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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 195

post #1941 of 3354
Haha Do you need larger than nearly 4K? haha idk what your asking haha

With this cooling configuration the card is now achieving 85.41% efficiency at load... Check your HWInfo and take your Load Input divided by Load Output and get your percentage of loss. Then subtract that from 100 to get your at load efficiency.

By the way these new tech cards convert low voltage to high current. This is how they produce high powered performance on less input power. The card is reporting 133 watts input on the VRM, yet producing 250 watts of performance. So this is the highly efficient nature of Polaris.
Edited by chris89 - 4/11/17 at 9:50am
post #1942 of 3354
Quote:
Originally Posted by Loladinas View Post

Yeah, they are. Polaris 20.
I wonder if they changed the wiring so that core gets all of it's power from the power connectors and vram from the slot... That 6+8 setup is pretty pointless though. An 8pin can already deliver like 30 amps. You're going to fry something before you can use that much power. That second connector is going to do nothing, but make people think that the card is more power hungry than it is.

unless they wired the core to the 8pin and vram to the 6pin. But they wouldn't do that, would they now?


Actually it's more like letting the whole card pull more power. Higher clocks, higher overclocking.

My R9 290X can sometimes pull around 400 - 440 watts according to gpuz with PEG slot + 2x8. Only during benchmarks.. averages like 280 - 325 during games.
post #1943 of 3354
I tested a 280x recently trix vaporx and it had 2x 8pin but only had a 164w tdp. The dual 8-pin's with all 10-ground, and 8 positive wires has less voltage resistance so it remained above 12.00 volts under load.

By the way here is my 1422mhz GPGPU on PCIe 1.1... 1GB/s memory read and 3.1GB/s write haha (4GB max on PCIe 1.1). On Uber timings it increased from 191GB to 199GB at 2110mhz.

post #1944 of 3354
Quote:
Originally Posted by kithylin View Post

Actually it's more like letting the whole card pull more power. Higher clocks, higher overclocking.

My R9 290X can sometimes pull around 400 - 440 watts according to gpuz with PEG slot + 2x8. Only during benchmarks.. averages like 280 - 325 during games.
And that's where Hawai differs from Polaris. Even at 1.3 volts and 1500MHz I'm only peaking 250W. Even a single 8pin can supply that. 260W is the limit for my VRM. Regular gaming, at mild OC pulls like 150W.
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post #1945 of 3354
1454Mhz stock voltage... will post results... haha

post #1946 of 3354
Quote:
Originally Posted by Loladinas View Post

And that's where Hawai differs from Polaris. Even at 1.3 volts and 1500MHz I'm only peaking 250W. Even a single 8pin can supply that. 260W is the limit for my VRM. Regular gaming, at mild OC pulls like 150W.

Yeah.. I know, power is less on polaris but all of that and the actual performance isn't much better than my hawaii card. I do want less power usage for sure, but not for $300 to just get less power but only +7% more performance with it. Maybe RX 580 might change that, doubtful though. I'm more in the market and saving up my resources to try and go fullcover water for "big vega" soon hopefully.
post #1947 of 3354
Can you guys hit 1200fps on Julia? My 390x at 1250mhz could do 1100 or so. I'm only up 6.7 GFlops... You guys who are at 1500mhz should hit 7.5 GFlops maybe more?


Edited by chris89 - 4/11/17 at 1:13pm
post #1948 of 3354
Here's what my 290 gets at 1100/1400



Not sure why it says 1500 in the pic
post #1949 of 3354
This is what i have achieved after installing the Accelero Mono Plus just within 10 minutes of testing :

from 1360/2050 on stock voltage
to
1420/2050 +50mv on core.

Could not install the ram heatsinks as the card is not reference and does not fit with this cooling - the heatsinks needs to me lower.

Much better temps and mostly- ******* silence smile.gif

Testing continues.
post #1950 of 3354
Got any pictures of the glowing regulators under load? haha wink.gif
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