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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 188

post #1871 of 3298
*update*

Raised temp target 80 max temp 88 shutdown 80 hotspot

On 17.4.1 I can't open Fallout 4 at 5120x2880 with VSR enabled

Also I don't see the OSD in game anymore

Along with can only run the game at 4096x2160 however now it feels like 60fps?!?

This Opteron 1389/ Configuration seems to outperform my dual xeon for some odd reason... 60fps 4096x2160 is what it feels like... RTSS reported 63fps in HWInfo and it felt like as much which is straight nuts.

I wish AMD could build an AM3 compatible 16-core Opteron 1389X... These things are insanely powerful... forget all specs it's like doing better than my 24-thread x5650x2 with 48gb ram.
Edited by chris89 - 4/8/17 at 5:38am
post #1872 of 3298
Ok seems like learning to fiddle with my GPU's bios starts to be entertaining biggrin.gif
I have few noob questions for you guys:
  1. Why changing the P state voltages in the bios editor doesnt seems to work?
  2. It seems my bios doesnt have a VDCC offset ( RX470.zip 110k .zip file , no "8D" before the "FF 00 01 07" sequence) yet the voltage on usage doesnt seem to obey what I set in wattman or watttool. Could it be because I changed the offset in watttool and trixx before?
  3. I know how to add a VDDC offset in the bios but I dont know how to proceed to adjust the table length or whatever it is. How can I do it?

My goal is just to undervolt and keep the power limit.
post #1873 of 3298
@chris89Theres no way to get a legit signature because that's a Microsoft private key thing. If you want to get dxva you need to use dseo with test mode I listed- this is done after using the atikmdag patcher. Then the os can "see" the modded driver as "ok" and work with dxva.

So atikmdag patcher lets amd driver see that bios is ok.

Dseo lets the os/dxva etc see the driver as safe for dxva. I just did it because instead of 25% cpu use in chrome html5 YouTube 1080p60, it goes down to 10% (on my i5-2500k @ 4.6ghz) if you don't watch videos while gaming, it's not a big deal but it was affecting assetto corsa full grid races for me which hog cpu frown.gif
Edited by robnitro - 4/8/17 at 9:18am
post #1874 of 3298
@robnitro Actually I find dxva to work fine for MPC HC 4096x2160 decode. Though these new drivers aren't working with a lot of stuff. Like RTSS for instance Riva Tuner OSD isn't working at all? Along with 5120x2880 not working at all for Fallout 4 when it worked all fine on 16.9.2.

@Galder What are you looking to do? I recommend only overclocking via bios. Let me know. If you want me to I can mod your BIOS with whatever you feel like you want to change?

We found out the Sapphire cards among anything non-reference. Unless yours is a reference card?
They cannot do DeLimited. Too few VRM, Too much heat. We did figure about 160W max/tdc/limit.

This BIOS I feel could work as it did for other non-reference. It should do fine I believe. Test it. Post GPUz GPixel stats & HWInfo v546 GPU data at load. Try running it through Time Spy so I can see how it does. It doesn't black screen but if it does means VRM overheat too much TDP. We might try 140W or 133W until we find what is fine. DeLimited allows max performance but only on reference.

Galder_RX470_1320-1797-160w-limit-80-88-80.zip 112k .zip file
Edited by chris89 - 4/8/17 at 9:54am
post #1875 of 3298
Thread Starter 
Little rant time:

I really don't understand all this work around temps and tdc-tdp ecc ecc.... Polaris always try to use the max freq/voltage to stay under the max tdp and core temp. So... I just set the tdp to 180-200w(my 480 is not going to throttle because of tdp even using tw3 with 1350mhz1131mv(160-170w max)... I let the card play with the freq/voltage to remain under the max temp i set. I use 80°c. So my 480 stay at 80c all the time and change the power draw on the fly to remain under 80c. Why set the tdp to 140 or 130?(if the vrm overheat the problem is the poor contact with the cooler or low fan speed) In some situations the card will throttle because of the tdp even if the vrm and core temps are fine, wasted performance. If i set the max temp very low and the tdp very high the card will never touch the tdp limit to remain under the max temp... again wasted performance.
Set a tdp and temp you are fine with and let the card do the job.
post #1876 of 3298
Basically there is some "Science" behind it all. As throttling is not only VRM overheat or TDP limit but also any component on the PCB that overheats. There's a chip on the back end of the PCB that does get smoking hot. I noticed this since I removed the pad I had on it. You can see the pad had hardened a bit and cracked a bit. Not to mention I gazed over all components to see which one was darker in the center than on their edges. Those are the hot chips. So I removed all throttling this way.

