Phantom Gaming X - where are BIOS_A_LED?
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=12439
Printed Date: 05 Aug 2025 at 1:41am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Phantom Gaming X - where are BIOS_A_LED?
Posted By: Burgurne
Subject: Phantom Gaming X - where are BIOS_A_LED?
Date Posted: 15 Sep 2019 at 6:33am
Greetings.
My first post inhere.
In the manual I read that I can see which BIOS is the currently active by BIOS_A_LED or BIOS_B_LED. But I can't find these leds on the mobo at all?
I have downloaded the full manual for this mobo as .pdf to try and make a search for BIOS_A_LED, but only the text where it says that I can see which BIOS is active shows up. Can't find it in any graph or text.
Are the LEDs for the 2 BIOS anywhere on the mobo?
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Best regards
Burgurne
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Replies:
Posted By: CHnuschti
Date Posted: 15 Sep 2019 at 3:01pm
Very likely the LEDs don't exist. Same as on my Taichi Ultimate Z390. http://forum.asrock.com/forum_posts.asp?TID=11736
Must be the result of the continous sloppy copy&paste of manuals from the older to the newer mobos.
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Posted By: Burgurne
Date Posted: 16 Sep 2019 at 4:40am
Oh, I see. The I really don't have a chance to know which one is in use?
I'm a little scared about the option in BIOS saying "Secure Backup BIOS". the help-text describe it like this: Use to duplicate a working copy of the BIOS files to the active BIOS
But I don't know if it is currently running on "normal" BIOS_A or "backup" BIOS_B?
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Best regards
Burgurne
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Posted By: CHnuschti
Date Posted: 16 Sep 2019 at 4:52am
Only BIOS A(ctive) runs always. Only in "emergency" cases the BIOS B(ackup) will be copied into A.
This whole "security" concept is quite unsatisfying IMO, as -beside praying- you can't take active action and must rely on the "automatic" process.
Also unclear is if when you upgrade your BIOS, if both A and B get upgraded or not. Really a shame how this hole issue is left so undocumented.
The option in BIOS saying "Secure Backup BIOS" will copy the current running BIOS A into B, I've tried it.
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