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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Dr Debug "64" on one CPU, auto shutdown on another. | Tom's Hardware Forum
October 20, 2014 - It is still stuck on either 64 or b4, I cant tell... Any help would be appreciated, since junkeymonkey is gone for today! ... http://www.asrock.com/support/faq.asp?id=286 you may have memory that went bad in some way??? you may want to re look up the asrock beep codes for your board to see if its the same be sure you test the sticks one at a time in all slots and as I said un hook the hard drive its not needed to test to enter the bios the other bad part would be not having parts to try like a extra set of memory to see if different sticks of another brand or kit would work seeing how one stick still just failed and the other stick totally failed you may be on the right path [??]
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Reddit
reddit.com › r/pcmasterrace › asrock z97 extreme4 error code 64
r/pcmasterrace on Reddit: ASRock Z97 Extreme4 Error Code 64
June 6, 2016 -

Whenever I boot up my system, I receive an error code 64 on my motherboard. I've searched multiple places and found out it's a motherboard issue. I tried pushing the reset CMOS button and un tightening my CPU cooler a bit. Usually, I am able to solve my own problems, but I am at a loss right now. Any help would be appreciated.

EDIT: I unplugged a bunch of shit and apparently my PSP was drawing too much power.

Discussions

Dr Debug "64" on one CPU, auto shutdown on another.
I can't go into the BIOS, or do anything of that sort. It does end up going past that, but only after a LONG time. I checked on the mobo for the Dr Debug code, since I have an AsRock 970 Extreme4: it was stuck on "64" which results in a CPU DXE initialization failure. More on tomshardware.com
🌐 tomshardware.com
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October 20, 2014
z77 extreme4 - led error code 64 - TweakTown Forums
ASRock has hired a new tech support staff member just to assist you with their full range of motherboards. More on tweaktownforum.com
🌐 tweaktownforum.com
October 27, 2012
Can't boot new ASRock Z77 Extreme 4 with i7-3770 Dr. Debug code A6 - TweakTown Forums
Re: Can't boot new ASRock Z77 Extreme 4 with i7-3770 Dr. Debug code A6 ... A few days ago I bought a brand new mobo & CPU to replace my old DX58SO & i7-920. I installed everything according to the booklet and verified it. This is my system: OS: Windows 7 Ultimate 64-bits (installed months ago ... More on tweaktownforum.com
🌐 tweaktownforum.com
Computer won't boot. ASRock Z77 Extreme 4 Dr. Debug Error Codes 4F and 67
Hello, a few days ago I reset my computer but when it tried to boot, all the fans came on for about 7 seconds then shut off. Every time I attempt to boot the same thing happens and I get the error codes 4F (DXE IPL is started) and 67 (CPU DXE Initialization) on my motherboard. All fans are... More on forums.tomshardware.com
🌐 forums.tomshardware.com
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January 20, 2014
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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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ASRock Forums
forum.asrock.com › forum_posts.asp
Z97 Extreme6 Post Error 64 - ASRock Forums - Page 1
November 10, 2015 - First of all here's my set-up:-MB - Z97 Extreme6OS - Windows 10 64-BitBios - P2.50CPU - Intel i7-4790KCooler...
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XDA Developers
xda-developers.com › home › other hardware › the most commonly seen debug error codes on asrock motherboards, and how to fix them
The most commonly seen debug error codes on ASRock motherboards, and how to fix them
February 28, 2024 - ASRock maintains a long list of motherboard debug codes to help you understand the two-digit codes you see on your motherboard. But as with most motherboards, many of these codes are just status indicators that tell you what your motherboard is up to at any given point. Filter those out, and you're left with error codes typically seen when your PC fails to boot. I have highlighted those codes below, along with some potential ways to fix them. The Dr.
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TweakTown Forums
tweaktownforum.com › forum › tech-support-from-vendors › asrock › 50484-z77-extreme4-led-error-code-64
