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post #881 of 3387
So today I decided to get around to installing the waterblock on the RX-480 and do some overclocking. I was expecting more honestly, but I have hope some bios mods can unlock more potential.

Asus Rx-480 reference 8gb card. Bitspower RX-480 waterblock .

Current settings

Wattman 1.150mv 1380mhz core/ 2150 mhz memory
Powerlimit +50%


I was using Asus gpu tweak as well, which allows for much more voltage adjustment (1.300mv listed) I set to max voltage and competed some benchmarks at 1400+mhz but clock speed is all over the place indicating that I've hit the powerlimit rather hard.

I tried to use the bios tool to increase the power limits to 75%, and tdp limits to 225 watts, but still having the same issues.

What do I need to do to successfully increase the limits? +rep to anyone who can lead me down the path to higher stable clocks.
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post #882 of 3387
Not that card, one 8-pin is limit. That follow VRM section. It is already very high what you got.
post #883 of 3387
Quote:
Originally Posted by ebduncan View Post

So today I decided to get around to installing the waterblock on the RX-480 and do some overclocking. I was expecting more honestly, but I have hope some bios mods can unlock more potential.

Asus Rx-480 reference 8gb card. Bitspower RX-480 waterblock .

Current settings

Wattman 1.150mv 1380mhz core/ 2150 mhz memory
Powerlimit +50%


I was using Asus gpu tweak as well, which allows for much more voltage adjustment (1.300mv listed) I set to max voltage and competed some benchmarks at 1400+mhz but clock speed is all over the place indicating that I've hit the powerlimit rather hard.

I tried to use the bios tool to increase the power limits to 75%, and tdp limits to 225 watts, but still having the same issues.

What do I need to do to successfully increase the limits? +rep to anyone who can lead me down the path to higher stable clocks.

You need to flash unlocked bios.
post #884 of 3387
Quote:
Originally Posted by zdziseq View Post

You need to flash unlocked bios.

I have the unlocked bios

Quote:
Originally Posted by Mode77 View Post

Not that card, one 8-pin is limit. That follow VRM section. It is already very high what you got.

nah, you can go over spec on both the pci-e and the 6 pin.



I got the card working with 75% powertune. Apparently enabling extend overclocking limits in asus tweak caused it to only go to 50%. I disabled the extended limits, and now both Wattman and Asus Tweak both go to 75% powertune now.

interesting to note, Wattman will go up to 1.175mv, you can type in higher values but they don't stick. Just have to figure out a good way to control core voltage and I'm good to go. I can do 1400mhz core on 1175mv. Asus Tweak offers voltage control but things go weird when I use the ASUS GPU tweaker something about the powertune not getting applied properly.

I guess I am going to try good old msi afterburner.

I will get this RX480 figured out so it can clock to the moon like my old R9-290 (1325mhz/1675mhz)
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post #885 of 3387
Quote:
Originally Posted by zdziseq View Post

You need to flash unlocked bios.

No "unlocked" Bios is delivering more than 225W.

Try post #672 instead. Only a reg-key necessary, no flashing required, even with a 480 reference bios up to 390W possible, with an "unlocked" bios 532,5W. thumb.gif
http://www.overclock.net/t/1604567/polaris-bios-editing-rx480-rx470-rx460/670#post_25548934
Edited by hellm - 10/25/16 at 6:12am
post #886 of 3387
Quote:
Originally Posted by Echoa View Post

You had the red devil that wasn't AMD that did, you had literally the worst version of the card lol

I went with the worse company by buying the 390 to begin with. When the 390 started to go bad, I sent it in for RMA and got this junk mad.gif Great looking card, but has nothing under the hood.
post #887 of 3387
Quote:
Originally Posted by ebduncan View Post

I have the unlocked bios

this bios?

http://overclocking.guide/download/amd-radeon-rx-480-unlocked-air-bios/

because it's allow me to run above 1500Mhz easly @1.26v
post #888 of 3387
Quote:
Originally Posted by zdziseq View Post

this bios?

http://overclocking.guide/download/amd-radeon-rx-480-unlocked-air-bios/

because it's allow me to run above 1500Mhz easly @1.26v

Yes I am running that bios.

I also created my own for 75% powertune. I am just having issues between wattman and asus gpu tweak. If I set any values in gpu tweak, the amd wattman driver resets the powertune to 0. So i have to manually slide it back to 75% and apply. I'm currently at 1437mhz@ 1.3 volts, throttles a tad but stays in the 1420s+.

its quite annoying having to reset the powertune everytime in wattman. Setting powertune in asus gpu tweak doesn't do anything.
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post #889 of 3387
headphone.gif
The unlocked bios provides only 225W. I am german, but i think it's quite understandable. Besides, it's not unlocked, it has 150W PT instead of 110W (reference) or 115W (XFX Black Edition). Polaris Bios Editor, u still know that one? With 150W and +50% u have 225W, and this is for the GPU only.

Now, with 1.3V u might go over that. I have >205W with 1428MHz and 1.25V, with water cooling. U will need 250W or more, i have already told how up to +255% PT can be achieved with a simple reg-key.


Try and use WattTool. Everything u set there will be accepted by Wattman, but u will need to restart every time, or there will be strange performance loss.
http://www.overclock.net/t/1609782/watttool-a-simple-tool-that-combines-overclocking-with-vrm-monitoring-tweaking-for-rx-400-series
post #890 of 3387
Thanks I will try out watt tool.

I am just trying to find the max stable clock, back off a bit, then set those values into the bios and forget about the software tools.

Polaris seems to be a bit more tricky, than Hawaii ever was.
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