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[REQUEST] Asus x99-a 3.1 4x4x4x4x bifurcation
#11
HOLY Ship I GOT IT TO WORK WITH GRUB!!!!!!!!!

(01-09-2022, 11:50 PM)genius239 Wrote: @PPA

1. Why do you need use flashback to re-write the modified bios? Because it will not verify the cap bios again. As long as you have edit it anything it's impossible keep the signed  and it can't be re-write by ez-flash ai3 ,this is why i want you to use flashback to flash the mod.
Its original feature is revert bios when you got bricked.

Also ,i'm hope you try intel fpt tool.

2. Below is i thought AMIBCP options correspond to the actual pci-e slot. Not sure ,but you could try it.
IOU0 (IIO PCIe Port 2) >> no.4 pci-e slot
IOU1 (IIO PCIe Port 3) >> no.1 pci-e slot
[Image: B20zFQ3G_o.png]

3. You can also change variable via GRUB without bios modification.
Cpu type
[Image: LzaJ4nbl_o.png]

[Image: yF3lg7Xc_o.png]

If you use i often use Grub version and for example ,if you want to change IOU1 (IIO PCIe Port 3) to x4x4x4x4 ,command lines look like below.

setup_var IntelSetup 0x537 0x0

4. Use ru.efi to change variable is also a good chooice.
find
quote
#12
@PPA

1. Wow~it's a good news! Does it did a correct pci-e bifurcation and now you can see the all four nvme devices?

2. Change variable under Grub is only change current bios setting value ,it's not a bios modification. As long as you load the bios default then all will revert to the default.

3. Did you only typed one command line setup_var IntelSetup 0x537 0x0 then it's work?

find
quote
#13
Yep, I ran that exact command and rebooted. After I did that I saw all 4 NVME drives (top PCI slot). I put them in raid 0 and am now getting over 8 GBs Reads.

Thank you!!

(01-10-2022, 10:26 PM)genius239 Wrote: @PPA

1. Wow~it's a good news! Does it did a correct pci-e bifurcation and now you can see the all four nvme devices?

2. Change variable under Grub is only change current bios setting value  ,it's not a bios modification. As long as you load the bios default then all will revert to the default.

3. Did you only typed one command line setup_var IntelSetup 0x537 0x0  then it's work?
find
quote
#14
@PPA

Ok~thanks for the feedback.

find
quote
#15
(01-09-2022, 11:50 PM)genius239 Wrote: @PPA

1. Why do you need use flashback to re-write the modified bios? Because it will not verify the cap bios again. As long as you have edit it anything it's impossible keep the signed  and it can't be re-write by ez-flash ai3 ,this is why i want you to use flashback to flash the mod.
Its original feature is revert bios when you got bricked.

Also ,i'm hope you try intel fpt tool.

2. Below is i thought AMIBCP options correspond to the actual pci-e slot. Not sure ,but you could try it.
IOU0 (IIO PCIe Port 2) >> no.4 pci-e slot
IOU1 (IIO PCIe Port 3) >> no.1 pci-e slot
[Image: B20zFQ3G_o.png]

3. You can also change variable via GRUB without bios modification.
Cpu type
[Image: LzaJ4nbl_o.png]

[Image: yF3lg7Xc_o.png]

If you use i often use Grub version and for example ,if you want to change IOU1 (IIO PCIe Port 3) to x4x4x4x4 ,command lines look like below.

setup_var IntelSetup 0x537 0x0

4. Use ru.efi to change variable is also a good chooice.

Hello! I want to do this thing via GRUB on my asus rog strix x99 or asus sabertooth x99 with 40lane i7 6950x, and want to know where to see commands to get #1 PCIx16 or #2 PCIx16 to work x4x4x4x4, cold you help me a bit?
find
quote
#16
Hello!

I have exactly the X99A/USB 3.1 motherboard and tried the options to make
last port (x8 black) switch to x4x4 mode, but it doesn't seem to work...

I ran Grub in UEFI boot mode and set a few values, but nothing changes.
The values are set - I have them verified after reboot.

Can someone help me? Will gladly donate a reasonable value if this is possible to make it working.

Thanks
find
quote
#17
(11-27-2022, 12:36 PM)molegan Wrote:
(01-09-2022, 11:50 PM)genius239 Wrote: @PPA
1. Why do you need use flashback to re-write the modified bios? Because it will not verify the cap bios again. As long as you have edit it anything it's impossible keep the signed  and it can't be re-write by ez-flash ai3 ,this is why i want you to use flashback to flash the mod.
Its original feature is revert bios when you got bricked.
Also ,i'm hope you try intel fpt tool.
2. Below is i thought AMIBCP options correspond to the actual pci-e slot. Not sure ,but you could try it.
IOU0 (IIO PCIe Port 2) >> no.4 pci-e slot
IOU1 (IIO PCIe Port 3) >> no.1 pci-e slot
[Image: B20zFQ3G_o.png]
3. You can also change variable via GRUB without bios modification.
Cpu type
[Image: LzaJ4nbl_o.png]
[Image: yF3lg7Xc_o.png]
If you use i often use Grub version and for example ,if you want to change IOU1 (IIO PCIe Port 3) to x4x4x4x4 ,command lines look like below.
setup_var IntelSetup 0x537 0x0
4. Use ru.efi to change variable is also a good chooice.