z77 extreme4 - led error code 64 - TweakTown Forums
October 27, 2012 - As rock Tech, I'm getting error ... z77 extreme4 - led error code 64 Error 64, from the boards manual, is: CPU DXE initialization (CPU module specific)....
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
Asrock Z77 Extreme4 debug code 64 fix not working [solved - no one helped] - Troubleshooting - Linus Tech Tips
August 18, 2013 - Hi Guys, So I was using my PC as usual (skype and steam didnt want to open or log in or anything, don't know id that's releveant). I rebooted my PC (razer comms needed a restart after an update) and now when I turn my PC on I get debug code 64 on my motherboard. I googled and the fix for this err...
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ASRock
asrock.com › support › index.asp
ASRock > Debug LED Troubleshooting Checklist
Debug LED Troubleshooting Checklist · Contact Technical Support (MB / Graphics Card / Mini PC) Webmaster Mailbox · Latest BIOS Update · Latest Drivers Update · Latest Utilities Update · The codes that you see are status codes. It is normal to see several codes during the POST.
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Asrock
asrock.com › support › faq.asp
Question: What is Dr. Debug and how do I troubleshoot ...
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.
Find elsewhere
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Tom's Hardware Forum
forums.tomshardware.com › home › components
Computer won't boot. ASRock Z77 Extreme 4 Dr. Debug Error Codes 4F and 67 | Tom's Hardware Forum
January 20, 2014 - 67 "could" be that your CPU fan is screwed on too tight:http://forums.tweaktown.com/asrock/50260-z77-extreme4-led-error-code-64-a.html Also could be making sure the RAM is seated Properly: http://www.overclockers.com/forums/showthread.php?t=705092 Inspect the CPU/Socket to see if there are any bent pins: http://rog.asus.com/forum/archive/index.php/t-22755.html?s=55a1f5c1eecdb1a37d9e9000a25364fe And like the others said, could be corrupted BIOs chip, was there a power outtage/blackout recently?
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ManualsLib
manualslib.com › brands › asrock manuals › motherboard › z87 extreme4 › user manual
Dr. Debug - ASROCK Z87 Extreme4 User Manual [Page 36] | ManualsLib
October 12, 2013 - 64 · 65 · 66 · 67 · 68 · 69 · 70 · 71 · 72 · 73 · 74 · 75 · 76 · 77 · 78 · 79 · 80 · 81 · 82 · 83 · 84 · 85 · 86 · 87 · 88 · 89 · 90 · 91 · 92 · 93 · 94 · 95 · 96 · 97 · 98 · 99 · 100 · 101 · 102 · 103 · 104 · 105 · 106 · 107 · 108 · 109 · Contents · Table of Contents · Bookmarks · Table of Contents · Advertisement · Dr. Debug is used to provide code information, which makes troubleshooting even ·
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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
reddit.com › r/asrock › dr debug 62
r/ASRock on Reddit: Dr Debug 62
February 20, 2025 -

New build is throwing what looks like a 62 error on the Dr Debug which is DXE_SBRUN_INIT, whatever that means. Any ideas? No screen output, beeps, nothing.

Edit-threw in some really old video card with a vga/hdmi port, now shows a 9E code on the little digital display on the board, this code isn't listed in the manual😅

With an old GPU, it runs fine, but the sparkle throws the 9E code.

Built new system: B550 EXTREME4

3950x

G.Skill Trident Z Neo Series (Intel XMP) DDR4 RAM 32GB 2x16gb

Sparkle Intel Arc A380 ELF DDR6

XPG Core Reactor II Modular PSU

2tb Team Group NVME M.2 4tb Team Group NVME M.2

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CGDirector
cgdirector.com › home › hardware › troubleshooting asrock dr. debug led error codes – everything you need to know
Troubleshooting ASRock Dr. Debug LED Error Codes - Everything You Need to Know
June 17, 2023 - All the codes you want and their meanings can usually be found toward the end of most manuals—the front legend should tell you where it is. If you no longer have access to the manual, however, you can also find this information on the ASRock website. Simply visit the support page for your specific motherboard model by searching it up, and then download the user manual. You’ll get a PDF of the complete manual and it’ll have the Dr. Debug codes you need.
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Reddit
reddit.com › r/asrock › motherboard dr. debug code changes constantly
r/ASRock on Reddit: Motherboard Dr. Debug Code Changes Constantly
June 19, 2025 -

