B3 with different RAM chips

John Watlington wad at laptop.org
Sat Nov 28 22:47:40 EST 2009

Be aware that the test.sh script tends to be destructive to the device.
If a device is close to failing (which is when you start seeing
a larger number of errors), they will push it over the edge quickly.

Some less reliable cards fail after as little as 900 GB written.


On Nov 28, 2009, at 1:31 AM, Richard A. Smith wrote:

>> Can you provide me with the software or scripts you use to do your
>> internal SD card testing? I would love to put this card and the other
>> more reliable SanDisk one I have to find out if it is a problem with
>> the 1.5 card reader or the SD cards.
> It's the same scripts used for NAND testing.
> http://wiki.laptop.org/go/NAND_Testing
> Git repo:
> http://dev.laptop.org/git/users/wad/NANDtest/
> -- 
> Richard A. Smith  <richard at laptop.org>
> One Laptop per Child

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