Basically on a non reference card your likely to overheat and crash eventually past 160w max/tdc/limit. Also your likely to overheat and crash at anything but stock 65288, 65287, etc. Along with most likely to overheat and crash above 80C max temp, 88C shutdown, 80C hotspot.

What this means is between 65282 to 65287 should look like this for a "TRUE" undervolt : 65282 : 433 : 65283 : 533 : 65284 : 633 : 65285 : 733 : 65286 : 833 : 65287 : 933.

Then decide your max clock in 65288 spot. It will find the right voltage for your clock with 65288. The perfect voltage at all times for total stability.

65288 : 1250 (No Problem Perfectly Stable Almost Never Throttle Ever) or 65288 : 1320 (About the max for total continuous error free stability) or 65288 : Whatever because anything beyond 1320Mhz could result in eventual instability. Not because of 65288 is "Not Enough Voltage" but because ever higher clock set in position 65288 voltage range, calls on more (HOT) "Variable" 65288 voltage up to 1250mv. Only 1250mv will be used when above 1,400Mhz Core clock and real hot. It's possible though on reference for 1,407Mhz on 65288 just perfectly fine and extremely fast.

So for an ideal running card you wanna throw basically 47% more than stock fan rpm at it. Say it's 2000 stock, set it to 2000 x 1.47 = 2940rpm to really help out and keep everything cool. Anywhere between 2933 and 3667rpm is noise to performance ratio. Quiet and totally fine at 2933rpm but 3667rpm gives those big numbers on benchmarks.

So yeah I hope I answered or helped understand a bit. thumb.gif
Edited by chris89 - 4/8/17 at 11:58am
post #1877 of 3298
Quote:
Originally Posted by chris89 View Post

@Galder What are you looking to do? I recommend only overclocking via bios. Let me know. If you want me to I can mod your BIOS with whatever you feel like you want to change?

We found out the Sapphire cards among anything non-reference. Unless yours is a reference card?
They cannot do DeLimited. Too few VRM, Too much heat. We did figure about 160W max/tdc/limit.

This BIOS I feel could work as it did for other non-reference. It should do fine I believe. Test it. Post GPUz GPixel stats & HWInfo v546 GPU data at load. Try running it through Time Spy so I can see how it does. It doesn't black screen but if it does means VRM overheat too much TDP. We might try 140W or 133W until we find what is fine. DeLimited allows max performance but only on reference.

Galder_RX470_1320-1797-160w-limit-80-88-80.zip 112k .zip file

Thank you. I only want to apply a negative voltage offset in the bios I provided in the last post. Lets say -10 *6.25 mv. Most of the other settings I copied them from the bios you made for me before and I think they are working great for me (TDP etc). I dont need to OC the card since I am using it with a 1600*900 screen anyway thumb.gif
post #1878 of 3298
Right on glad it's working well for you. Turning down the voltage won't create stability since AMD was on top of it when they made their 6528* values. They are spot on, on every one. haha thumb.gif

Post a GPUz or a screenshot in game or something haha I'm interested.
post #1879 of 3298
Quote:
Originally Posted by chris89 View Post

Right on glad it's working well for you. Turning down the voltage won't create stability since AMD was on top of it when they made their 6528* values. They are spot on, on every one. haha thumb.gif

Post a GPUz or a screenshot in game or something haha I'm interested.

This is running Hitman, with a -15 voltage offset:
post #1880 of 3298
Hi Chris

sorry I have totally lost the plot since I shared my questions about my BIOS mod few months ago and this thread has become super active I have trouble tocatch up lol(.
just reminder powercolor red devil 8gb OC factory 1330Mhz core/8000Mhz memory here, a 3fan model

I have some more time now to run further testing with my card, wonder if you could help with

1)increase performance with memory timings adjustment, are the ones preset provided in the OP valid for my card?
2)better control, read lower where possible, my temps on severe Ocing without cranking up the 3 fans as per the attached curve profile

maybe I am trying to reinvent the wheel and cant achieve all above but if you could guide me, would be great

thanks so much

To give you where I am today with voltage, Wattage,temps, cooling etc

Undervolt set VDDC offset from stock -136mv
HWinfo 64 summary (while running Uningine Heaven)



Overclock set VDDC offset from stock +36mv
HWinfo 64 summary (while running Uningine Heaven)




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