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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 10

post #91 of 3451
So i can confirm this issue has to do with some sort of driver side checking of the rom, and it throws that error code if its seeing something it does not expect. This issue does NOT appear with linux drivers...driver loads card fine and updated bios values work!

Few things to check on windows side is to make sure you have reset your wattman/afterburner presets to stock, as this could be conflicted with the changed roms. Only other thing I can think of is there is some sort of checksum mismatch with the windows drivers thats causing this.
post #92 of 3451
device error info gave me checksum mismatch in the windows driver install/setting.

I flashed to unmodded xfx 8GB xxx version and all is well. For now i will continue to use wattman to adjust voltages and fan curve.
post #93 of 3451
xfx1328mhz.zip 110k .zip file

I'm not sure what I'm doing with the bios editor. Will someone take a look at that and let me know if it's possible to change the max voltage to 1.2/1.25, up the ram limit/max voltage slightly, and change/tighten the timings for the ram? I'm really apprehensive to do it myself so any help would be much appreciated.
post #94 of 3451
I went over the checksums....that does not seem to be the issue...stilts BIOSes and the stock vs modified all produce the right checksum value. So not sure whats going on other than the driver literally checking BIOS values during boot, and anything thats not in range it throws an error.

That would explain why Stilt's BIOSes work, since hes changing an unusual parameter that is probably not checked by the driver...I hope im wrong, otherwise BIOS modding might not even be possible with 400 series cards.
Edited by jstefanop - 7/5/16 at 10:55pm
post #95 of 3451
My card crasht too... 128KB Bios dont run for me. Whit a secound Card i get Win10 up and flash a 512kb Bios whit 8GB





this Bios work fin whit my Card

RX480GB8.zip 109k .zip file
post #96 of 3451
Quote:
Originally Posted by Ginmarr View Post

My card crasht too... 128KB Bios dont run for me. Whit a secound Card i get Win10 up and flash a 512kb Bios whit 8GB

Warning: Spoiler! (Click to show)


this Bios work fin whit my Card

RX480GB8.zip 109k .zip file
Yeah, I just learn about this (BIOS size) at The Stilt's thread. Can you can edit your BIOS using polaris BIOS editor & don't have driver error?
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post #97 of 3451
If you brick your bios, but can boot... start windows in safe mode, device manager, and uninstall the driver. Restart into normal boot and flash with atiwinflash. Note atiwinflash does not work in safemode. This worked for me many times, but of course might not cover all circumstances.
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post #98 of 3451
Thread Starter 
Just put an old pcie vga in the first pcie slot and use atiwinflash to unbrick the secondary card.

...For the problem with driver/modded bios...i've noticed that the checksum change after a bios edit..drivers don't recognize the bios and the card is not working correctly...i don't know if the checksum is a possible problem
Edited by generaleramon - 7/6/16 at 1:58am
post #99 of 3451
Quote:
Originally Posted by generaleramon View Post

Just put an old pcie vga in the first pcie slot and use atiwinflash to unbrick the secondary card.

...For the problem with driver/modded bios...i've noticed that the checksum change after a bios edit..drivers don't recognize the bios and the card is not working correctly...i don't know if the checksum is a possible problem
Has anyone with the same problem tried uninstalling the driver and reinstalling to see if that changes anything. I didn't bother trying that yet I just reflashed the original bios each time. rolleyes.gif
post #100 of 3451
Thread Starter 
i've tested the flashtool at 1am... biggrin.gif ... i wasn't really in the mood to reinstall drivers
i'm really curious to test "stilt bios" and se if it works... maybe he know whats going on
Edited by generaleramon - 7/6/16 at 2:22am
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