Superbug or instant death? - DRAM: ? ? 0 MiB - Olinuxino is down for the count!

[steveh]

Hi All,

I have been working with one of my A13 Olimex boards for 7 weeks or so now flawlessly, and when I turned on my Olinuxino A13 today I see an error message on the console saying;

U-Boot SPL 2013.10-rc2-08400-g8a4621c-dirty (Aug 15 2014 - 18:11:45)
Board: A13-OLinuXino
DRAM: ? ? 0 MiB
### ERROR ### Please RESET the board ###

I tried several uSD card images of various builds, but they all report the same thing. I have several other Olimex A13 boards, and they boot from these cards fine. A reset or power cycle still produces the same result on the effected board.

I find it sort of hard to believe that the SDRAM chips has failed - silicon is not that dodgy.

The 1.5V rail is a nice smooth 1.501V - which is good for those sot-23 regs. VTT is a firm .72v - also amazing for a voltage divider generated VTT reference.

Has anyone seen this sort of thing? Or has their board done this?

Cheers,
Steve