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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 125

post #1241 of 3451
I tried flashing my XFX RX-470 Triple X Single fan card to a bios with tweaked mem timings. I used the Polarios Bios Editing tool to make the changes. Tried timings used at 1500mhz copied it all up to 2000mhz, card has no display. Tried the timings used at 1600mhz no luck. 1750mhz, nada. Am I doing something wrong? Or Im just the unluckiest RX-470 owner in the world? I'm 99% is not the way I flashed the card. I used the latest ed of AtiFlash btw, flashed it inside windows. Cause everytime I flashed to the stock rom and the card boots up fine.
post #1242 of 3451
Quote:
Originally Posted by schubaltz View Post

I tried flashing my XFX RX-470 Triple X Single fan card to a bios with tweaked mem timings. I used the Polarios Bios Editing tool to make the changes. Tried timings used at 1500mhz copied it all up to 2000mhz, card has no display. Tried the timings used at 1600mhz no luck. 1750mhz, nada. Am I doing something wrong? Or Im just the unluckiest RX-470 owner in the world? I'm 99% is not the way I flashed the card. I used the latest ed of AtiFlash btw, flashed it inside windows. Cause everytime I flashed to the stock rom and the card boots up fine.

Are you cloning the timings from your own bios or from the OP? If you are using your own, did you patch your driver to allow unsigned bios to run? Cause it'll cause all sorts of funky if you don't.

But if all the above is right, you may just not be able to use pure 1750 timings. Best thing to do, is clone your 1750 timings to the upper frequency, and set your memory speed in the bios to 1750, meaning the card can def use that frequency / timings as it is designed to do so. From there, via software, play with memory speeds. Unless you know 100% that you can work with 1750 @ 2000mhz, it's always recommended to put the timings you are using as your stock speed, and overclock via software. Once you find your limit, then flash it in bios.


Edit: Just noticed it's a 470, and the model you have has 7000mhz ram, so you'd see it as 1750 (any mod you do on memory is x4 to give the real value), so keep that in mind. I'm pretty sure the bios editor was built primarily with the 480 in mind, and just happens to work with the 470, and 460. I don't have one to tell you for sure how it is displayed unfortunately.
Edited by jeb101 - 2/3/17 at 11:01am
post #1243 of 3451
Quote:
Originally Posted by jeb101 View Post

Are you cloning the timings from your own bios or from the OP? If you are using your own, did you patch your driver to allow unsigned bios to run? Cause it'll cause all sorts of funky if you don't.

I'm using the timing set from my stock bios. I didn't install any driver yet, just wanted it to boot to windows before I'll do the driver tweak. Sadly I didn't get any display. Just black screen and I've tried the timing from the 1500mhz' up to the 1750mhz timing.


But if all the above is right, you may just not be able to use pure 1750 timings. Best thing to do, is clone your 1750 timings to the upper frequency, and set your memory speed in the bios to 1750, meaning the card can def use that frequency / timings as it is designed to do so. From there, via software, play with memory speeds. Unless you know 100% that you can work with 1750 @ 2000mhz, it's always recommended to put the timings you are using as your stock speed, and overclock via software. Once you find your limit, then flash it in bios.

Wait if I got what you meant, my card is already running at 1750mhz stock. As a last resort, I copied the timing on the 1750mhz to the 2000mhz. I didn't get any boot. As if the card won't accept the modded bios regardless of what timing once it detects there were changes made.
post #1244 of 3451
I downloaded a bios from techpowerup for the 470, I see 2000 timings but wouldn't mess with them. Try cloning your 1625 timings to 1750 (make a backup of your stock timings), and set your memory mhz at 1625. Then overclock the memory. Not sure if the 2000 mhz timings are legit, or placeholder though, as these start with BBB, and all the ones I've seen started between 7-9, somebody with actual knowledge of the 470 bios could probably answer that for you. But I'd recommend simply keeping 2000 stock for now. If you boot, see if you can run it at 1750 with 1625 timings, see if you get improvements.
post #1245 of 3451
Quote:
Originally Posted by jeb101 View Post

I downloaded a bios from techpowerup for the 470, I see 2000 timings but wouldn't mess with them. Try cloning your 1625 timings to 1750 (make a backup of your stock timings), and set your memory mhz at 1625. Then overclock the memory. Not sure if the 2000 mhz timings are legit, or placeholder though, as these start with BBB, and all the ones I've seen started between 7-9, somebody with actual knowledge of the 470 bios could probably answer that for you. But I'd recommend simply keeping 2000 stock for now. If you boot, see if you can run it at 1750 with 1625 timings, see if you get improvements.

