I bought a new MSI MEG x570 unify mainboard from Amazon.de and it is working properly most of the time but has one major issue:

When I turn on my pc after being away a few hours it displays the debug code "00", most fans of the system start spinning at a fixed rate and the LED of my GPU turns on but there is no video output.

I found two methods that work to help getting the motherboard back to normal:

1. Clearing CMOS will make it possible to boot on the pc afterwards but you will lose all personalized settings you did in the BIOS, ex. PWM Fans and RAM frequency settings.

2. Turning the power supply unit off and back on while the pc is turned on will make it possible to boot the pc normally and no settings are lost.

These two solutions are useful in the meantime but I don't want to do this on the long term so I am still searching the underlying cause of this error. I will be thankful if somebody has a suggestion on how to fix this problem.

I already tried to solve this by flashing the latest non-beta version of the motherboard BIOS (Version 7C35vA3), I also installed the Drivers from the Support website of the mainboard but it did not solve my problem.

August 2020 update: I did multiple bios updates (currently A5) but it still happens sometimes...

I’ve been searching for this issue amongst X570 board and it seems like it affects MEG Ace’s more than MEG Unify’s but the overall outcomes are similar.

The issue manifests when debug led under usual circumstances will read out CPU temps will display a code of “00.” No such code is listed in the manual. When this happens, all fans within my system will fall to base RPM despite fan curves that were initially set in BIOS. Windows is otherwise stable (no errors, BSOD, etc). I’ve left HWinfo64 up the last few times this has happened and CPU temps increase as to expected. The first instance of this occurred roughly one month after completing my build. A reboot will resolve the issue. Once the system reboots you can hear the fans spooling up to their designated fan curve speeds. After the initial “00” event, it has been occurring every 1-2 days.

This is of particular concern considering any number of CPU intensive programs could be running while all system fans, most notably CPU cooler, won’t be able to compensate beyond baseline speeds.

System is Ryzen 3700x, Noctua D-15 cooler, X570 Unify BIOS ver. E7C35AMS.A30. All fans are plugged into appropriate fan headers and all are under PWM control.

I’m hoping there is a solution for this issue. Any others with this problem please share your experience since I might have missed something.

So I start up my PC which has been running fine for the last couple months. This time however there's no signal output going to the monitors and the debug code 00 on the mobo. No matter what I seem to try, I just can't get it displaying anything. Anyone know what this is about?

Any update on this? Latest bios for the most part increased the time it takes for this to happen. It's still annoying though. Takes my cpu temps from generally staying under 70c (spikes to 75 fairly rarely) to hitting 88-90c. I wouldn't even care about the bug if it didn't affect the temps so much.

Would setting the fan to dc over pwm result in this not happening when the bug kicks in or would it still mess with the fan speeds? My cooler is the dark rock pro 4.

I just built a new pc with my brothers help. 9900X CPU, 4070 Ti Super, X870 Tomahawk etc. everything is functioning fine and the motherboard displays the number 00 when the computer is on. However when I restart it rapidly changes numbers until the computer turns back on. Is this anything I need to worry about?

I have had this issue for about a few week now in which randomly when I try to turn on or restart my pc I get error code 00 with red and orange light.

And the thing is all my components work perfectly fine when it does boot normally as seen all temp and state and even run Benchmark and it was running great but some times and some days I keep getting error code 00 and for some reason last night when I tried restarting my pc I got error code 4F which is "DXE IPL is started" a.d waited for like 10 minutes with no luck and had to force shutdown.

The only way i seem to fix temporarily is multiple strange ways either or all the same time is: unplug power cable / drain all power / clear CMOS / laying my PC on its side. In which most the time it works and boot mainly when I see error code 15 in which I know if will boot. But I if I try to restart or shutdown and turn on some time can get error code 00 with red and orange LED.

Some peoole in the internet said dead CPU and such but how can I t be dead if most the time it works perfectly fine and some other people say.

Having loose fan header can cause this issue? Which sounds dumb as all my fans are spinning. Normally when either it boots fine or when error code 00 happens.

I have currently bios version that is of August as that was the last optimation for memory so I don't see how that is the cause?

Any help would be greatly appreciated.

My specs are

Motherboard - x670e carbon WiFi CPU - Ryzen 7 7800x3d Memory have am 5 compatible 6000Mhz ram

If you need further information i can give let me know

Hi there, I've just finished building my PC and was met with a b4 error on the EZ debug which was resolved after unplugging my USB headers however I am now looking at a 00 code on the EZ debug and the green boot light.

I have been unable to get it to post since building and have just checked the CPU and motherboard and as far as I can tell there are no bent pins/scuffs. I have flashed the bios with the latest update and tried reseating the RAM but to no success. All parts are new and appear to be working fine (lights on etc). Wondering if anyone has experienced the same? Has anything I can try before taking to a PC repair shop?

My specs are:

MSI X870E Carbon Wifi AMD 9800X3D Sapphire Nitro 9070 XT Corsair CL30 6000 DDR5 (compatible according to the msi website list) Samsung 9100 1tb M.2 Samsung Evo 2tb M.2 Corsair rm1000x cybernetics gold. Thermalright elite cooler.

CASE: Phanteks P600S CPU: AMD Ryzen 9 5950X COOLER: NZXT Kraken Z73 FANS: Lian Li Uni Fan SL120 (3 front, 3 top, 1 rear) MOTHERBOARD: MSI MEG X570 Ace RAM: G.Skill Trident Z Neo 64 GB (F4-3600C16Q-64GTZN) PSU: Seasonic Prime TX-1000 GPU: Asus ROG STRIX 1080TI

The first time I powered on the system I got debug code 0d. A search suggested this was due to the stock BIOS not recognizing the 5950X, so I used the Flash BIOS USB to update. That apparently worked because now I get 00 instead. The CPU LED is lit up.

I have tried:

• Testing each individual RAM stick in DIMMA2

• Unplugging/reconnecting both 8-pin and 24-pin connectors from motherboard and PSU

• Plugging AIO fan header into AIO_FAN instead of CPU_FAN

• Double-checking all cable connections

• Checked CPU for bent pins. Cleaned up paste, reseated, reapplied paste, put AIO back on

• Left GPU out and cleared CMOS

I’m at my wit’s end. This is my first AMD build, so I don’t have another CPU or motherboard, nor do I have access to one. That’d make it a lot easier to determine which might be the culprit!

I don’t think it’s the PSU, since everything else seems to be getting power (AIO and fans).

Any suggestions on what else I can check or try? Please let me know if I left out any pertinent info.