSI due to it running cooler and quieter in the reviews I found. It should arrive today so I'll give some feedback later.

If you have managed to overclock I'd be interested in how you got on :)
 
I have 1350 core and 2100 ram with no voltage adjustment and doesn't appear to have affected temperature at all. Might settle with that.

However I did get a funny screen on loading windows yesterday. After restart it was fine. I'm confused how afterburner interacts with wattman since there doesn't seem to be a way to turn wattman off.
 
danlightbulb said:
+100mV is the max adjustment though? Seems odd that I have to jump straight to the max adjustment.

Not sure if you've tried the MSI card but at 40% the fans are quite loud. They are not whiney but you can hear the wind noise substantially. It will however maintain 70 degrees C at 25% fan which is silent. I can't see this card ever needing more than 30% fan.

At the moment I have the fans off until 50 oC (it idles at 41 oC). At 50 oC they kick straight to 10% as they need that to start turning. Then they rise with temperature to 25% at 70oC, 50% at 80oC and finally 100% at 85 oC. I can't see it ever needing that though as I said. Its quite happy at 25% fan 70 oC during the 3dmark benchmarks I've been running.


Here is a table of fan speed % vs rpm for this card:

Fan speed %, fan rpm
10, 575 (inaudible over case fans in silent room)
20, 990 (inaudible over case fans in silent room)
40, 1545 (can hear it a bit over case fans, not over game sound)
60, 1975 (can hear it over game sound)
80, 2290 (can hear it a lot over game sound)
100, 2550 (as above)



Edit- I just tested the 1:1 fan curve you mentioned above.

At idle, after a few minutes the card settled at 26 oC, 26% fan (1170rpm) - it's just possible to hear this over and above the case fans in a silent room.
During the firestrike demo the card topped out at 58 oC, 58% fan (1920 rpm) - but I could hear it over the demo sound.

So I find that quite interesting.

In games: 58% fan to maintain 58 oC but I can hear it over the game, OR, 25% fan to maintain 70 oC and effective silence. Or do I go somewhere inbetween?
At idle: keep some fan to lower idle temps or let it sit at 41 oC idle with no fans on?
Click to expand...

In afterburner with my 290 i can select +001mv to +100mv. Maybe it's a problem with the RX480 cards.

It looks like your card runs very cool with lower % fans so i would stick to what you have unless you suffer from throttling which would need a more aggressive fan curve. On big power hungry cards like mine a 1 to 1 profile works pretty well at keeping temps down.
 
Is anyone getting the odd flicker on & off while webbrowsing by any chance?

Every now & again the screen will go black for a millisecond & go back to normal for a while. Kinda like how it goes black when you are installing drivers.

I'm using DVI output, 16.9.2 drivers but it also did it on the last 2 sets of drivers also. Sapphire Nitro 480 OC+ 8gb card. Never got it with my 280x.

danlightbulb i've always had the intel gpu disabled.
 
Matteysan said:
Is anyone getting the odd flicker on & off while webbrowsing by any chance?

Every now & again the screen will go black for a millisecond & go back to normal for a while. Kinda like how it goes black when you are installing drivers.

I'm using DVI output, 16.9.2 drivers but it also did it on the last 2 sets of drivers also. Sapphire Nitro 480 OC+ 8gb card. Never got it with my 280x.

danlightbulb i've always had the intel gpu disabled.
Click to expand...

I was getting this before I got a gpu and I traced it to my ram xmp profile. Had to increase some board voltages. Have you adjusted your power limit?.
 
A couple of driver versions ago I could keep my Nitro RX480 at 1370/2150, now it's sticking at 1349 in Trixx if I set it any higher (latest drivers and the one before).

Mankind Divided in DX12 (rubbish by the way, always crashes, went back to DX11), crashed twice with a grey screen and that grinding sound. That's the only bad crash I've had at higher OCs, is this the driver/game or the card?
 
I'm curious on undervolting an RX480 to save power usage. What sort of things have people seen or done? I remember a recent youtube video of a watercooled RX480 with very low power usage, but of course that's terrible value for money, putting a ~£100 waterblock on a ~£220 GPU. I'm especially curious about undervolting stock AIB cards like the MSI Gaming 4G one. Of course, I can't do it myself right now, since the card itself is nicely wrapped up to be gifted in a couple weeks time, but I weant to know whether it's worth the effor and what the results are.
 
mahius said:
I'm curious on undervolting an RX480 to save power usage. What sort of things have people seen or done? I remember a recent youtube video of a watercooled RX480 with very low power usage, but of course that's terrible value for money, putting a ~£100 waterblock on a ~£220 GPU. I'm especially curious about undervolting stock AIB cards like the MSI Gaming 4G one. Of course, I can't do it myself right now, since the card itself is nicely wrapped up to be gifted in a couple weeks time, but I weant to know whether it's worth the effor and what the results are.
Click to expand...

Default voltage of my RX 480 was 1.137v. I have been able to undervolt the core to 1.075v and it's fully stable with perhaps, a little more room to go a bit lower. The memory default voltage is 1.0v, i have been able to undervolt this to -0.85v fully stable with perhaps, a little more room to go a bit lower. This has reduced power consumption, fan speed and heat.
 
AMDMatt said:
Default voltage of my RX 480 was 1.137v. I have been able to undervolt the core to 1.075v and it's fully stable with perhaps, a little more room to go a bit lower. The memory default voltage is 1.0v, i have been able to undervolt this to -0.85v fully stable with perhaps, a little more room to go a bit lower. This has reduced power consumption, fan speed and heat.
Click to expand...

Exactly the variance in the quality of yield demonstrates how each gpu responds to voltage. My rx470 before I popped a Mosfet at 1.25v, was able to run stock clocks 1206mhz at 1.03v with 25% power instead of a throttling 1050mhz at 1.15v. Power consumption dropped nicely.

Just to be clear it's the memory controller that you have voltage control over not the memory chips which are 1.5v regulated.
 
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