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Level1Techs
forum.level1techs.com › hardware hub › motherboards
List of Dr Debug BIOS Codes - Motherboards - Level1Techs Forums
March 28, 2017 - Recently I was busy troubleshooting an issue with my ASRock mainboard and Ryzen and I needed to lookup some of the Mainboard debug display error codes. As It turns out there aren’t really any official manuals I could find for this. So here are my debug codes that I could find and what they mean.
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Asus
rog-forum.asus.com › t5 › other-motherboards › error-code-34 › td-p › 321522
Error Code 34 - Republic of Gamers Forum - 321522
March 7, 2024 - Code 34 is the code the board sits on when stopped off in BIOS....if you see this code but no display investigate your GPU the PCIe lane switches the cable to the monitor or the monitor itself.
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Asrock
asrock.com › support › faq.asp
ASRock > FAQ
Dr. Debug is used to provide codes that represent different errors that your system has encountered. Please see the diagram below for reading the Dr.
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Reddit
redditmedia.com › r › ASRock › comments › 1gd2j1a › x870e_taichi_red_motherboard_code_3439
X870e TAICHI , red motherboard code 34-39 : ASRock
https://pcpartpicker.com/list/QsQGBL My parts list above After system boots to windows the codes on the motherboard hover around 34-39. I...
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T3chImp
t3chimp.com › debug-codes › asrock-debug-codes
ASRock Debug Codes - T3chImp
June 19, 2024 - 30 – Reserved for ASL (see ASL Status Codes section below) 31 – Memory Installed · 32 – CPU post-memory initialization is started · 33 – CPU post-memory initialization. Cache initialization · 34 – CPU post-memory initialization.
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
NO POST - Error code sequence cycle - 00 15 30 4C - Troubleshooting - Linus Tech Tips
June 28, 2020 - Hello! I am facing a no post issue with my PC. The MB error code sequence cycle includes 00 15 30 4C with a second long halt on 4C. Any thoughts around debugging would be highly appreciated. My config: ASROCK Z370 TAICHI Motherboard (Intel Socket 1151/8th Generation Core Series CPU/Max 64GB DDR4-...
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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Explanation needed for Code 30 in ASRock Z77 Extreme4 Mobo | Tom's Hardware Forum
August 29, 2012 - From what I have read, it seems to be related to ram being not quite fully seated so my first step here would be to give the ram sticks a firm push down on both sides just to be sure. On Asus boards, 30 relates to "waking up from S3 state" which seems to be accurate for your symptoms, strange that it would keep that and not revert back to the AA code once up and running.
Find elsewhere
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Asus
rog-forum.asus.com › t5 › overclocking-tweaking › error-code-34-computer-has-been-working-fine-for-months › td-p › 392454
Error code 34, computer has been working fine for ... - Republic of Gamers Forum - 392454
March 7, 2024 - 34 is the code shown when the computer stops off in the BIOS. If you aren't seeing the BIOS screen on your monitor there is something wrong with the route to display. Look to your display or cable to display.
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Reddit
reddit.com › r/homelab › asrock motherboard error codes
r/homelab on Reddit: ASRock motherboard error codes
August 24, 2025 -

Update: Turns out my partner is infinitely smarter than I am. Rubber duck'd it with her and she pointed out I was looking at the memory slots upside down. I had the one stick of ram in slot A2 not A1 - which caused the F1 error.
Why the manual calls that "PEI_RECOVERY_USER" and not something memory related, I'll never know. But meh. It works now!

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TLDR: I have an ASRock B650D4U-2L2T/BCM that keeps getting stuck on an F1 POST code and I can't figure out what it actually wants from me.

TSWR (Too short, will read):

So last week I got an ASRock B650D4U-2L2T/BCM. Like a kid on Christmas I was all excited to build my first 8 bay NAS out of it.

Put everything together, tried to power it up. Found out the PSU I had was having trouble with the backplane of my CS382. So it really was just like Christmas. Got the toy, no way to power it.

Ordered another PSU, put it all together again yesterday and got... Nothing. Fans spin at full speed for about 8 seconds, then wind down after the 7 segment on the mobo sticks on F1.

No monitor ouput on VGA, HDMI or display port, no keyboard for input (plugged in but won't even give me the ability to hit numlock). Plugged in the OOB for it, let DHCP assign an IP (as much as it saddens me to have to put the OOB on my normal subnet, but since the OOB subnet has no DHCP and I have no way to set an IP without the machine booting...) and checked in there. No more information than before. Just a post code of 0xf1.
Checked the online manual for the board, it says that 0xf1 is "PEI_RECOVERY_USER"
It doesn't tell me what that means or how to even start fixing it.

So I assume bios is fried, upload a new version through OOB. OOB reports everything should be good, powercycle the machine for it to take effect. So I do just that.
Nothing still.

Pull battery and short the clear cmos pads, still nothing.
Pulled the CPU and memory to see if something else happened and it beeped at me with error codes that I just lobotomised it.

So now I'm here asking for help. What glaringly obvious troubleshooting have I missed?

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ASRock Forums
forum.asrock.com › forum_posts.asp
X99X Error Code 33 Will Not P.O.S.T. - ASRock Forums
February 22, 2016 - Hello Everyone,I hope you are all doing better than me right now. I just finished my first build in...
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
Error code Pleas Help ASAP | Asrock p67 Extreme 6 mobo - Troubleshooting - Linus Tech Tips
January 12, 2023 - https://linustechtips.com/topic/1480118-error-code-pleas-help-asap-asrock-p67-extreme-6-mobo/ More sharing options... Followers 1 · Go to topic listing Troubleshooting · September Midweek Madness 2025 · TheLANguy · August 19 · 146 · Hi why i have bottleneck rtx 4070 super + ryzen 5 5600x for 1080p?
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Tech Support Guy
techguy.org › home › forums › software & hardware › hardware
Asrock 970 Extreme4 Error code 36 | Tech Support Guy
Hey! I seem to have ran into a problem lately... Every other time I cold boot my PC, my ASrock 970 Extreme4 displays an error code "36" on the MoBo. There is a little red display which runs through all different numbers on startup and then stops on 36. The PC doesn't boot further, but if i...
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ASRock Forums
forum.asrock.com › forum_posts.asp
Debug error codes 37-42 - ASRock Forums
Greetings!I'm having some strange issues with a new build. Some basic Specs:ASRock 670e TaichiAMD...
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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
No post , error code 34 , rampage 4 extreme , 2 y old | Tom's Hardware Forum
September 28, 2016 - Hi , the graphics card was broken. I thought you could post without a GPU but apparently not. Still had this error code 34 without a GPU. New card , problem solved.
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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
ASUS Rampage IV Extreme Error Code 34 | Tom's Hardware Forum
April 14, 2013 - Error code 34 in the manual is a 'CPU post memory initialisation'. One more update. I'm basically having exactly the same problems as this link describes: http://rog.asus.com/forum/archive/index.php/t-22755.html?s=55a1f5c1eecdb1a37d9e9000a25364fe I guess things aren't looking good.
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ASRock Forums
forum.asrock.com › forum_posts.asp
X470 taichi dr debug codes - ASRock Forums
May 11, 2020 - Hi, This is my first time building a pc and everything was fine until at the moment I turn on the pc....