Hello,
Kyösti Mälkki said,
> ECC signals between DIMM sockets and AM3 are not routed in AM1I-A
> boardview files I found, while they are in AM1M-A boardview.
>
Are you able to link to these boardviews?
If ECC will not work on the AM1I-A but is known to work on the AM1M-A, and
the boards are very similar, what would the steps look like for porting
from one to another? The guide at [1] is very detailed about information
gathering, but is scant on details about virtually everything else. (not to
mention, does inteltool etc. even work on AMD boards?)
Thanks,
-Matt
[1] https://www.coreboot.org/Motherboard_Porting_Guide
On Thu, Sep 26, 2019 at 6:29 AM Alberto Bursi <alberto.bu...@outlook.it>
wrote:
> Unbuffered and/or NOT registered.
>
> The buffered/registered is cheaper on ebay, and also higher density (up to
> 32GB or 64GB per DDR3 DIMM) so it could look like a bargain but it isn't.
>
> It's cheaper because you can't use it on most consumer hardware.
>
> AMD hardware that supports buffered and/or Registered ECC is Threadripper
> or server processors (Opteron, Epyc).
>
> Similar for Intel, only server-grade Xeons and Enthusiast i7 processors
> (Socket 2xxx or something) support that.
>
> Buffered/Registered RAM exists for servers that need to use large amounts
> of RAM, hundreds of GB or even a TB or more (for multi-CPU systems).
>
> -Alberto
> On 26/09/19 03:34, Matt B wrote:
>
> Hello,
>
> This might be a dumb question, but not having a manual to go off of, would
> the ECC ram have to be buffered or unbuffered? (if it can be made to work
> with the AM1I-A at all) Any other important specifications?
>
> I bought a AM1I-A (I've had my eye on a good deal on ebay) and it should
> be here in a couple of weeks.
>
> Sincerely,
> -Matt
>
>
> On Mon, Sep 23, 2019 at 8:06 PM Matt B <matthewwbradl...@gmail.com> wrote:
>
>> Hello,
>>
>> That has short but very informative indeed. Thank you. :)
>>
>> Even if the pinout is the same, is it possible that some connections have
>> been left disconnected or components unpopulated on the board, which would
>> prevent ECC from working?
>>
>> As a more general porting question, what steps should be taken in porting
>> coreboot to the larger board (the 'M' variant) to avoid unpleasant
>> consequences?
>>
>> I would think the PCI layout would be different (obvious, since one board
>> has more slots then the other) but what should not be assumed to be the
>> same?
>>
>> Thanks,
>> -Matt
>>
>
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