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ASUS ROG Maximus Z690 Hero Issue 90MB18E0-MVAAY0

Posted on January 3, 2022June 30, 2022 By Eriksson

ASUS has announced that it will be working on a replacement plan for their Maximus Z690 Hero motherboards. The issue is known as the ASUS ROG Maximus Z690 Hero Issue 90MB18E0-MVAAY0. The Z690 is an Intel’s latest chipset for 12th generation Alder Lake processors. This issue affects motherboards with the part number: 90MB18E0-MVAAY0 and serial numbers starting with MA, MB, or MC.  

90MB18E0-MVAAY0
Image Credit: ASUS

The Maximus Z690 is ASUS’ high-end motherboard. 

What Happened – ASUS ROG Maximus Z690 Hero Issue 90MB18E0-MVAAY0

On December 19th, Redditor u/TheMaxXHD posted ASUS ROG Z690 Hero Motherboard; Two mobos dead in 3 days, one caught on fire where he describes his experience where a component on the motherboard caught fire.  

ASUS ROG Maximus Z690 Hero Issue 90MB18E0-MVAAY0 - Damaged MOSFET
Image Credit: Reddit

That component was a MOSFET, a transistor used to deliver 5V of power to various components including DDR5 RAM memory. MOSFETs are the most sold device in world history and are practically in every modern-day computer equipment. 

Redditor u/Duhjahno posted a similar experience of his ASUS ROG Maximus Z690 Hero melting and shared pictures showing his motherboard’s MOSFETs melted down.  

YouTuber BuildZoid reviewed this in his video My thoughts on the ASUS Maximus Z690 Hero failures – YouTube 

BuildZoid went on to discover the root cause of the problem. The MOSFETs were installed backwards.  

Since then, ASUS made an announcement on Tuesday, December 28th stating that they would be working with local government agencies on a replacement plan. 

About ASUS

Asus, a Taiwan company, is the world’s 5th-largest PC vendor (January, 2021). The ASUS ROG (Republic of Gamers) brand has won several awards over the years. The ASUS ROG Maximus Hero has itself earned 28 awards from various blogs and several raving reviews: 

  • ROG MAXIMUS Z690 HERO AWARDS 

Motherboards with this issue, should be returned as soon as possible. If you are planning to buy a 12th generation Intel Chipset from any prebuilt gaming PC’s, double check them. Make sure they do not have the ASUS ROG Maximus Z690 Hero Issue 90MB18E0-MVAAY0. 

Do you need to find your motherboard model? Read How to find my motherboard model.

PC Hardware Tags:ASUS ROG Motherboards, hardware

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