B450M PRO-M2 MAX : 3 beeps after update to the latest version and not booting

barbosapaul15b802e6

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Hi.

Maybe I made a mistake, but I've updated my 450M PRO-M2 MAX to the latest BIOS ( 7B84vAG ). After that, it's throwing 3 beeps and there's no image and no boot.

I've taken all out, it's not memory, graphics, or any device.
It was updated with a Ryzen 7 3700x. I've also tried with a Ryzen 3 1600x, and it's the same situation.

Could it be that there's no support for these CPUs with the new BIOS? Is it worth trying with a newer one?

Thanks
 

citay

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Please list all your components in detail. I have a feeling it's related to your graphics card (because it's too old to work properly with Secure Boot enabled and pure UEFI mode).
Of course, when you take out the graphics card, the board will also complain, because the -X CPUs don't have integrated graphics. But that's not proof that it's not the graphics card's fault.

I will tell you more after i have seen what hardware you have.
 

barbosapaul15b802e6

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Please list all your components in detail. I have a feeling it's related to your graphics card (because it's too old to work properly with Secure Boot enabled and pure UEFI mode).
Of course, when you take out the graphics card, the board will also complain, because the -X CPUs don't have integrated graphics. But that's not proof that it's not the graphics card's fault.

I will tell you more after i have seen what hardware you have.
I have :

- 2 x XPG Gammix G10 8G DDR4 ( swapped them accross slots, tested each one, no problem)
- 250 Gb NM610 M.2 2280 M2 ( tried removing it, using SATA standard, no change )
- Sapphire Nitro+ RX580 ( tried with an older working HD5450, no change )

I tried resetting CMOS, removing battery.

There was no configuration or hardware change, so I do suspect the BIOS. Both CPUs are good.
 

citay

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Yes, it's the graphics card, i'm reasonably sure of it now. RX 580 is known to give problems in this case. See my post here and follow the links.

A lot of the models of the RX 500-series graphics cards are known not to have a so-called GOP and properly signed firmware, which causes problems with the BIOS in pure UEFI mode due to Secure Boot being enabled by default now. Those cards are not ancient, but they must be right around from that transition period where a GOP was first included. Fact is, they can cause problems, and they can be solved either by modifying the firmware and flashing it, adding a GOP (granted, that's a Vega, but it should work like that), or by using a newer card.

You can try to borrow a newer card (2019 or newer will pretty much guarantee that it plays nice with the new BIOS), enter the BIOS and disable Secure Boot, and try again with your RX 580.
Or if that fails, downgrade the BIOS to the one before this. I'm afraid the HD5450 is of no help at all here, because it definitely isn't equipped for the environment the new BIOS version has created.
 

barbosapaul15b802e6

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Interesting, thanks for the info! It makes sense. I can't enter the BIOS as it is, to see or change something. The card was on the list of things to be changed, so perhaps it's now time to change it.

I'll give it a go, changing the graphics card and see how it goes and let you know :)

Again, thanks
 

citay

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Yes, please reply again if it's fixed with a newer graphics card. In that case i can maybe make a more general topic about the "dangers" of these new BIOS versions when using an older graphics card.

One new GPU i can recommend is the "PowerColor Radeon RX 6600 Fighter", just got this for my brother last month and it's a no-nonsense RX 6600 model that stays quiet. At just under 300 EUR here, it's probably the cheapest card i can fully recommend, good for full details in Full HD even with AAA titles. For an NVIDIA equivalent, you pay too much of a premium right now for my liking, even though i normally prefer them.
 

barbosapaul15b802e6

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Well, I've got to tell you were right.

I picked up a GT1030 Aero ITX from another computer here, tried it and it completed POST. I set the BIOS to CSM and Secure Boot was disabled. Saved changes, rebooted OK. Swapped graphics card and still failed. Downgraded the BIOS version to 7B84vAF, set defaults and did the same thing. This time the RX 580 worked ( it's getting old, but it still does the job nicely ), and that was it! I decided not to upgrade again and stay away from that BIOS version!

I did the same test with a B450M-A PRO MAX and had the same result, except the latest version actually worked after disabling secure boot. But to avoid any unexpected CMOS reset and running into the same issue, I've downgraded to 7C52v3D.

Many thanks!!!
 

barbosapaul15b802e6

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I'm the one saying thanks :)

I imagine a lot of people looking for this info, so documenting it is helpful. This happened on 2 motherboards and 2 older graphical cards. Solution was getting a newer one, getting to BIOS setup and disabling secure boot. IMHO, setting secure boot on as default can cause too many issues.

Thanks a lot for the feedback. I'm always glad whenever i can help!
 
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