05-04-2018, 08:47 PM
(05-04-2018, 07:24 PM)t4_4t Wrote: From this, I guess that "cards with higher grade are more prone to problems."
However, it is not a problem of the card itself,
a problem with the "ROCK64" side including the driver.
The point that pointed out your log in the previous report means the above.
"Your-EVO" is "fall-back" to 25MHz after failure occurred at initialization.
This is "Card-A)" below, it is far below the performance of the original card.
And that is probably a problem on the "ROCK64" side, not doubting your card.
I think it's a bit chicken and the egg... I believe the issue is actually to do with the memory, as 0.6.28, which is the first of the images to fail to boot, and also sends the CPU into a bit of a thermal runaway, was the first build to introduce the change in DDR speed. The MMC / microSD failure may just be a red herring that resulted from issues further up the chain. rock64 boards shipped with two different speed grades of DDR, depending on cost. I have the pre-production v1.1, and also a first batch v2.0 production board, so they could have different speed RAM to your boards. The reports on the github issue tracker about kernel updates resulting in broken images may or may not also related.
Thanks for trying though. Hopefully we'll hear from ayufan or xalius, who should be able to shed some light on what the issue is.
