[coreboot] KGPE-D16 / Problem booting with two CPUs

[Elisenda Cuadros]

Thank you for your reply Timothy.

Vendor Bios doesn't print any special message regarding this.

In fact it shows a total of 28 cores (16+12).

I thought mixing CPUs from same families was supported.

Regards,

- Eli

On 11/04/18 20:44, Timothy Pearson wrote:
> I don't know if coreboot has support for differing CPUs in the same
> mainboard; it's not something I can recall testing at any point.
>
> The failure is occurring far before memory initialization, in CAR, in
> core setup.  I'd guess it has something to do with the two CPUs you have
> installed having different core counts.
>
> Does the vendor BIOS print a message about the core count being limited
> on one of the CPUs for compatibility reasons?
>
> On 04/11/2018 12:57 PM, Elisenda Cuadros wrote:
> > Hello,
>
> > After testing the board for some weeks I bought another CPU (6276). I
> > installed this into CPU1 slot and a 6238 in CPU2.
>
> > I checked that both CPUs are shining and also the memory (Micron
> > MT18JSF25672PDZ-1G4F1DD, populated in A2/C2/E2/G2 slots).
>
> > The problem is that Coreboot seems to hang at the beginning. I attach
> > console.log.
>
> > I reinstalled all the devices twice, checked the vendor manual, docs in
> > coreboot.org, messages in mailing list, but I don't know what is causing
> > the problem.
>
> > Last test I've done is booting with vendor bios, and it boots without
> > problem.
>
> > Any ideas?
>
> > Thank you for your help.
>
> > Regards,
>
> > - Eli
>
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