Okay, built in my G20CB board in my G20AJ and instantly got two issues.
First: Windows did not boot -> boot device not found and 0xc000021a bluescreen, but listed in BIOS. Tried to reinstall Windows but NVMe M2 still not found. Disabled SATA port where the 3TB HDD is connected, then Windows boots. SATA port with BD/DVD drive works.
Second: WiFi with integrated Bluetooth did not work, but Bluetooth did. That´s because of x1 topology I set in BIOS. Setting to "unknown" solves that. Bluetooth is connected via USB, while WiFi uses PCIe. Fascinating!
Do someone have an idea with that SATA port?
@reactive - doing a similar mod for someone here to get Dell board running kaby lake, and can’t remember on this thread or others like it, if latest microcode was OK to use, or if a certain older version was required. Let me know if you catch this soon, thanks!
The previous links are all expired,anyone can provide a new link for the bios?
Thanks in advance!
Hi,
could you provide a valid new download link?Thx
Hi,
could you provide a valid new download link?Thx
No need for three posts, PM the users or use @reactive tags, hopefully they will reply soon.
I have this copy G20CI-to-G20CB-1402-BIOS-VBIOS1058-GOP1079-unlicensed.bin, but I am not sure when it was posted through the process, not sure how close to complete that one is, or if it’s even one of the more final working BIOS?
If you can find it linked or by name in the thread that should help you figure out if it’s working one or not, it’s not the one you mentioned in your quotes though.
I think it’s the earlier version that have temp issues,would wait for the others to reply.
@Zax007 probably has a copy of Reactive’s mod too, and his own mod, so maybe he will stop in and post some files for you. I’m not sure where Reactive is, I sent him PM a few weeks ago and haven’t heard back yet, nor did he stop in when I tagged him around that same time either, hope he’s OK
@Zax007 @reactive @symvocal
seems the download link of the newwest bios is 404. can u upload it again?
thx!
Hi, here I am… again. Sorry for my late answer… I’m suffering from lack of time.
Currently I can´t provide a proper BIOS file. Have to review everything, if I have the time. This may take a while. I plan to modify another bios, just for unlocking and update purposes. When doing this, I will have a look on the G20CI-to-G20CB
thx for your patience 
@Lost_N_BIOS : PM? I did not received a PM… are they deleted after a while, even if unread???
and thx… I am OK 
@reactive - I don’t think they get deleted until we delete them, not sure what happened there, I don’t see any in my outbox to you either, maybe I thought I sent and didn’t send it out?
Good to see you around, and yes, happy to know you are OK too 
Hope you can find time to dig up your last previous working mod for these guys on the forum, I thought I had a copy of the final one, but seems I was a few versions behind as you guys neared the end of the changes.
Since all older PM´s from you are present, I think the last PM wasn´t sent out for some mysterious and paranormal reasons… X
Reviewing the contents of my folders showing me a small chaos of hundreds of files… I will dive into it. Somewhere there is the final version, maybe i have to clean that last file from serial numbers, MAC and what ever else I found serial related…
Yes, I think it’s paranormal 
I probably typed it out, went to answer someone and closed the tab forgetting to send, and then thought I sent it out 
Sort by latest date, that should give you a good guess on what might be best one, plus what they mentioned above too and the dead link posts here would give exact date you initially posted the files as well.
I know what you mean about 100’s of files, you should see my two BIOS folders
Hi, is this a coffee lake bios mod for the g20cb? Because I read you had a g20aj first, replaced the motherboard with a g20cb, then modded a g20ci bios for the g20cb?
https://www.dropbox.com/sh/ukvmo08x1dine...ETAL4HMH0a?dl=0
@reactive and all interested parties, there is now AIO Tools for this, maybe they would work for this board. Revlaay’s AIO Tool and CoffeeTime
[TOOL] Easy automated Mod tool for Coffee Lake bios
[GUIDE] Coffee Lake CPUs on Skylake and Kaby Lake motherboards (47)
I spent the night and finished reading your entire post. It was a long and interesting challenge. I am a newbie, and my English is not very good, only some ordinary motherboard get 6789th intel i can do. But I was in trouble with the G20CB, the temperature was abnormal and the fan didn’t work. Later I got a bios made by someone else, but only one fan run, I can’t understand the problem. Through communication, it is found that the bios can only operate normally with G20CB VER1.2. There is only one fan in G20CB VER1.6 and the fan speed needs to be set manually. I haven’t tested other bugs because the temperature is too high. According to my guess, can the temperature sensor be read by ACPI? I don’t have a G20CB in my hand, it is far away from me ，in my friend house. Can you provide your latest modified bios test, the links in the post are not available (although not perfect, but I hope the fan can work well for me to test further)--------------------------------- The above content is from Google Translate, because my English is poor
You seem to have given a wrong link. It is the GIGABYTE motherboard. I really want a relatively perfect CI TO CB BIOS.
@huge1376 - you have to tag whoever you’re talking to about the link, so they can give you new one or correct non-gigabyte one (use @username exactly)