How can I update BIOS "B"
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3938
Printed Date: 31 Oct 2024 at 7:29am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: How can I update BIOS "B"
Posted By: Aristoc
Subject: How can I update BIOS "B"
Date Posted: 04 Dec 2016 at 1:31am
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" rel="nofollow - x99m Killer i7 6800K (only allows BOOT , update with BIOS version 3 or higher not 1.90.) I tried the tool in UEFI that looks like it is supposed to copy A -> B. After rebooting I got a DrDebug 67 and no boot. So I switched back to A and everything was fine again. Thank you! I read this post from parsec and another person with the same problem.. I will try it. http://forum.asrock.com/forum_posts.asp?TID=2948&KW=bios+a-%26gt%3Bb&PID=14591&title=x99-extreme-4-bios-update-oc#14591 |
Replies:
Posted By: wardog
Date Posted: 04 Dec 2016 at 4:44am
See pg83 of your manual.
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Secure Backup UEFIPosted By: Aristoc
Date Posted: 04 Dec 2016 at 5:31am
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I can confirm that the UEFI back up utliity in Tools, UEFI A -> B , will make a copy of the BIOS in A and copy it over to the BIOS in B. I verified this by physically moving the switch on the MOBO from position A to position B and my computer booted no problem. Also on B I checked the BIOS version in System Information (Windows 10 running here) and all confirmed to be the latest BIOS. Thank you https://postimg.org/image/sc3ir0y8v/" rel="nofollow">  |
Posted By: wardog
Date Posted: 04 Dec 2016 at 9:30am
The manual is a wondrous thing to have at hand   |
Posted By: parsec
Date Posted: 04 Dec 2016 at 11:32am
Yes, the manual is a great reference. From the Fatal1ty X99M Killer manual, about the A and B BIOS chips. Please check the underlined portion of the last section below, which is the same for any ASRock board that has dual BIOS chips: This motherboard has two BIOS chips, a primary BIOS (BIOS_ A) and a backup BIOS (BIOS_B), which enhances the safety and stability of your system. Normally, the system will work on the primary BIOS. However, if the primary BIOS is corrupted or damaged, just flip the BIOS Selection Switch to "B", then the backup BIOS will take over on the next system boot. After that, use "Secure Backup UEFI" in the UEFI Setup Utility to duplicate a working copy of the BIOS iles to the primary BIOS to ensure normal system operation. For safety issues, users are not able to update the backup BIOS manually. Users may refer to the BIOS LEDs (BIOS_ A_LED or BIOS_B_LED) to identify which BIOS is currently activated. So what does that mean? Is this simply incorrect? Or is there a subtle difference in, "... not able to update the backup BIOS manually"? ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: nahawand
Date Posted: 24 May 2018 at 11:05pm
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Hello, I have x99m Killer/3.1 and having nightmares with booting up. one of the stupid things I made is updating the B Bios to V4 and thought it would update the main board as the manual stated that users are not able to update B bios. successfully I've updated both bios A & B to v4 and unsuccessful bootup. the computer is stuck on some kind of loop and freezes up at different stages of boot. even if it reaches windows recovery process (which never happened in v4 so far) the windows is corrupted and it can't fix it. I tried booting ubuntu from a usb stick but still no hope. my pc configuration is: ASRock Fatal1ty X99m killer/3.1 Core i7 5930K 4x 8GB Ballistix Sport 2666MHz Samsung SM951 NVMe GTX 970 Gigabyte mini
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