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: 18 Jul 2025 at 9:50am
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. |