Bug in B660 bios cpu voltage offset

[STARRAIN@ROG]

Hi trihy and w4rdog,
I've sent PM to you. Please help to check you PM.
Thank you.

[trihy]

Hi trihy and w4rdog,
I've sent PM to you. Please help to check you PM.
Thank you.

Hi. Running that bios.

First impression is good. System was able to boot with -0.030 offset. Which doesnt say much, I could do the same before.

But tried with -0.070 which before was instant hang at TUF logo. Now boots fine.

So looks like something changed. Not sure about idle freezes, because it will take a little more time to test.

Also lowest vcore reading is around 0.700. Doesnt seem to show anymore those low values from before like 0.200, 0.150 or so. This looks promising too.

Will report later with more testing.

Thanks

[trihy]

1603 bios:


New 1603 beta bios:


Lowest should be around 0.700, but since Im using -0.070 offset, around 0.630v is correct.

Seems it doesnt show anymore those low weird vcore voltages from the first image.

But will need more testing.

[STARRAIN@ROG]

Hi trihy,
Thank you for your reply.
If you encounter issue on it, please let me know.
Thank you.

[trihy]

Hi. Everything working as expected.

Even tried offset of -0.100 and more. Those values needed a clear cmos on other bios. On this one they work fine. Also no random freeze at idle (this will take a little more testing, but since idle vcore now report expected values, see no reason for idle freeze)

Thanks for taking time into this. And hope they can add this fixes to all other 600 series boards.

[MonstyB]

Hello !

Where can we get this beta bios ? Is it scheduled to be available for download soon ?

I would love to test it too since I'm a huge fan of undervolting and I have juste received my B660-I ROG Strix

[MonstyB]

Okay I'm done with some testing with the voltage offset on this B660-I (CPU : i5 12500)

Same results, it freezes at -0.05V during boot.

Using -0.020V I can reach Windows Desktop but I did get a freeze when trying to reboot.

I hope we will get a fix soon, it's already fixed on my MSI B660M Mortar and I know my CPU can do -0.05V without any freeze.

Regards

[w4rdog]

Hi trihy and w4rdog,
I've sent PM to you. Please help to check you PM.
Thank you.

Hi,

No freezes at all so far, it seems resolved.

Well done!!

[MonstyB]

Hi trihy and w4rdog,
I've sent PM to you. Please help to check you PM.
Thank you.

Hi !

Just curious, does the same beta bios exist for the B660-I ROG Strix ?

Is there a release date already planned for the next bios with this fix ?Â*

[STARRAIN@ROG]

Hi MonstyB,
Do you have freezing issue at idle or only during boot?
Do you have the issue on bios 1603 with bios all default settings?
If you disable C-states in bios, does the freezing issue disappear?
May I have the serial number of your motherboard via PM?
Thank you.