X870E Nova Wifi code 00
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=113264
Printed Date: 01 Sep 2025 at 3:42pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X870E Nova Wifi code 00
Posted By: melchizedek
Subject: X870E Nova Wifi code 00
Date Posted: 15 Jul 2025 at 10:48am
| Hello, I bought a system with an Asrock X870E Nova Wifi and everything worked great, however, after a month it suddenly powered off and now it doesn't POST and shows code 00. I can share more details if this isn't going to /dev/null. Thanks. |
Replies:
Posted By: Xaltar
Date Posted: 15 Jul 2025 at 12:43pm
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Are you using a 9000 series X3D CPU? Code 00 typically means CPU not found. You can try reseating the CPU as well as double check your CPU 12v power connector.The issue could potentially be caused by a dead or dying PSU. If you are using an 9x00X3D then I would recommend you remove the CPU and check it for any burned contact pads. If the CPU is damaged then you will want to contact your retail outlet or AMD and begin the process of RMAing the CPU. Once you receive a replacement you should then flash your BIOS to the latest version. This isn't necessary if you are using a 7000 or 8000 series CPU however. ASRock released an official statement on the 9kX3D issue https://forum.asrock.com/forum_posts.asp?TID=99106&title=asrock-am5-official-statement" rel="nofollow - here A full list of your system specs would be helpful. ------------- 
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Posted By: melchizedek
Date Posted: 15 Jul 2025 at 3:46pm
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Thank you Xaltar. Yes I'm using a 9800X3D. I was dreading taking a look, but thankfully didn't notice any obvious burned contact pads. I'm no expert though and unfortunately the picture I took is terrible :( https://pasteboard.co/n51yuvOCj7SS.jpg" rel="nofollow - https://pasteboard.co/n51yuvOCj7SS.jpg https://pasteboard.co/4VdvRRqi78YZ.jpg" rel="nofollow - https://pasteboard.co/4VdvRRqi78YZ.jpg Reseating the CPU and power connectors didn't seem to help. Seems like the most probable thing is the PSU, assuming I didn't assess the contact pads wrong. Currently the PSU is drawing 55W while displaying 00 and outputting nothing over HDMI. |
Posted By: Xaltar
Date Posted: 15 Jul 2025 at 4:01pm
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Looks like there isn't any obvious burning there, which I suspect would be the case if the CPU died as a result of the issue I linked. I feel like there should be some discoloration of the substrate (green PCB) if there has been excessive heat around the power delivery pins. Try using https://forum.asrock.com/forum_posts.asp?TID=630&title=how-to-clear-cmos-via-battery-removal" rel="nofollow - this method to fully clear your CMOS and see if that helps at all. If not, then see if you can get your hands on another PSU to test with. Good luck  -------------
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Posted By: melchizedek
Date Posted: 15 Jul 2025 at 4:39pm
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Thank you. I did already try using the Clear CMOS button as well as shorting the CLRCMOS1 pins. I just removed the two heatsinks on the sides to access the CMOS battery, but the battery is still half-covered by the heatsink in the middle, which doesn't appear to have any screws on the front and is firmly fastened somehow. Do you know if the screws are on the back of the board? Removing the board will be a huge pain for me so I'm hoping that's not the situation. Or maybe its possible to slip out the CMOS battery to the side without removing the middle heatsink? Also, earlier I shorted the CLRCMOS1 pins with a screwdriver, but don't have a simple jumper for it, so sustaining the short for 4 hours per your recommendation might be tricky. I do have x3 jumpers that were included with the board labeled "24W46" which look like they are made for this but can you confirm please? |
Posted By: Xaltar
Date Posted: 15 Jul 2025 at 5:41pm
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I am afraid I can only help out with boards I own when it comes to how things come apart. Looking at the pictures on your product page it would seem the PCH heatsink partially covers the CMOS battery holder, if so there must be a way to pop it out without removing the PCH heatsink. There should be a spring catch that holds the battery in, usually releasing that will cause the battery to pop up a little then it can be slid out. I doubt you will need 4 hours but it can't hurt anything. All that's needed is for the clear CMOS pins to be shorted, you can use anything that achieves this. Just be sure all power is disconnected from the system and that the caps have been discharged (press and hold power button). If that doesn't resolve the issue then I would recommend you open a ticket with https://tw.asrock.com/events/tsd.asp" rel="nofollow - ASRock Tech Support . They should be able to advise you regarding the CPU and any possibility it may have been damaged. I wouldn't worry too much, AMD and ASRock have both been doing everything they can to make things right with this issue. I am still hopeful this isn't the case for you but it may be best to start the process incase. -------------
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Posted By: eccential
Date Posted: 15 Jul 2025 at 7:39pm
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What BIOS version? Shouldn't flash-back function work even without a CPU? |
Posted By: melchizedek
Date Posted: 15 Jul 2025 at 9:33pm
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The board indicates it shipped with 3.16 but I never verified or changed the version myself. I suppose its possible the company who assembled did flash it, but I doubt it. My understanding is the flashback should work, but even the manual says to try removing the battery if doesn't. |
Posted By: eccential
Date Posted: 15 Jul 2025 at 11:24pm
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The point is, ASRock released BIOS updates specifically addressing the issue involving 9000X3D CPUs. 3.20 release notes say, "improve minority proportion of AMD 9000 series CPU boot issue." So if you're on older than 3.20, you should use the flash-back function to update to the latest NOW, to see if it will boot again. |
