MSI Z890 Gaming Plus Wi-Fi Motherboard Issues.

[bisquid15fa02f2]

After recently assembling a PC, when turning on the LEDs light up twice - red (CPU)
alternating with yellow (DRAM).
After that, the system starts up.
Tested the RAM with Mem-ohm - 5 in the most complex profile for half an hour. (No errors)
OSCT hourly stability test of the CPU + RAM, also without errors.
This RAM is certified under the motherboard.

BIOS version: 7E34v2A53. (April 22, 2025)
If you roll back to version 7E34v2A51 (02/13/2025), the EZ diodes show the same errors.
And the BIOS settings are reset in the same way as on the latest firmware (I will describe the
BIOS reset problem below)

In general, it turns out strange somehow, the LEDs show errors when starting the computer, but according to the tests, everything is normal.
I swapped the memory strips, the problem did not disappear.
I changed the Xmp profile, the problem also remained.
Games work without problems, do not crash, everything is smooth.
I disconnected the peripherals one by one (coolers, backlight cords, mouse, monitor..)
the problem did not disappear.
-------------------------------

Also, after turning off the computer for a long time, the BIOS settings are reset by default.
They do not reset upon reboot.
They also do not reset if you turn it off and turn it on after a couple of minutes.
They reset after a long shutdown of about 40 minutes and a complete power outage.

The first thing that appears is a warning that the BIOS settings have been reset to
default and the system continues to boot.
The date and time remain unchanged.
The battery is 100% working.

Mother: MSI Z890 Gaming Plus Wi-Fi (s1851, Intel Z890)
CPU: Intel Core Ultra 5 245KF 4.2GHz
RAM: Kingston Fury DDR5-7600 32Gb(Kit of 2x16Gb) Renegade Black (KF576C38RSK2-32)
Power: Fractal Design Ion + 2 Platinum 860W
Cooler: DeepCool AK620 Digital

I ask for help from experts!
Can someone explain, is this fixed somehow or should the motherboard be returned under warranty?

 

[victor.to151d02d6]

It is hard to determine what the normal sequence for the EZ Debug LEDs are during POST. Since your system seems to be working fine, the flashing sequence you see could be normal. Maybe someone with the same motherboard can verify this. The EZ Debug LEDs are used to diagnose problems if your system does not boot or has some other problem, but are mostly ignored if working normally.

 

[bisquid15fa02f2]

Трудно определить, какова нормальная последовательность светодиодов EZ Debug во время POST. Поскольку ваша система работает нормально, последовательность мигания, которую вы видите, может быть нормальной. Может быть, кто-то с такой же материнской платой сможет это проверить. Светодиодные индикаторы EZ Debug используются для диагностики проблем, если ваша система не загружается или имеет какие-либо другие проблемы, но в основном игнорируются при нормальной работе.

I assembled a computer for my friend from exactly the same components and he has no problems.
The LED indicators light up with a short white light and the system works absolutely without failures.
Do you think that LED error indication is a normal event?!
If you have nothing useful to say, then it’s better not to flood the topic.

 

[pandaz]

try to clear plug out 24pin/8pin power cable from MB and clear CMOS for 5 min first....

seems to be a minor bug, for me, as long as system boots ok, EZdebug could be ignored..

 

[victor.to151d02d6]

I assembled a computer for my friend from exactly the same components and he has no problems.
The LED indicators light up with a short white light and the system works absolutely without failures.
Do you think that LED error indication is a normal event?!
If you have nothing useful to say, then it’s better not to flood the topic.

You indicated that your system works normally after EZ Debug LEDs light up. You did not suggest that the EZ Debug LED stayed on, so what are the LED error indications after the system starts up? I am saying nothing in the manual says what the EZ Debug LEDs do during POST. The manual only indicates what the LEDs show if there is an error, so LEDs coming on during POST could be normal. I am not flooding the topic, I am suggesting that what you see could be normal since you can't point to any other problem.

 

[brain.healt156902d9]

Also, after turning off the computer for a long time, the BIOS settings are reset by default.

Sounds like the BIOS battery is dead. If you can get to the battery, give it a test, but make sure when you test a button-cell battery that you have a load in-line, like a small resistor. Button-cells will show their full value if tested without a load.

 

[SmokeyGrayPoupon]

The EZ Debugging LED sequence is simply a pre-boot hardware check. If the LEDs go through the sequence and turn off, there is no issue. If one LED stays on, then the user has a hint to try to diagnosis a problem.
The BIOS reset issue was first described for the MSI z890 Tomahawk WIFI MBs. It was resolved by a firmware update. You might check your MB support page and look under FIRMWARE for an eSIO FW update to fix your BIOS reset issue.
Hope this helps.

 

[bisquid15fa02f2]

Звучит так, как будто батарея BIOS села. Если вы можете добраться до батареи, проведите ее тест, но убедитесь, что при тестировании кнопочной батареи у вас есть встроенная нагрузка, например, небольшой резистор. Кнопочные ячейки покажут свое полное значение при тестировании беАккумулятор BIOS находится в рабочем состоянии,

Sounds like the BIOS battery is dead. If you can get to the battery, give it a test, but make sure when you test a button-cell battery that you have a load in-line, like a small resistor. Button-cells will show their full value if tested without a load.

BIOS battery is in working condition, checked and also used another new battery. The problem remains.

 

[bisquid15fa02f2]

The EZ Debugging LED sequence is simply a pre-boot hardware check. If the LEDs go through the sequence and turn off, there is no issue. If one LED stays on, then the user has a hint to try to diagnosis a problem.
The BIOS reset issue was first described for the MSI z890 Tomahawk WIFI MBs. It was resolved by a firmware update. You might check your MB support page and look under FIRMWARE for an eSIO FW update to fix your BIOS reset issue.
Hope this helps.

In the description of the problem I mentioned that I updated the BIOS firmware and returned it to an older one. These actions did not help.

 

[bisquid15fa02f2]

It's a pity that the American technical support department does not respond to the request with the described problem.. I have a feeling that they know about the problem but are silent about it.

 

[citay]

Try the latest BIOS v2A6 from here, https://www.msi.com/Motherboard/Z890-GAMING-PLUS-WIFI/support

If that doesn't help, perhaps try with the board outside of the case on a wooden table for example, to rule out a short with the case. Because the BIOS resetting itself to defaults is definitely not normal. Your PSU is also a nice model, but just for the hell of it, you could try with a different one, connected on-the-fly using its own cables.