This is a new build, X870E Nova WiFi, AMD 9800X3D, Corsair Dominator DDR5 RAM, 2X 32 GB sticks. I do not have XMP enabled, it is set to standard in BIOS and Task Manager shows 4800 MT/s with 61.6 GB available.

As the title says, the Dr. Debug code changes fairly constantly during bootup. It is currently going between 44, 45, 46, 46, 47, 48, 49, 50, 51, 52 and probably others I am missing, in random order. I saw a few 60s last bootup I'm sure. Restarting does not stop this. The system itself seems to be running fine- I'm posting this from the computer. Games run, I'm connected to the internet, the machine is not laggy.

The internet says these codes are primarily related to the RAM possibly being bad. I don't really know where to start with this, the last time I built a computer it just all worked and I got to AA on first bootup.

Edit: I forgot to say I tried reseating the RAM, which did nothing.

Edit 2: After posting this, I tried resetting the CMOS for old time's sake. Now after boot the display just says 00.

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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Question - AsRock X670E Taichi Dr Debug codes meaning? | Tom's Hardware Forum
June 16, 2023 - 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...
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ManualsLib
manualslib.com › brands › asrock manuals › motherboard › z87 extreme6 › user manual
Dr. Debug - ASROCK Z87 Extreme6 User Manual [Page 40] | ManualsLib
October 12, 2013 - 64 · 65 · 66 · 67 · 68 · 69 · 70 · 71 · 72 · 73 · 74 · 75 · 76 · 77 · 78 · 79 · 80 · 81 · 82 · 83 · 84 · 85 · 86 · 87 · 88 · 89 · 90 · 91 · 92 · 93 · 94 · 95 · 96 · 97 · 98 · 99 · 100 · 101 · 102 · 103 · 104 · 105 · 106 · 107 · 108 · 109 · 110 · 111 · 112 · 113 · 114 · 115 · Contents · Table of Contents · Bookmarks · Table of Contents · Advertisement · Dr. Debug is used to provide code information, which makes troubleshooting even ·
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Reddit
reddit.com › r/buildapc › aorus z690 master debug code 64 popping up
r/buildapc on Reddit: Aorus z690 Master debug code 64 popping up
June 22, 2024 -

Im sure this may have been answered, but I have only seen this answered for different model motherboards.

I have been having an error code 64 off and on for the last few months and have not been able to come up with a good solution to fix this. I have seen on other posts that it could be anything from a bad motherboard down to something plugged into usb outlets.

I'm curious about the possibility of a bad stick a RAM? I have 2 vengeance DDR5 64GB(2x32 GB) sticks of RAM (I believe it's 2 sticks of 32gb) I recently booted up my pc and had debug 64 pop up 3 different times after power cycling. I removed one stick and it still popped up. I then put the one back in I originally removed, in turn removing the one I left in previously. I then turned on my pc and had no issues. So I once again turned off my pc and put the "bad" stick of RAM back into a different slot in the MB once done debug 64 popped again. I repeated the process once more to try another slot with debug code 64 popping consistently and one once I removed that bad RAM againt, everything runs smooth.

[Upadte]
Okay so I just had dubug 64 pop up again while on startup. So I shut power down completely and I slotted the other stick of ram again and had no issues.This has always seems to be an intermittent issue. I dont mean to be a pain, but what other troubleshooting could I do in order to solve this issue before it worsens? I havent seen a lot of links or anything regarding this on an aorus z690 Master. I try any and all troubleshooting

I REALLY appreciate your time and knolwdge

What are your thoughts?

Thanks in advance!