Not booting - 0xd6 - 5 beeps
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=25031
Printed Date: 18 Jul 2025 at 5:15pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Not booting - 0xd6 - 5 beeps
Posted By: BuilderBlue
Subject: Not booting - 0xd6 - 5 beeps
Date Posted: 24 Oct 2022 at 12:42pm
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I recently bought an X470D4U motherboard to use in a home NAS. After putting the PC together I am met with a blank screen. I cannot access the BIOS. My full build for the NAS can be found here: https://pcpartpicker.com/list/zCPw8r" rel="nofollow - https://pcpartpicker.com/list/zCPw8r When powering on the PC, it *usually* beeps 5 times and shows d6 while doing so, followed by 02. I say usually because when it doesn't give 5 beeps, the number codes count down from 99 to 00 in decimal decrementing by 1 every second, then repeats. According to the manual ( https://download.asrock.com/Manual/X470D4U.pdf" rel="nofollow - https://download.asrock.com/Manual/X470D4U.pdf ) the d6 code means DXE_NO_CON_OUT but... I don't know what that means. After some googling, I found that 5 beeps may mean a CPU issue. I tried reseating it but I still usually get the d6 error w/ 5 beeps. I also saw some posts that suggested the GPU might be an issue. This lead me to try inserting an old GPU. I tried two separate GPUs: an old Nividia Gigabyte Windforce I've not used in some time, and also a GTX 1070 that I know works because I just upgraded away from it. Inserting both of these GPUs results in no beeps during the few times I've started the PC, however I still do not get anything on screen. I have seen the hex codes flash through a number of random codes during this. Off the top of my head I have seen them pause on 07, 99, and 9A. I have also seen the 99 to 00 countdown with the GPU in. I have also realized that I may have purchased a CPU without integrated graphics on accident, however if this was the issue I should be able to boot to bios with one of the GPUs inserted, which I can't. And to be clear: when one of the GPUs were in I connected the monitor to the GPU not the mobo. |
Replies:
Posted By: bjlockie
Date Posted: 24 Oct 2022 at 1:34pm
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I think that CPU is 1st gen and the manual says it supports >AMD AM4 Socket Ryzen??PRO/ Ryzen??2nd and 3rd generation series processors I'd send an email to ASRock support. ------------- ASRock B450M Pro4 16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS |
Posted By: Xaltar
Date Posted: 24 Oct 2022 at 2:59pm
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5 beeps typically means no GPU detected. That would track as you said the beeps no longer occur with a dedicated GPU installed. The 1600x does not have an iGPU. Try different display outputs from your GPU, do not connect the monitor to the board's display outputs, they will not function without an APU (CPU with an iGPU). I suspect your system is working with the GPUs but you have the display connected to the wrong port. Worth a try anyway. ------------- 
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Posted By: BuilderBlue
Date Posted: 24 Oct 2022 at 10:31pm
Oof, this is something I did not catch... Thank you. I will send them an email.
As I wrote in my initial post, I have been connecting my monitor to the GPUs when they are installed, not the motherboard. I have also tried two different GPUs. |
bjlockie wrote:Posted By: BuilderBlue
Date Posted: 24 Oct 2022 at 10:34pm
| While I wait for ASRock support to email back though, can someone explain to me what DXE_NO_CON_OUT means? Or link an article that explains? |
Posted By: Xaltar
Date Posted: 25 Oct 2022 at 12:08am
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Sorry, I missed that too, checked your support list: https://www.asrockrack.com/general/productdetail.asp?Model=X470D4U#CPU" rel="nofollow - https://www.asrockrack.com/general/productdetail.asp?Model=X470D4U#CPU It would appear Ryzen first gen are not supported on that board. ASRock Tech Support will likely confirm for you though if you opened a ticket. -------------
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Posted By: eccential
Date Posted: 30 Oct 2022 at 2:33am
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Are we talking about AsRock **RACK** motherboard here? I actually have an X470D4U system (TrueNAS). As mentioned by another poster, the CPU support list does NOT include 1000-series Ryzen. It _might_ work anyway, but you'll want to use an older BIOS, as AsRockRack states, "If you are using a Ryzen 2000 series CPU, please keep the BIOS at version P3.50" Someone I know actually tried a newer BIOS with R5-2600X and it didn't work, so he had to revert back to P3.50, so if there's any chance of 1600X working with it, it would be with the older P3.50 BIOS. Heck, maybe you got an AF-version of 1600, which is physically 2600. Also, most people here likely aren't familiar with AsrockRack boards. X470D4U has ASPEED BMC (Baseboard Management Controller), which has its own video output. In fact, it wouldn't make sense to use an APU on this board, because it doesn't even have a way to direct APU's iGPU output. And yes, you can update the BIOS without supported CPU. In fact, you don't even need to turn the computer ON. You just give it power (5V standby), and the BMC will start up in about a minute or so. Then you can hook up the network (Realtek port to be on the safe side) to a local net with a properly configured DHCP server, and it will grab an IP address. You can then connect to it using any HTML5-capable web browser. From there, you can update the BMC firmware, BIOS, configure fans, check error logs, start/stop/reboot the computer, and so on and so forth. You can also remotely view ASPEED video output, so you can get into BIOS and install OS and all that remotely. This is a server board, so it'd actually be unusual for anyone to put a GPU on it, other than maybe to do compute on it. But that's neither here nor there. I glanced at the parts list in PCPartPicker link, and, well, risking being a little offensive, I'm a bit puzzled at your RAM choice. If you weren't going to use ECC (unbuffered of course), why this board? If you weren't going to use ECC memory, you could've used a much cheaper standard motherboard, along with a 2400G/3400G or something, or if you wanted 6-cores, a 4600G would've been a good low-cost alternative. Only PRO-variants of the APUs support ECC, and they can be hard to obtain, so that's where I'm coming from. I actually own an R3-PRO-2200GE as well as an R5-PRO-4650G. It wasn't easy to get them back when I got them. But I'm using them with ECC memory. Maybe you wanted the 8 SATA ports? But even then, I'd have gone with an LSI HBA, if I wanted lots of SATA drives (and I actually have done that for my TrusNAS build). |
Posted By: Xaltar
Date Posted: 30 Oct 2022 at 4:56am
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Thanks for the input eccential, I am quite familiar ASRock's desktop offerings but have not worked with workstation and server grade boards in years. -------------
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