Comments (12)
4G Decoding on and CSM off ? GPU-Z reports these incorrectly only way to check is going to BIOS
UEFIPatch applied ?
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CSM is disabled but 4g Decoding i cant find.
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Gigabyte Z97 boards don't have the 4G decoding option even in hidden settings. I'm sure it can be patched to enable it tho.
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Hmmm is there any way i can do it or is it risky.. or myb to stay at 1024?
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@LordAdo96 patch to fix it doesn't exist yet. I had a 12% FPS gain in Cyberpunk 2077 with 2GB BAR size on RX 580 8GB I'm sure 1GB gives an increase too.
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Yeah you right.. i think i got as far as i can go.. i mean im new in this whole thing. Thank you very much!
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Download UEFIPatch and UEFITools and put them in a folder together.
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Download your bios from Gigabyte's website.
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Open up the bios zip and extract the Z97XG7.F8(In this example), and put in the same folder as UEFITool and UEFIPatch
Use these 2 patches from the patches.txt (Create a patches.txt text file in the same directory and add the patches. Make sure they don't have space in the end of the code part before you save it.)
PciHostBridge | Replace 8-16GB MMIO region with complete use of 64GB address space (Haswell). MAY REQUIRE DSDT MODIFICATION
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
PciBus | Remove <16GB BAR size limit (Ivy Bridge/Haswell)
3C1DE39F-D207-408A-AACC-731CFB7F1DD7 10 P:B8FFFFFFFF030000004C3B:B8FFFFFFFFFFFFFF004C3B
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open up Command Prompt with Admin privilege(right click, run as administrator), you can use the taskbar search bar to find it.
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write "cd [UEFIpatch directory]"
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run UEFI patch by running this command
uefipatch.exe Z97XG7.F8 Gigabyte.txt -o Z97XG7Patched.F8
This will generate a patched bios named "Z97XG7Patched.F8" -
insert rebardxe.ffs using UEFITool
done
Edit: Forgot to add that "Don't downgrade 64-bit BARs to 32-bit" didn't work on your bios when I tried it on my end, so I excluded it from the patches.
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Hmm.. i try it but i only managed get 1024mb if i go 2gb or more just black screen
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You may need to patch your DSDT. Unfortunately, I have no knowledge in the matter as of yet.
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aa ok. thank you for help mate..
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Hmm.. i try it but i only managed get 1024mb if i go 2gb or more just black screen
you need 4g decode for sizes larger than 1gb to work. but you still do get an fps increase even with 1gb
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Duplicate of #14
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