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AMD/ATI Pixel Clock Patcher
08-03-2018, 04:59 AM (This post was last modified: 08-03-2018 05:02 AM by kimboslicer99.)
Post: #891
RE: AMD/ATI Pixel Clock Patcher
R9 290 Win10 64 bios signature check patch does not appear to work. black screen after login on second bios, first bios works fine

Edit: on 18.7.1
Also tried DDU to uninstall and reinstall
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08-04-2018, 12:39 PM
Post: #892
RE: AMD/ATI Pixel Clock Patcher
(08-03-2018 04:59 AM)kimboslicer99 Wrote:  R9 290 Win10 64 bios signature check patch does not appear to work. black screen after login on second bios, first bios works fine
The BIOS signature check is for Polaris GPUs. It has nothing to do with the R9 290.
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08-06-2018, 05:17 PM
Post: #893
RE: AMD/ATI Pixel Clock Patcher
I have a Rx 480 with a notebook vBIOS in my laptop while AMD does not seem to distinguish between the desktop and the notebook version, I tried using the atikmdag-patcher-1.4.6 to patch my Rx 480 with a modded vBIOS to unlock TDP from 75W to 110W with some other minor changes but the BIOS signature check patch does not seem to work, my operating system is Windows 7 Pro SP1 x64, not sure what I am doing wrong I uninstall the driver with DDU, restart, install the driver then patch with atikmdag and then restart yet I still get Error 43 in the system from signature check failing to verify.
Everything works fine with standard vBIOS's its only the modded ones.

So far I have tried the following drivers, ReLive 17.11.4, Adrenaline 18.2.1, 18.5.1 and 18.7.1, none of them worked the only on that did work was that 2 year old Crimson driver before they added the BIOS checker.
Any advise? I tried flashing the desktop reference vBIOS too without luck still same error, running the tool with administration rights, even tried turning off driver verification in W7 to no avail.
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