I'll give that a try after I get some sleep. I'm just disappointed how it turns out. Spent almost 4 hours doing trial and error end up the same as it was 4 hours ago. I might have missed one important detail cause everywhere I read they successfully flashed theirs with ease on first try. Hope your suggestion works.
post #1246 of 3451
So I've been having this idea last night that my gpu's bios can't be modified at all or somewhat the card doesn't allow it so here's what I did to somewhat prove it. Via Polaris Bios Editor, I downclocked the memory frequency to 1625mhz from 1750mhz. That's just it. Save the bios then flash the card and as expected, no display. Reverted back to the original bios, and the card boots up fine. Anyone encountered this? Here's how I usually do the flash.



Did I miss something?

EDIT: Since my gpu has dual bios, I tried it on both and the results are still the same. Card doesn't display when I tried flashing it with a modded bios even to as simple as underclocking the mem frequency. Reverted back to orig/untouched bios and the card works fine.
Edited by schubaltz - 2/3/17 at 10:03pm
post #1247 of 3451
BBB is a valid timing, or at least doesnt cause any issues I have replaced the 777 in my 2000 mhx clock with 999 and bbb for testing, and both do reduce performance, with bbb even causing some minor artifacting.
post #1248 of 3451
Quote:
Originally Posted by schubaltz View Post

So I've been having this idea last night that my gpu's bios can't be modified at all or somewhat the card doesn't allow it so here's what I did to somewhat prove it. Via Polaris Bios Editor, I downclocked the memory frequency to 1625mhz from 1750mhz. That's just it. Save the bios then flash the card and as expected, no display. Reverted back to the original bios, and the card boots up fine. Anyone encountered this? Here's how I usually do the flash.



Did I miss something?

EDIT: Since my gpu has dual bios, I tried it on both and the results are still the same. Card doesn't display when I tried flashing it with a modded bios even to as simple as underclocking the mem frequency. Reverted back to orig/untouched bios and the card works fine.
Did you remember to patch the driver to allow modded BIOS?

Something a bit odd happened to me as well, albeit in a good way. Did a clean install of Windows, latest drivers (driver only, none of the bloat), downloaded WattTool. Allows me to set voltage all the way to 1,325V (didn't try any higher), and I didn't need to edit registry or anything. Patched BIOS and everything just works like a charm. Also I'm getting 2-3FPS in Valley at stock. Probably something to do with updated Windows. I had been running the launch version, installed Anniversary now.
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post #1249 of 3451
Hello, I'm new here. I recently got a Sapphire Nitro 4GB and there's a couple of things I want to understand.

Why the hell is minimum gpu voltage locked to memory voltage? Is this a software problem or hardware problem?
As I'm concerned about power consumption, I capped memory voltage to 800mv and I got 2000mhz@1750mhz timings which is actually pretty good, but I wish I could go higher without modifyng gpu voltage, will it ever be possible?

Second. I hate that we have to patch drivers to make bioses work, is there no way around? I had no problems with my old r9 380...may it be caused from CCC or wattman? I could just uninstall them eventually.

Last thing, is it true that less voltage/heat actually gives performance gains?

I managed to reach 1400mhz@1200v and 1300mhz@1050v (added the 0.25 offset)

Which option should I go for?
post #1250 of 3451
Hi! First post here.

I have an MSI RX 480 8GB that I want to flash the voltage unlocked BIOS on, but that BIOS says ASUS and when I tried to flash it, it worked (without patching or anything), but the memory would hard crash at over 2100MHz. Reverted to the stock BIOS and the chips do 2250 no problem. Will patching the driver after flashing BIOS stop that and allow me to go up to 2250 again?
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