Posted By: melchizedek
Date Posted: 16 Jul 2025 at 2:41am
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Yes, this is clear to me, however, it was because my board stopped POSTing that I became aware of the issue. Now that it doesn't POST, I can't flash the BIOS to the version that avoids the issue. Or maybe there's a way to flash even though it doesn't POST? I'm not an expert so would be grateful to be enlightened if such a thing is possible. Thank you. |
Posted By: melchizedek
Date Posted: 16 Jul 2025 at 2:44am
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Oops, I should have researched for one second before I responded. Yes ok, I understand I can use the flash-back function to in flash-forward. It will take me some time to get a FAT32 thumbdrive as I'm in the middle of nowhere in Costa Rica, so all of this is particularly slow and challenging. Thanks again. |
Posted By: melchizedek
Date Posted: 21 Jul 2025 at 11:53am
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The board still doesn't POST after following Xaltar's instructions for clearing CMOS. My question is, given the CMOS clearing didn't help the board POST, is there truly a possibility that flashing could help it POST? Obviously if the board would POST, I would flash it to prevent the issue with the 9000 series X3D CPUs. I ask because I'm waiting to just buy a new PSU to cross that off the list and feeling its best to move on to this phase now, rather than wait for to get my hands on a USB stick. Thanks. |
Posted By: Th3Cap3
Date Posted: 29 Jul 2025 at 12:30am
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I'm running into the same issue, just flashed to the latest BIOS version, I've checked everything but the board is still showing code 00. I've noticed that sometimes it'll fire up if I let it sit unpowered for a little bit and it stays on and runs for days/weeks as long as I don't shut it down. This leads me to think it's not a hardware issue per se. I'm running an AMD 9950x3d and I've noticed that my wifes computer whos running a 7800 has never had this issue. |
Posted By: Xaltar
Date Posted: 29 Jul 2025 at 1:26am
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I hate to say it but it may be worth trying an RMA on the CPU, for both of you. As far as I know AMD have been very helpful regarding RMAs of the 9000X3D series given the compatibility issues with ASRock's boards. I am not certain but from what I have figured out it seems AMD provided specs to ASRock that were unsafe and while other brands took a less aggressive tack in their default BIOS configuration, ASRock opted for performance, pushing the CPUs to the upper edge of the spec AMD provided. As it turned out, not all Ryzen 9kX3D CPUs could handle it. Again, purely speculation on my part but it does fit the narrative and explain why AMD didn't point the finger at ASRock on this issue. Whatever the reason, a small number, compared to the number used in ASRock boards, of AMD 9k X3D CPUs experienced partial and in some cases complete failure. The upside is that, AFAIK as of this moment, AMD have not failed to honor RMA claims on CPUs that fell victim to this issue. The issue has been fully resolved in the latest BIOS of all supporting boards. From what I know, a few voltage settings were set to much more conservative values, more in line with other manufacturers. This was not a mistake or isolated issue, all ASRock boards that support 9k X3D CPUs had the same values set which is why I believe AMD's provided spec was off. If it was only a particular board model then I would lean to ASRock making a mistake but for every single model to be susceptible, that had to be an issue with the provided specs of the CPU range and their tolerances. None of that matters to either of you right now however, I would RMA those CPUs and make sure your boards are on the latest BIOS version when you get your replacements. If the CPU was damaged then that should completely resolve your issues. -------------
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Posted By: Th3Cap3
Date Posted: 29 Jul 2025 at 8:59pm
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I filed a warranty claim with AMD yesterday and ordered a new 9950x3d from Amazon yesterday as well so I have something in the meantime (no idea how long the RMA process will take). I'll upgrade the wifes computer to the 9950x3d with the RMA'd CPU when/if it comes back under warranty. Also as part of my testing (did this last night JUST in case), but my wife is running the exact same setup as me minus she has a 7900x CPU. Slaped my 9950x3d in her machine (that was previously running fine with the 3.30 BIOS) and it gave me the same error, double 00. |
Posted By: Xaltar
Date Posted: 29 Jul 2025 at 9:38pm
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Damn, pretty much what I was expecting, thanks for the update. Let us know how the warranty claim goes -------------
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Posted By: Th3Cap3
Date Posted: 29 Jul 2025 at 11:26pm
| Yeah, after all my testing I figured you were right, have to say though, in the 26 years I've been building computers, this is the first time I've ever had a CPU issue. I guess it was about that time :facepalm: LOL |
Posted By: Xaltar
Date Posted: 30 Jul 2025 at 3:10am
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I hear you, the only CPU issues I ever had were popping them by overclocking too aggressively and bent pins. Since AM4 and Coffee Lake however I have seen a lot of failed CPUs here on the forums. It seems the memory controllers are a serious weak point. This issue isn't related to the IMC though so that's something at least. -------------
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Posted By: melchizedek
Date Posted: 15 Aug 2025 at 4:18am
| Yihuu!! I replaced the CPU and my computer boots. Thank you both to posting replies, they helped me very much to diagnose and fix the issue here in Costa Rica. Muchas gracias! |
Posted By: Xaltar
Date Posted: 15 Aug 2025 at 4:40pm
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Awesome Glad to hear you got your system up and running! -------------
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