ultrafast boot not working
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8759
Printed Date: 16 Sep 2025 at 5:09am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: ultrafast boot not working
Posted By: jbmerrill
Subject: ultrafast boot not working
Date Posted: 23 May 2018 at 6:16am
|
" rel="nofollow - [URL=][/URL]Hi, I have not been able to get ultrafast boot to work on my x399 professional gaming motherboard. I have tried enabling secure boot, and of course disabling csm, and all I get is either a black windows loading screen, or an error that states winload.efi could not be found / loaded, and it just hangs / freezes, at which point I reflash the bios (because I don't want to remove side panel to reach the clear cmos switch). Has anyone got this working (windows 10), and if so, could you tell me what your config is? Thanks, Bryan Hi, I was finally able to get this to work as follows: enable secure boot, disable csm, enable ultra fast boot, use uefi install of win10, leave dr. debug led disabled, set 1st boot slot to windows boot manager. ------------- X399 Pro Gaming, 2990wx Threadripper,128GB G.Skill RGB 3200,EVGA 1200 P2,EVGA GTX 1080 Ti x 2 SLI, Enermax Liqtech 360mm,Samsung 970 EVO/960 Pro/850 EVOs, Toshiba x300 HDDs, Thermaltake Chaser MK-1 |
Replies:
Posted By: Blindegren
Date Posted: 25 Jul 2018 at 4:03am
|
" rel="nofollow - Hi, I was finally able to get this to work as follows: enable secure boot, disable csm, enable ultra fast boot, use UEFI install of win10, leave dr. debug led disabled, set 1st boot slot to windows boot manager. Hello, I also have this problem and I can't find a solution anywhere else, so I was hoping you could help me. In your edit, you said you did the following = enable secure boot,- that I can do. disable csm,- that I have also done. enable ultra-fast boot,- Also that one use UEFI install of win10 - This I don't understand can you explain? leave dr. debug led disabled, - This I also don't understand set 1st boot slot to windows boot manager. The 1st boot slot does not show me "windows boot manager." Hope you can help me with this :)
|
Posted By: gizmic
Date Posted: 25 Jul 2018 at 10:36am
|
windows key + R (Run) then type msinfo32 look for "Bios Mode" if it says Legacy there is no way you can run on Ultra Fast boot you have to see if there is a way to convert legacy to uefi windows installation i can imagine they'll be a couple of commands and risk of wiping your windows if you dont know what you're doing ------------- 
|
Posted By: Blindegren
Date Posted: 25 Jul 2018 at 6:18pm
|
Thank you! I see legacy but I know a way to change it to UEFI what about leave dr. debug led disabled, - what does that mean, and where do i do it
|
Posted By: VUMeter
Date Posted: 27 Jul 2018 at 3:28am
|
If you OS is installed in legacy mode I don't think there is a way to 'convert' it to UEFI. You'll have to reinstall. For me, I don't think I really notice a difference in boot time between normal and ultrafast boot. Both take about 25 seconds to get to the desktop and ready to use. I installed Windows 10 in UEFI mode, and I have ZoneAlarm security, so that could be the culprit in boot/OS launch timing. ------------- X370 TaiChi | 1700X P3.10 stock clocks | (2x 16GB) 32GB FlareX 2400MHz. https://valid.x86.fr/ikadaa" rel="nofollow"> 
|
Posted By: gizmic
Date Posted: 27 Jul 2018 at 9:44am
|
" rel="nofollow - There is a way to convert to uefi windows I?™ve done it way back I did it because I?™m using multiple drives in the system and not for fast boot Fast boot is terrible for me as I?™m the type who changes OC settings everyday -------------
|
Posted By: VUMeter
Date Posted: 27 Jul 2018 at 7:07pm
|
I stand corrected. As gizmic stated, yes there is a way to do it. My bad, apologies. ------------- X370 TaiChi | 1700X P3.10 stock clocks | (2x 16GB) 32GB FlareX 2400MHz. https://valid.x86.fr/ikadaa" rel="nofollow">
|
Posted By: jbmerrill
Date Posted: 27 Jul 2018 at 10:10pm
|
for dr. debug led disable, look for a uefi tab called advanced, then look for an option to change southbridge settings. on my x399 fatal1ty professional, there is a Dr. Debug LED setting for enable, disable. I found it needed to be disabled. you have to have installed your windows in uefi mode on a gpt disk. Uefi mode is the current method for installing and results in faster/more functional O.S. Since you are in legacy mode, you would need to convert it to uefi, but I have not done that. This also means you must have a motherboard that has uefi bios. I will look into this. if your boot tab does not have an option for 'windows boot manager' it may be because of legacy mode. Just set your primary hard drive in the first slot. I tried enabling ultra fast again recently and could not do it, so I don't know what is going on. I will have to try again. ------------- X399 Pro Gaming, 2990wx Threadripper,128GB G.Skill RGB 3200,EVGA 1200 P2,EVGA GTX 1080 Ti x 2 SLI, Enermax Liqtech 360mm,Samsung 970 EVO/960 Pro/850 EVOs, Toshiba x300 HDDs, Thermaltake Chaser MK-1 |
Posted By: gizmic
Date Posted: 28 Jul 2018 at 2:37pm
|
Have you convert to uefi mode this includes bios settings and boot drive setting if not fast mode will not work -------------
|
Posted By: kodak
Date Posted: 05 Jun 2020 at 3:06pm
|
I got the same problem with B450M-HDV R4.0. Windows is installed in UEFI mode and the culprit seems to be a GTX970 card which theoretically supports UEFI. With other card fast boot works fine. With GTX970 I got 5 POST beeps right after I disable CSM. Any ideas? |