XO 1.75 hangs on countdown

Sameer Verma sverma at sfsu.edu
Mon Mar 18 21:10:42 EDT 2013


On Mon, Mar 18, 2013 at 5:59 PM, James Cameron <quozl at laptop.org> wrote:
> A hang at the number "10" means that Open Firmware did not continue
> past the point of setting up the page (section) table and turning on
> the MMU and caches.
>
> http://tracker.coreboot.org/trac/openfirmware/browser/cpu/arm/olpc/resetvec.fth#L144
> is where the "10" is shown.  The "11" is just beyond, a few lines
> down.
>
> My guesses are:
>
> - faulty memory,
>
> - faulty processor,
>
> - fault in wiring between processor and memory,
>
> - incorrect firmware version for the memory, (some memory required a
>   specific version),
>
> - corrupt SPI FLASH.
>
> Have you any further history on this laptop?

Fresh out of the box. SKU 213
Box id: BCL201208280039C16

Sameer



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