Can’t upgrade the bios

sicknote

sicknote

sicknote

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29 Jan 2008
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I have a msi B660m-a motherboard that’s incompatible with the i5-12400 I have without the bios being updated.

I’m going to need to buy a cpu to upgrade the bios. How do I know what CPU is going to be compatible with the current bios? I’ve checked the compatibility section of the msi website but I don’t know what version of cpu is compatible.
 
Are you sure about that? I'd think H0 & C0 should both be compatible with the release BIOS.

You could try picking up a Celery (g6900) from a marketplace, a few people got them to fit 13th gen CPUs and you may be able to get one cheap. I wouldn't recommend buying one new (unlikely you'll get your money back).
 
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mickyflinn said:
Just had a look and there does seem to be a problem with stepping if you have first release bios ending in 10.

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I can see that they're correct about the later BIOS (the required one is dated March), but I thought that C0 and H0 were both release versions. I'm sure I remember reading about the C0 and H0 stepping in leaks before the CPU was even available. As far as I know, it's not 'new', it's just that Intel use both 6 and 8 P-core dies for the 12400/12400F.

Edit: I did remember right, this article is dated 30 December 2021, I think before the 12400 even launched.
 
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Tetras said:
Are you sure about that? I'd think H0 & C0 should both be compatible with the release BIOS.

You could try picking up a Celery (g6900) from a marketplace, a few people got them to fit 13th gen CPUs and you may be able to get one cheap. I wouldn't recommend buying one new (unlikely you'll get your money back).
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I’ve had a look and I can only see H0 versions of the g6900. What a carry on.
 
sicknote said:
I’ve had a look and I can only see H0 versions of the g6900. What a carry on.
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From the CPU support list, I think they're still compatible with the 10 BIOS, it's only the H0 12100(F)/12400(F) that are listed under 11 (H0 was actually the original stepping/die, it's what the CPUs that were launched in October 2021 used).

When did you buy your board? Have you emailed MSI?
 
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Tetras said:
From the CPU support list, I think they're still compatible with the 10 BIOS, it's only the H0 12100(F)/12400(F) that are listed under 11 (H0 was actually the original stepping/die, it's what the CPUs that were launched in October 2021 used).

When did you buy your board? Have you emailed MSI?
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Bought the board in September for my sons Xmas. Between that and the crap Kolink case I picked up…..lol. I’ve contacted MSI to see if they can help out. My local phone/computer repair shop wants £55 to update the bios.
 
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