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z370 K6 nasty uefi bug

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=7119
Printed Date: 07 Aug 2025 at 2:25am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: z370 K6 nasty uefi bug
Posted By: Cata79
Subject: z370 K6 nasty uefi bug
Date Posted: 30 Dec 2017 at 3:16pm
" rel="nofollow - Hi all,

I have encountered an ugly issue with my K6. I have an 8700k, Z370 K6, 2x16 Gb Corsair vengeance (worked without errors on AM4 platform), Corsair TX750W PSU, Corsair H110i GT AIO.

I can overclock easily the CPU or the memory, no issues there. Issues are appearing when I disable the CSM boot. I restart the computer and the mobo hangs with code 04 (memory) or 97 (pci-e). Same problem with both 1.20 and 1.30 Bios versions. If I leave CSM enabled, the board boots fine everytime.

Reseated everything without success. Anyone had this issue?

On the other side of things, 8700k pisses on my old Ryzen 1700 :) 

Happy new year! Tomorrow :D



Replies:
Posted By: mahalata
Date Posted: 05 Feb 2018 at 6:31pm
" rel="nofollow - I just built my new system with Z370 Gaming K6 and I have exactly the same problem!

It seems that it's related to the video card though - somehow this bug doesn't allow the video card to start in UEFI and therefore you need  the CSM to boot up the video card in legacy.

Do you also have Asus ROG STRIX-GTX1080-A8G-GAMING?

I contacted the Asrock support and they replied that, of course, they have tested this motherboard with bios 1.30 and CSM disabled and it boots up just fine.


Posted By: Cata79
Date Posted: 05 Feb 2018 at 7:16pm
gtx 1070 here, meanwhile updated to 1.40 and reversed to 1.30. The problem magically disappeared.


Posted By: mahalata
Date Posted: 05 Feb 2018 at 7:29pm
" rel="nofollow -
Originally posted by Cata79 Cata79 wrote:

gtx 1070 here, meanwhile updated to 1.40 and reversed to 1.30. The problem magically disappeared.

Really? Where did you get 1.40 from? Did they publish 1.40? Because on the website the newest UEFI is 1.30. I guess they took it down because of some reason. Can you send it to me, please?


Posted By: Cata79
Date Posted: 05 Feb 2018 at 7:35pm
at some point, it was published (related to spectre patch). It was pulled down, meanwhile. Unfortunately, I really don't have the file anymore, I would have sent it to you :(

Other tip: try not to spam del or f2 to enter bios, press it just once. Sometimes bios hangt when spamming keys.


Posted By: mahalata
Date Posted: 05 Feb 2018 at 7:36pm
" rel="nofollow - I managed to find it on their ftp server. I will flash it later today.
ftp://europe.asrock.com/BIOS/1151/Z370%20Gaming%20K6(1.40)ROM.zip

Why did you revert back to 1.30 though?


Posted By: Cata79
Date Posted: 05 Feb 2018 at 7:59pm
I had one suspect reboot.


Posted By: Animalm4st3r
Date Posted: 05 Feb 2018 at 8:21pm
1.4 or the Spectre Update was pulled down because Intel fucke up the Microcode. It is not recommended to use this Update


Posted By: lska021
Date Posted: 26 Nov 2018 at 12:24am
I recently built 9900k with this mobo and i have exactly the same problem!
Have you found a fix yet?


Posted By: Cata79
Date Posted: 26 Nov 2018 at 6:03pm
Somehow the issue disappeared after some bios updates. Unfortunately, I don't have an useful answer :0
how is 9900k running on this mobo?



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