Hello! I want to do this thing via GRUB on my asus rog strix x99 or asus sabertooth x99 with 40lane i7 6950x, and want to know where to see commands to get #1 PCIx16 or #2 PCIx16 to work x4x4x4x4, cold you help me a bit?

Don't know how to help on your PC but I can share some experiences to someone new to this just like me.

1. Download the BIOS file first.
2. You need a " UEFITool " to extract PE32 body from BIOS CAP file, save it to a bin file. For example, I search "IOU1 (IIO PCIe Port 3)" in UEFITool to locate my PE32 body, because I wanted to change the value for my IOU1, which was running with my CPU0.
3. Use " IFR Extractor " to convert the PE32 body Bin file to string file.
4. Use any text editor to search " IOU1 (IIO PCIe Port 3) " in the string file, you can see the address and value just like the image in your quote.
5. Format a 8G USB key(to FAT32), download the Grub file share by @genius239, copy the folder to formatted USB key(full path: X:\EFI\BOOT\bootx64.efi).
6. Reboot your PC with this USB key plugged in, press F8 or something, to enter into the Grub on your USB.
7. Key in the command in Grub screen - you can follow the command shared by @genius239, make necessary changes, that's not difficult.
8. Reboot your computer and check if the command take effect. 

All the tools can be found with Google Search. 

Some steps may difficult for a newbie, please refer to below reference linkage.
Reference: [Guide] - How to Bifurcate a PCI-E slot
find
quote
#18
(08-21-2023, 11:40 PM)iSPS Wrote:
(11-27-2022, 12:36 PM)molegan Wrote:
(01-09-2022, 11:50 PM)genius239 Wrote: @PPA
1. Why do you need use flashback to re-write the modified bios? Because it will not verify the cap bios again. As long as you have edit it anything it's impossible keep the signed  and it can't be re-write by ez-flash ai3 ,this is why i want you to use flashback to flash the mod.
Its original feature is revert bios when you got bricked.
Also ,i'm hope you try intel fpt tool.
2. Below is i thought AMIBCP options correspond to the actual pci-e slot. Not sure ,but you could try it.
IOU0 (IIO PCIe Port 2) >> no.4 pci-e slot
IOU1 (IIO PCIe Port 3) >> no.1 pci-e slot
[Image: B20zFQ3G_o.png]
3. You can also change variable via GRUB without bios modification.
Cpu type
[Image: LzaJ4nbl_o.png]
[Image: yF3lg7Xc_o.png]
If you use i often use Grub version and for example ,if you want to change IOU1 (IIO PCIe Port 3) to x4x4x4x4 ,command lines look like below.
setup_var IntelSetup 0x537 0x0
4. Use ru.efi to change variable is also a good chooice.

Hello! I want to do this thing via GRUB on my asus rog strix x99 or asus sabertooth x99 with 40lane i7 6950x, and want to know where to see commands to get #1 PCIx16 or #2 PCIx16 to work x4x4x4x4, cold you help me a bit?

Don't know how to help on your PC but I can share some experiences to someone new to this just like me.

1. Download the BIOS file first.
2. You need a " UEFITool " to extract PE32 body from BIOS CAP file, save it to a bin file. For example, I search "IOU1 (IIO PCIe Port 3)" in UEFITool to locate my PE32 body, because I wanted to change the value for my IOU1, which was running with my CPU0.
3. Use " IFR Extractor " to convert the PE32 body Bin file to string file.
4. Use any text editor to search " IOU1 (IIO PCIe Port 3) " in the string file, you can see the address and value just like the image in your quote.
5. Format a 8G USB key(to FAT32), download the Grub file share by @genius239, copy the folder to formatted USB key(full path: X:\EFI\BOOT\bootx64.efi).
6. Reboot your PC with this USB key plugged in, press F8 or something, to enter into the Grub on your USB.
7. Key in the command in Grub screen - you can follow the command shared by @genius239, make necessary changes, that's not difficult.
8. Reboot your computer and check if the command take effect. 

All the tools can be found with Google Search. 

Some steps may difficult for a newbie, please refer to below reference linkage.
Reference: [Guide] - How to Bifurcate a PCI-E slot

Hi, Thanks for a great guide. I'm trying to get x4x4x4x4 bifurcation enabled on my x99 Rampage V Extreme.
Following the guide I found out which variable that needs to be changed. But gotten stuck att the last point.

When trying the Grub-way (setup_var IntelSetup 0x534 0x0) I get the following error: guid does not match expected guid/usage: setup_var offset setval?

When using RU.efi: Cant find anything when searching for "IntelSetup".

Would appreciate some guidens if anybody can see what I'm doing wrong. 

/akaRolle
find
quote


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