some first impressions

Jim Gettys jg at
Sat Aug 18 10:19:37 EDT 2007

The SD is not really intended as removable media.  The USB slots are. SD
is intended primarily as a way to augment the internal flash over the
life of the system. It is in an inconvenient location (there weren't
many other options).

We were/are most concerned about keeping water out...
                             - Jim

On Fri, 2007-08-17 at 22:32 -0700, Hal Murray wrote:
> > I've tried one SD card made by a local company. It's a bit thinker
> > than the genuine panasonic one. So this results in that it can only be
> > ejected out a bit and I have to use my finger nail to grab it out.
> > (probably same situation as you) Usually there's a groove at the tail
> > of an SD card top side. However, the access on XO SD slot is only on
> > the bottom side... :( 
> I tried a handy SD card in my system.  I have a B2 case with a B3 board.
> There are a rubber flaps covering the entrance hole.  The flaps are pointed 
> in, so inserting the card bends the flaps open but extracting the card tries 
> to close the flaps.  If they stick (and they do) then closing the flaps makes 
> them stick even more.
> I think the basic problem is that the flaps stick harder than the internal 
> spring pushes.  You can feel them if you poke the card in partway and then 
> pull it out.
> My SD card has a grove on the edge of the card.  It's about the right size 
> for a fingernail.  The XO case has a slight indentation for your finger.  
> Unfortunately, it's on the bottom rather than the top so I can't get at the 
> grove in the card.
> Mumble.  Better have a pair of tweezers handy if you expect to use the SD 
> slot.
Jim Gettys
One Laptop Per Child

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