sure, but would be easy to find out with a stock image.RBU thought.
move to HxD
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Greetings. I recently went through the modding process and added ReBarDxe.ffs to my MZ31-AR0 Rev1.1 board's R40 biosSuccess, now my a380 works well with the latest driver on mz32-ar0.
List of working motherboards · Issue #11 · xCuri0/ReBarUEFI
Motherboards which don't support at least 2GB BAR size are considered not working. If you're having any issues please see Common issues (and fixes) before replying. Use this format in your comment:...github.com
- Find 16M.RBU, open in HxD, strip off checksum footer (last 16 bytes starting at offset 0x10000000), save as 16M-ReBar.ROM
- Open 16M-ReBar.ROM in UEFITool, search for Guid 3C1DE39F-D207-408A-AACC-731CFB7F1DD7, scroll down to bottom of section, Insert After, choose ReBarDxe.ffs, Save 16M-ReBar.ROM
- Open 16M-ReBar.ROM in HxD again, Analysis -> Checksums -> Checksum-16, re-add Checksum Footer from original RBU (or manually enter, such that starting values are #GBT#ROM), replacing bytes 08 and 09 with the value calculated by Analysis-Checksums-Checksum16. Save as 16M-ReBar.RBU
- Open BMC web interface, login as admin. Power Down system. Navigate to Maintenance -> Firmware Update. Choose 16M-ReBar.RBU, Start. Select BIOS in dropdown, then Proceed. Successful flash. BMC closes. Wait a few minutes. Log back in to BMC. Power -> Power On.
- <Del> to enter Bios. Everything looks good. But here's my question...
Thanks in advance.
this doesn't add a BIOS option. you have to run an executable ReBarState to configure your GPU.
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You sir, are a genius. That, or you're simply better at RTFM than I am. I read through all of that, but have bounced around quite a bit between updating my BMC, using a Rev 2 bios ROM on a Rev 1.1 motherboard, hacking said BIOS, fighting over and over again with Intel Arc graphics drivers on both Windows and Linux machines. A lot of juggling in the late hours and I just needed to find that tiny one-liner in the docs about ReBarState.
You have my appreciation.
How can I flash this ?Dropbox
www.dropbox.com
Afuefi is giving error. its says secure flash rom failed.
if i have time i make rebar BIOS with last version.
edit:
i use this:
GitHub - xCuri0/ReBarUEFI: Resizable BAR for (almost) any UEFI system
Resizable BAR for (almost) any UEFI system. Contribute to xCuri0/ReBarUEFI development by creating an account on GitHub.
github.com
finaly repair/add RBU footer (16byte at the end of file)
Here is a modified bios (RBU) for Gigabyte MZ32-AR0 rev.3 (M31_R47)
Tested. After flashing don't forget set bar size by ReBarState.
MZ32-AR0 rev.3 (M31_R47)
Tested. After flashing don't forget set bar size by ReBarState.
MZ32-AR0 rev.3 (M31_R47)
How can I flash it? I want reBar for p2p through 4x 4090s with this motherboard
EDIT: Flashed BIOS correctly
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BMC version ? what error ?
only with BMCWebGUI, if not accepted (new BMC policy) no way.
My complete bad, I selected to flash BMC instead of BIOS and it returned an error.... its flashed correctly now altough I dont know if I have to do anything else like flashing new vbios on the 4090s, my OS is Debian
you need to run ReBarState app to enable ReBar.
BIOS
Disable CSM
Enable Above 4G Decoding
afaik for Debian/linux a BIOS mod is not required, but not sure i am not a linux guy.
use the SPI file to mod. run HxD, open the mod. SPI, select all bytes, create checksum-16 of selected bytes.
Open any RBU file, copy last 16 bytes. add these 16 bytes to the end of your mod. SPI file. replace the two checksum bytes with the recently calculated ones and save as RBU.