Successfully patched Z170X-UD5 TH CFG Lock (MSR Ex02)

[bluepr0]

Hello @iLikeHackintosh, I've followed this guide https://www.tonymacx86.com/threads/dell-7020-4k-monitors-on-intel-4600-integrated-gpu.282589/ which is basically the same as this one but I'm finding something VERY weird.

I've dumped the BIOS I currently have installed in my Optiplex 9020, checked the CFG and DVTM values and are as below

Both values are 0x2. I booted from the GRUB USB and read these values before I overwrite with the new ones required to enabled 4K and... surprise surprise they're not returning same value!. How is this even possible? O_O

Here's an image of my display, when I read the values both are 0x01

Any ideas on what's going on here?

Thanks a lot!

 

[maclinuxg4]

AGAIN BEWARE BEFORE MODIFIED BIOS AT YOUR RISK

plz the modification propose on this topic is base on Z170-UD5-TH.
so you might cheff if the offset could be correct and the value.

this topic doesn't provide for other CM.

 

[maclinuxg4]

check how much dmt did you set ? (0x1 may be for 32Mbyte)
check

 

[bluepr0]

check how much dmt did you set ? 51 may be for 32Mbyte)
check

The point of my message is that when I read the values from the dumped BIOS it shows both 0x2 and when I read it booting from the GRUB USB it shows other value.

I know the values I need to set, but I'm wondering why these are not the same. Which makes me afraid as they should be the same.

 

[canyondust]

One value is contained in the bios image file (top) the other is the settings as it appears in your bios config. Changing options in your bios on the motherboard can affect other settings, including invisible/inaccessible settings.

 

[bluepr0]

One value is contained in the bios image file (top) the other is the settings as it appears in your bios config. Changing options in your bios on the motherboard can affect other settings, including invisible/inaccessible settings.

The thing is the BIOS image file (top) is my actual BIOS dumped, I didn't download the BIOS image from the website. That's why it's freaking me out that it's not the same value. It should be the same when I read it from the BIOS using the GRUB USB and when I read it from the dumped BIOS installed in my mobo

 

[iLikeHackintosh]

Hello @iLikeHackintosh, I've followed this guide https://www.tonymacx86.com/threads/dell-7020-4k-monitors-on-intel-4600-integrated-gpu.282589/ which is basically the same as this one but I'm finding something VERY weird.

I'm not the author of the post you have linked, You shall ask an author of original post.

Also, are you sure that you understand the difference of patching BIOS and modifying hidden BIOS settings?

 

[bluepr0]

I'm not the author of the post you have linked, You shall ask an author of original post.

Also, are you sure that you understand the difference of patching BIOS and modifying hidden BIOS settings?

Thanks! I might not be entirely sure but I took the risk and applied the changes I wanted and it worked! Thanks for your guide <3

 

[iLikeHackintosh]

Thanks! I might not be entirely sure but I took the risk and applied the changes I wanted and it worked! Thanks for your guide <3

Just for case, my trials and guide based on these are described here: How to change hidden CFG Lock setting

I'm gald it helped you out!

 

[cosministor]

Hi all
I did managed to boot and install Mojave 10.4.6 on a X11SPI-TF from supermicro with Opencore.
I am trying to follow this guide in order to unlock the MSR 0xE2
Thing is, once the section extracted and coverted to text, my CFG lock section looks like this and I don't know exactly what I should change.
I am at work for the moment but tomorrow I will update the post with myt EFI anbd full specs

Thank you for your support

0x5AF59 Setting: SetVID Decay Disable, Variable: 0xAD {05 91 BD 19 C5 19 26 18 06 00 AD 00 10 10 00 01 00}
0x5AF6A Option: Disable, Value: 0x0 {09 07 A9 00 30 00 00}
0x5AF71 Option: Enable, Value: 0x1 {09 07 B2 0D 00 00 01}
0x5AF78 End of Options {29 02}
0x5AF7A Setting: SAPMCTL_CFG LOCK, Variable: 0xB1 {05 91 B4 19 BC 19 27 18 06 00 B1 00 10 10 00 01 00}
0x5AF8B Option: Disable, Value: 0x0 {09 07 A9 00 00 00 00}
0x5AF92 Option: Enable, Value: 0x1 {09 07 B2 0D 30 00 01}
0x5AF99 End of Options {29 02}
0x5AF9B End Form {29 02}