Prime B650M-A Wifi II after update won't start normally

[mrstanley]

• MB: Prime B650M-A WiFi II

Functional Bios: 1413

Corrupted & tested Bios: 1616, 2412, 2413, 2613

CPU: Ryzen 9 7950X3D with Radeon graphics card

CPU cooler: Corsair RGB liquid + 2 fans

Ram: Kingston Fury 2x32GB AMD Expo, 2x16GB AMD Expo

Ssd: Nvme 128GB M.2 Patriot Gen4 4x, WD 4TB

OS: Win 11 Home

GPU: Radeon RX7900XTX

PSU: Corsair 1000W

Case: Fractal white + glass

Issue: System works out of the box with bios revision 1413.

This year 2024 I decided to update bios to latest revision. System start, fans spins, rgb lights on. USB mouse+usb keyboard without rgb light, not functional, monitor black screen. After waiting 2 hours, and repeating some fixes(restart, removing battery, and/or removing/replacing components etc.) nothing happens.

Then I've done bios flashback with 1413 bios and system works.

Please any help ? How can I update bios to latest version 2613 ?

Thank you in advance.

Best regards

Stanley

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[Maxtor999]

Same problem with Asus prime b650m-a wifi II. Have you found a solution?

[mrstanley · Accepted solution]

The solution is staying by firmware 1413. Others versions don't boot, work, are not functionally. Sorry Asus, but do your job better.

[Maxtor999]

I received the motherboard with the 1413 bios installed. Then I updated to 2613 but it no longer booted and no longer showed any signs of life. I tried to clear cmos but nothing happens. Today I downgraded to 1413 but nothing has happened yet. Maybe I need to clear the CMOS. Bios 3014 is also available today.  What is the best method to clear CMOS?

[mrstanley]

Motherboard have USB-A port for USB key stick (with Fat 32 format only works). Upload your BIOS, click button on backside plate mobo until LED light start to blinking. Then leave it for 5 min. Pull USB stick out and click on power button. It would start normaly without Clear CMOS. This was my guide, for testing, and always work.

[Maxtor999]

I just solved it by installing BIOS 2413. I've tried almost all of them. Bad experience with Asus

[Maxtor999]

I have now discovered that the DDR5 ram I mounted does not support EXPO but only XMP. The problems probably depend on this reason. This motherboard only supports EXPO.

Check that you have the correct type of RAM for your motherboard

https://www.asus.com/motherboards-components/motherboards/prime/prime-b650m-a-wifi-ii/helpdesk_qvl_m...