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Gigabyte Z170 \ H170 \ B150 Discussion, Help and Owners Club ( Ultra durable and Gaming editions ) - Page 154

post #1531 of 1575
Quote:
Originally Posted by tknight View Post

I have downgraded my Z170X Soc Force board a few times now and it has worked perfectly. I don't know which version of the FPT Z170 tool you are using, but I use the following one below and after making a USB DOS Boot drive using Rufus, I then copy the files across and it boots up and automatically runs the FPT tool and downgrades the bios successfully.

FPT Z170 DOS - https://www.mediafire.com/?p66jhts7cfi26y8
Does using the FPT Z170 DOS downgrade the backup Bios? I was thinking of trying F21 Bios on my Z170 HD3, should I do it, has anyone else tried it on that motherboard?
post #1532 of 1575
Quote:
Originally Posted by wingman99 View Post

Does using the FPT Z170 DOS downgrade the backup Bios? I was thinking of trying F21 Bios on my Z170 HD3, should I do it, has anyone else tried it on that motherboard?
Backup (2nd) bios is downgraded after the first successful boot of the main bios to the same version number.
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post #1533 of 1575
Quote:
Originally Posted by lio256 View Post

Backup (2nd) bios is downgraded after the first successful boot of the main bios to the same version number.
Does that happen with all downgraded Bios flash? Like going from F6 to F5 Bios.

So you are saying if I upgrade my Bios to F21 with first successful boot of the main Bios to the same version number it will upgrade the Backup Bios also?
post #1534 of 1575
Quote:
Originally Posted by wingman99 View Post

Does that happen with all downgraded Bios flash? Like going from F6 to F5 Bios.

So you are saying if I upgrade my Bios to F21 with first successful boot of the main Bios to the same version number it will upgrade the Backup Bios also?

The way it works on my Gigabyte Z170 board and in fact it works the same on my Asus and Asrock Z170 boards as well, is that when I perform a bios update, after it has completed the update, it will power down, then power back up for about a minute or so, and during this stage it updates both the main and back bios with the update I just ran, and then it will power down again and then power back up and then post video.

At that point both the main and backup bios are now running the same version. This procedure also occurs when running the FPT Z170 DOS Tool to downgrade the bios.

Note the above procedure occurs only when you have the dual bios feature turned on. If you have turned off dual bios and are running only on a single bios, selected by the switch on the board, then only the current bios you are running on will be upgraded or downgraded and the other bios not in use, will not be altered.
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post #1535 of 1575
Quote:
Originally Posted by tknight View Post

Note the above procedure occurs only when you have the dual bios feature turned on. If you have turned off dual bios and are running only on a single bios, selected by the switch on the board, then only the current bios you are running on will be upgraded or downgraded and the other bios not in use, will not be altered.

That's great info to know now. Problem is, this isn't explained anywhere else, certainly not in the BIOS update section where you go to get the latest version. And oddly enough, Gigabyte's techs don't seem to know this. I called them on my F21 woes and was told I could simple switch to the backup BIOS "since your board has dual BIOS". Switching to the back BIOS revealed to my horror, that it too was updated to F21. The tech support person was also amazed.

Anyway, if this is true, it would be nice if Gigabyte clearly posted it in the BIOS download section.

Thanks.

BTW I've since moved to the Gigabyte Z270 Gaming 8 board and am running their F4 BIOS with no issues. Interestingly enough the F5 BIOS (support for Optane memory) for this board has the same warning.... "This BIOS prohibits updating to earlier version BIOS". At this point, I'm not touching that BIOS! unless I actually need Optane support.
post #1536 of 1575
Quote:
Originally Posted by tknight View Post

The way it works on my Gigabyte Z170 board and in fact it works the same on my Asus and Asrock Z170 boards as well, is that when I perform a bios update, after it has completed the update, it will power down, then power back up for about a minute or so, and during this stage it updates both the main and back bios with the update I just ran, and then it will power down again and then power back up and then post video.

At that point both the main and backup bios are now running the same version. This procedure also occurs when running the FPT Z170 DOS Tool to downgrade the bios.

Note the above procedure occurs only when you have the dual bios feature turned on. If you have turned off dual bios and are running only on a single bios, selected by the switch on the board, then only the current bios you are running on will be upgraded or downgraded and the other bios not in use, will not be altered.
I don't know of a switch for Bios on my Z170-HD3. When I flash the Bios with the same version the PC posts then powers down and reposts aging what is going on? How do you know all what is going on with BIOS?
Quote:
Originally Posted by sygnus21 View Post

That's great info to know now. Problem is, this isn't explained anywhere else, certainly not in the BIOS update section where you go to get the latest version. And oddly enough, Gigabyte's techs don't seem to know this. I called them on my F21 woes and was told I could simple switch to the backup BIOS "since your board has dual BIOS". Switching to the back BIOS revealed to my horror, that it too was updated to F21. The tech support person was also amazed.

Anyway, if this is true, it would be nice if Gigabyte clearly posted it in the BIOS download section.

Thanks.

BTW I've since moved to the Gigabyte Z270 Gaming 8 board and am running their F4 BIOS with no issues. Interestingly enough the F5 BIOS (support for Optane memory) for this board has the same warning.... "This BIOS prohibits updating to earlier version BIOS". At this point, I'm not touching that BIOS! unless I actually need Optane support.
How do you switch to the backup BIOS?
Edited by wingman99 - 5/3/17 at 12:40pm
post #1537 of 1575
Quote:
Originally Posted by tknight View Post

I have downgraded my Z170X Soc Force board a few times now and it has worked perfectly. I don't know which version of the FPT Z170 tool you are using, but I use the following one below and after making a USB DOS Boot drive using Rufus, I then copy the files across and it boots up and automatically runs the FPT tool and downgrades the bios successfully.

FPT Z170 DOS - https://www.mediafire.com/?p66jhts7cfi26y8
Do you copy the files with the folders, like the BIOS folder and FPT tool folder, just how do you do it?
post #1538 of 1575
Quote:
Originally Posted by wingman99 View Post

Do you copy the files with the folders, like the BIOS folder and FPT tool folder, just how do you do it?

You create a bootable DOS usb stick using Rufus, then you copy the files from the extracted FPT Z170 zip file to the usb stick.
Then you rename the bios version file you want to downgrade to and call it bios.bin and copy that to the usb drive.
If your board uses an Intel Nic then in order to maintain your original mac address, you have to use a hex editor and insert it into the bios file you want to downgrade to. If you dont do this step then your NIC mac address will be overwritten with a default number. This will not affect the operation of your NIC, but you will then have a non conforming mac address.
Then you just boot from the usb stick and it will automatically run the tool and downgrade your bios.

Also in regards to your question about your boards dual bios, your particular board does not have the feature of selecting which bios to run. It is always in dual bios mode, which means that every time you update the bios, it updates the backup as well.
Edited by tknight - 5/3/17 at 10:20pm
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post #1539 of 1575
Quote:
Originally Posted by tknight View Post

You create a bootable DOS usb stick using Rufus, then you copy the files from the extracted FPT Z170 zip file to the usb stock.
Then you rename the bios version file you want to downgrade to and call it bios.bin and copy that to the usb drive.
If your board uses an Intel Nic then in order to maintain your original mac address, you have to use a hex editor and insert it into the bios file you want to downgrade to. If you dont do this step then your NIC mac address will be overwritten with a default number. This will not affect the operation of your NIC, but you will then have a non conforming mac address.
Then you just boot from the usb stick and it will automatically run the tool and downgrade your bios.

Also in regards to your question about your boards dual bios, your particular board does not have the feature of selecting which bios to run. It is always in dual bios mode, which means that every time you update the bios, it updates the backup as well.
Thanks for answering my questions I have some more. Was reading that FPT flash tool overwrites many things in Bios, do you have a Intel 82579V onboard LAN, if you don't have a that NIC did FPT flash tool overwrite the MAC?

Because the hex editor for the MAC inserted into the bios file you want to downgrade to will NOT work with network chips of ANY other brand, i.e. Marvell, Atheros, Realtek, Via, Broadcom! Check your mainboard's specifications before trying the following: https://forums.tweaktown.com/gigabyte/53618-x79-intel-gbit-lan-gbe-firmware-update-howto-socket-1155-1150-a.html

Also in HWiNFO64 could you check if your motherboard name and the hardware for the motherboard like the Audio Codec, NIC is correct?
post #1540 of 1575
Quote:
Originally Posted by wingman99 View Post

Thanks for answering my questions I have some more. Was reading that FPT flash tool overwrites many things in Bios, do you have a Intel 82579V onboard LAN, if you don't have a that NIC did FPT flash tool overwrite the MAC?

Because the hex editor for the MAC inserted into the bios file you want to downgrade to will NOT work with network chips of ANY other brand, i.e. Marvell, Atheros, Realtek, Via, Broadcom! Check your mainboard's specifications before trying the following: https://forums.tweaktown.com/gigabyte/53618-x79-intel-gbit-lan-gbe-firmware-update-howto-socket-1155-1150-a.html

Also in HWiNFO64 could you check if your motherboard name and the hardware for the motherboard like the Audio Codec, NIC is correct?

All my Z170 boards, including my Gigabyte Z170, has the Intel I219-V Gbit chip and it does overwrite the mac address on that model.

The FPT Z170 tool overwrites the mac address on any Intel Gbit Lan chip.

Everything is showing up correctly in Hwinfo64 for my Z170 SOC Force board after downgrading the bios.
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